IMPORTANT: IMPORTANT : IMPORTANTE:
Read Before Using Lire avant usage Leer antes de usar
Operating/Safety Instructions
Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento y seguridad
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GRL4000-80CH
GRL4000-80CHV
RC5
-2-
GRL4000
-
8
0CH
36
01K6
1J10
18
V
/ 4 x 1.5V (D)
Robert B
osch T
oo
l Corp.
Mount
P
r
ospect, IL
Made in China
2X
1
CONTAI
N
S
FCC : S
QG
B
L654
IC : 3
147A-BL6
54
(16)
(17)
(22)
(18)
(18)
(18)
GRL4000-80CH
IEC
60825
-1:2014
<1 mW @ 635
n
m
2
LAS
ER
RADI
ATION
. DO
NO
T
STARE IN
TO
BEAM
. CLASS
2 LA
SER PR
O
DU
CT
. COMPLIES
WI
T
H
2
1 CFR
10
40.10
AN
D
10
40.1
1 EXC
EPT F
O
R DEVIATIO
NS PUR
S
U
ANT T
O
L
ASER
N
O
TI
CE 5
0, 6/
24/
20
07.
RAD
IACIÓN
L
ÁSER. N
O M
IR
E AL
RAY
O
. PR
OD
U
CTO
LÁS
ER
D
E
CLASE
2. CUMPL
E CO
N
LAS NO
R
MA
S 21
CFR 10
40.1
0 Y 10
40.1
1, EXC
EPTO POR
L
AS DESVI
ACI
O
NES
CO
NFORM
E AL
AVI
SO
PAR
A
LÁSE
R
E
S 50
D
EL
24 DE J
U
NI
O DE 2
007.
R
AY
ONNE
MENT LA
SER. NE
R
E
GARDEZ PA
S DIRECTE
MENT DAN
S
LE F
AI
S
CEAU. PRODUIT L
ASER DE
CLASS
E 2. CO
NFO
R
ME
À 21
CFR
104
0.10
ET 1
040.1
1, SAUF POUR
L
ES ÉC
AR
T
S SUIVA
N
T
L'AVIS L
ASER
50
, 24/6/
2007
.
(21)
(19)
(9)
(9)
(18)
(1)
(2)
(3)
(14)
(4)
(13) (11)(12)
(7)
(15)
(8)
-3-
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(9) (9)
(9)
(9)
(11)(12)(13)(14)(15)
(16)
(17)
(19)
(21)
(20)
(22)
(18)
(18)
(18)
(18)
GRL4000-80CHV
IEC
60825
-1:2014
<1 mW @ 635
n
m
2
LAS
ER R
ADI
ATIO
N. DO
NO
T
STARE IN
TO
BEAM
. CLASS
2 LA
SER PRODU
CT
. COMPLIES
WI
T
H
2
1 CFR
10
40.10
AND
10
40.1
1 EXC
EPT F
O
R DEVIATIONS PUR
S
UANT T
O
L
ASER
N
OTI
CE 5
0, 6/
24/
20
07.
RAD
IACIÓ
N
L
ÁSER. N
O
M
IR
E AL
R
AY
O
. PR
O
D
UCTO LÁS
ER
D
E
CLASE
2. CUMPL
E CO
N
LAS NO
RMA
S 21
CFR 10
40.1
0 Y 10
40.1
1, EXC
EPTO POR
L
AS DESVI
ACI
O
NES
CO
NFOR
M
E AL
AVI
SO
PAR
A
LÁSE
RE
S 50
D
EL
24 DE J
U
NI
O
DE 2
007.
R
AY
O
NN
E
MENT LA
SER. N
E
RE
G
ARD
EZ P
A
S D
IR
ECTE
MENT DAN
S
LE F
AI
S
CEAU
. PRODUIT L
ASER DE
CLASS
E 2. CO
NFO
R
ME
À 21
CFR
104
0.10
ET 1
040.1
1, SAUF POUR L
ES ÉCART
S SUIVA
N
T
L'AVIS L
ASER
50
, 24/6/
2007
.
G
RL4000-80C
HV
3601K61F10
18V
/ 4 x
1.5V
(D)
R
obert Bos
c
h Tool Corp.
Mount Pro
spect, IL
Made in China
2X1
CONTAINS
FCC :
S
QGBL
6
54
IC
: 314
7A-B
L
65
4
-4-
(a)
(c)
(b)
(e)
(d)
(g)
(f)
(h)
(d)
(g)
(f)
(c)(a)
(b)
GRL4000-80CH
GRL4000-80CHV
-5-
X Y
RC5
(26)
(27)
(28)
(29)
(30)
(31)
(32)
(33) (34) (35) (36) (37)
(41)
RC5 3601K69R10
Robert Bosch Tool Corp.
Mount Prospect, IL
Made in China
Batt. 2 x 1.5V LR6 (AA)
2X1
CONTAINS
FCC: SQGBL654
IC: 3147A-BL654
(38)
(39)
(40)
(43)
(41)
(42)
(44)
-6-
A
(1)
(23)
(24)
(25)
(24)
(i)
(i)
B
GRL4000-80CH
GRL4000-80CHV
-7-
CD
(50)
(49)
(48)
(46)
(45)
(47)
(47)
-8-
1
2
EF
GH
IJ
-9-
(52)
(54)
(55)
GCC 30-4
(53)
(51)
LR40
(42)
(51)
GR13
(43)
(44)
BT170HD
-10-
Read all instructions. Failure to follow all instructions listed below may
result in hazardous radiation exposure, electric shock, fire and/or
serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE
The term “tool” in all of the warnings listed below refers to your mains-operated (corded) tool or
battery-operated (cordless) tool.
The following labels are on your laser tool for your convenience and
safety. They indicate where the laser light is emitted by the tool.
ALWAYS BE AWARE of their location when using the tool.
Do not direct the laser beam at persons or animals and do not stare into
the laser beam yourself. This tool produces laser class 2 laser radiation and
complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant
to Laser Notice No. 50, dated June 24, 2007. This can lead to persons being
blinded.
DO NOT remove or deface any warning or caution labels. Removing labels increases the
risk of exposure to laser radiation.
It is the user’s responsibility to periodically check the accuracy of the
laser level as work progresses. Always check the accuracy of the laser
level after it has been dropped or subject to extreme temperatures and temperature variations.
If glass light house breaks when dropped, broken glass can cause
laceration hazard and unit to lose its IP rating. Contact customer service
immediately.
General Safety Rules
Safety Symbols
The definitions below describe the level of severity for each signal word. Please read the
manual and pay attention to these symbols.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
Read manual symbol - Alerts user to read manual.
WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
This symbol designates that this laser leveling tool complies with Part
15 of the FCC Rules.
IEC 60825-1:2014
<1 mW @ 635 nm
2
LASER RADIATION. DO NOT STARE INTO BEAM. CLASS 2 LASER PRODUCT. COMPLIES WITH 21 CFR
1040.10 AND 1040.11 EXCEPT FOR DEVIATIONS PURSUANT TO LASER NOTICE 50, 6/24/2007.
RADIACIÓN LÁSER. NO MIRE AL RAYO. PRODUCTO LÁSER DE CLASE 2. CUMPLE CON LAS NORMAS 21
CFR 1040.10 Y 1040.11, EXCEPTO POR LAS DESVIACIONES CONFORME AL AVISO PARA LÁSERES 50
DEL 24 DE JUNIO DE 2007.
RAYONNEMENT LASER. NE REGARDEZ PAS DIRECTEMENT DANS LE FAISCEAU. PRODUIT LASER DE
CLASSE 2. CONFORME À 21 CFR 1040.10 ET 1040.11, SAUF POUR LES ÉCARTS SUIVANT L'AVIS LASER
50, 24/6/2007.
-11-
Use of controls or adjustments or
performance of procedures other than
those specified in this manual, may result
in hazardous radiation exposure.
ALWAYS make sure that any bystanders
in the vicinity of use are made aware of the
dangers of looking directly into the laser
tool.
DO NOT place the laser tool in a position
that may cause anyone to stare into the
laser beam intentionally or unintentionally.
Serious eye injury could result.
ALWAYS position the laser tool securely.
Damage to the laser tool and/or serious injury
to the user could result if the laser tool fails.
ALWAYS use only the accessories that are
recommended by the manufacturer of your
laser tool. Use of accessories that have been
designed for use with other laser tools could
result in serious injury.
DO NOT use this laser tool for any purpose
other than those outlined in this manual.
This could result in serious injury.
DO NOT leave the laser tool “ON”
unattended in any operating mode.
DO NOT disassemble the laser tool. There
are no user serviceable parts inside. Do not
modify the product in any way. Modifying
the laser tool may result in hazardous laser
radiation exposure.
DO NOT use the laser viewing glasses as
safety goggles. The laser viewing glasses
are used for improved visualization of the laser
beam, but they do not protect against laser
radiation.
DO NOT use the laser viewing glasses as
sun glasses or in traffic. The laser viewing
glasses do not afford complete UV protection
and reduce color perception.
DO NOT use any optical tools such as, but
not limited to, telescopes or transits to view
the laser beam. Serious eye injury could result.
DO NOT stare directly at the laser beam or
project the laser beam directly into the eyes
of others. Serious eye injury could result.
Work area safety
Keep work area clean and well lit. Cluttered
or dark areas invite accidents.
DO NOT operate the laser tool around
children or allow children to operate the
laser tool. Serious eye injury could result.
DO NOT use laser tools, attachments and
accessories outdoors when lightning
conditions are present.
Do not operate the laser tool in explosive en-
vironments, such as in the presence of flam-
mable liquids, gases or dusts. Sparks can be
created in the laser tool which may ignite the
dust or fumes.
Electrical safety
Batteries can explode or
leak, cause injury or fire.
To reduce this risk, always follow all instructions
and warnings on the battery label and package.
DO NOT expose the laser tool and battery to
rain or wet conditions. Water entering laser
tool will increase the risk of fire and personal
injury.
DO NOT short any battery terminals.
DO NOT charge alkaline batteries.
DO NOT mix old and new alkaline batteries.
Replace all of them at the same time with new
batteries of the same brand and type.
DO NOT mix battery chemistries.
Dispose of or recycle batteries per local code.
DO NOT dispose of batteries in fire.
Keep batteries out of reach of children.
Remove batteries if the device will not be used
for several months.
Personal safety
If laser radiation strikes your eye, you must
deliberately close your eyes and immediate-
ly turn your head away from the beam.
Do not make any modifications to the laser
equipment.
Stay alert, watch what you are doing and
use common sense when operating a tool.
Do not use a tool while you are tired or
under the influence of drugs, alcohol or
medication. A moment of inattention while
operating a tool may result in serious personal
injury or incorrect measurement results.
Use safety equipment. Always wear
eye protection. Safety equipment such as
dust mask, non-skid safety shoes, hard hat,
or hearing protection used for appropriate
conditions will reduce personal injuries.
Use caution when using laser tools in the
vicinity of electrical hazards.
-12-
Magnets
Keep the tool, wall mount, laser
receiver, and laser target plate
away from cardiac pacemakers.
The magnets of the tool and laser target plate
generate a field that can impair the function of
cardiac pacemakers.
Keep the tool, wall mount, laser receiver,
and laser target plate away from magnetic
data medium and magnetically-sensitive
equipment. The effect of the magnets of
the tool and laser target plate can lead to
irreversible data loss.
Use and care
Use the correct tool for your application.
The correct tool will do the job better
and safer.
Do not use the tool if the switch does not
turn it on and off. Any tool that cannot be
controlled with the switch is dangerous and
must be repaired.
Store idle tool out of the reach of children
and do not allow persons unfamiliar with
the tool or these instructions to operate
the tool. Tools are dangerous in the hands of
untrained users.
Maintain tools. Check for misalignment or
binding of moving parts, breakage of parts
and any other condition that may affect
the operation. If damaged, have the tool
repaired before use. Many accidents are
caused by poorly maintained tools.
Use the tool, accessories, etc., in
accordance with these instructions and in
the manner intended for the particular type
of tool, taking into account the working
conditions and the work to be performed.
Use of the tool for operations different from
those intended could result in a hazardous
situation.
Battery tool use and care
Recharge only with the charger specified by
the manufacturer. A charger that is suitable for
one type of battery pack may create a risk of
fire when used with another battery pack.
Use laser tools only with specifically
designated battery packs. Use of any other
battery packs may create a risk of injury and fire.
When battery pack is not in use, keep it
away from other metal objects like paper
clips, coins, keys, nails, screws, or other
small metal objects that can make a
connection from one terminal to another.
Shorting the battery terminals together may
cause burns or fire.
Under abusive conditions, liquid may be
ejected from the battery; avoid contact.
If contact accidentally occurs, flush with
water. If liquid contacts eyes, additionally
seek medical help. Liquid ejected from the
battery may cause irritation or burns.
Do not use a battery pack or tool that is
damaged or modified. Damaged or modified
batteries may exhibit unpredictable behavior
resulting in fire, EXPLOSION or risk of injury.
Do not expose a battery pack or tool to fire
or excessive temperature. Exposure to fire or
temperature above 265 °F (130 °C) may cause
explosion.
Follow all charging instructions and
do not charge the battery pack or tool
outside the temperature range specified in
the instructions. Charging improperly or at
temperatures outside the specified range may
damage the BATTERY and increase the risk
of fire.
Service
Have your tool serviced by a qualified
repair person using only identical
replacement parts. This will ensure that the
safety of the tool is maintained.
Develop a periodic maintenance schedule
for tool. When cleaning a tool be careful
not to disassemble any portion of the tool
since internal wires may be misplaced or
pinched or may be improperly mounted.
Certain cleaning agents such as gasoline,
carbon tetrachloride, ammonia, etc., may
damage plastic parts.
SAVE THESE INSTRUCTIONS.
-13-
The manufacturer is not respon-
sible for radio interference caused
by unauthorized modifications to
this equipment. Such modifications could void
the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
1) This device may not cause harmful inter-
ference, and
2) This device must accept any interference
received, including interference that may
cause undesired operation.
NOTE! This equipment has been tested and
found to comply with the limits for a Class
B digital devices, pursuant to Part 15 of the
FCC rules. These limits are designed to pro-
vide reasonable protection against harmful
interference in a residential installation. This
equipment generates uses and can radiate
radio frequency energy and, if not installed
and used in accordance with the instructions,
may cause harmful interference to radio com-
munications. However, there is no guarantee
that interference will not occur in a particu-
lar installation. If this equipment does cause
harmful interference to radio or television re-
ception, which can be determined by turning
the equipment off and on, the user is encour-
aged to try to correct the interference by one
or more of the following measures:
• Reorientorrelocatethereceivingantenna.
• Increasetheseparationbetweentheequip-
ment and receiver.
• Connecttheequipmentintoanoutletona
circuit different from that to which the re-
ceiver is connected.
• Consultthedealeroranexperiencedradio/
TV technician for help.
“Exposure to Radio Frequency (RF) Signals:
The wireless device is a radio transmitter and
receiver. It is designed and manufactured not
to exceed the emission limit for exposure to
radio frequency (RF) energy set by the Minis-
try of Health (Canada), Safety Code 6. These
limits are part of comprehensive guidelines
and established permitted levels of RF energy
for the general population.
FCC Caution
This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the
following two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
Industry Canada (IC)
-14-
The numbering of the product features shown refers to the illustration of the tool on the
graphic page.
Rotary laser
(1) Battery compartment cover
(2) Battery compartment cover locking
mechanism
(3) Slope button down ▼/Button for clock-
wise rotation
(4) Slope button up ▲/Button for anticlock-
wise rotation
(5) Line operation button
(6) Rotational operation button
(7) Bluetooth® button
(8) Variable laser beam
(9) Laser beam outlet aperture
(10) Upwards plumb point
A)
(11) On/off button
(12) Status indicator
(13) Manual operation button
(14) Slope button
(15) Display
(16) Tripod mount 5/8” (horizontal)
(17) Carrying handle
(18) Notch for orientation
(19) Laser warning label
(20) Tripod mount 5/8” (vertical)
(21) Serial number
(22) Recess for Bluetooth® localization
module
(23) Battery adapter
(24) Release button for rechargeable
battery/battery adapter
(25) Rechargeable battery
A) In vertical mode, the upwards plumb
point applies as a 90° reference point.
Rotary laser indicator elements
(a) Laser operating mode indicator
(b) Bluetooth® connection indicator
(c) Shock-warning function indicator
(d) Battery charge indicator for rechargeable
battery/non-rechargeable batteries
(e) Plumb point function indicator
(downwards)
(f) X-axis slope angle indicator
(g) Y-axis slope angle indicator
(h) Rotational speed indicator
(i) Softkey symbols
Remote control
(26) Plumb point function button
(downwards)
(27) Rotational operation button
(28) Sleep mode button
(29) Line operation button
(30) Button for anticlockwise rotation
(31) Slope button, up
(32) Slope button
(33) Signal transmission indicator
(34) X-axis status indicator
(35) Y-axis status indicator
(36) Slope button, down
(37) Button for clockwise rotation
(38) Battery compartment cover
locking mechanism
(39) Serial number
(40) Battery compartment cover
(41) Remote control
Features
-15-
The numbering of the product features shown refers to the illustration of the tool on the
graphic page.
Accessories/replacement parts
(42) Laser receiver
(43) Measuring rod
A)
(44) Tripod
A)
(45) Wall mount/alignment unit
(46) Wall mount fastening screw
(47) Wall mount fixing holes
(48) Push button for coarse adjustment
of the wall mount
(49) Wall mount fine adjustment
screw
(50) 5/8” wall mount screw
(51) Magnet
(52) Laser viewing glasses
A)
(
53) Laser target plate
A)
(54) Case
(55) Bluetooth® localization module
A)
A) Accessories shown or described are not included with the product as standard. You can
find the complete selection of accessories in our accessories range.
-16-
Rotary Laser GRL4000-80CH GRL4000-80CHV
Article number 3 601 K61 J10 3 601 K61 F10
Working range (Diameter)
–without laser receiver
–with laser receiver
approx. 200 ft
(approx. 60 m)
approx. 4000 ft
(approx. 1200 m)
approx. 200 ft
(approx. 60 m)
approx. 4000 ft
(approx. 1200 m)
Leveling Accuracy
1) 2)
–Horizontal
–Vertical
±1/16 in @ 100 ft
(±1.5 mm/30m )
±1/16 in @ 100 ft
(±1.5 mm/30m )
±1/8 in @ 100 ft
(±3 mm/30m)
Self-leveling range (typical) ±8.5% (±5°) ±8.5% (±5°)
Scan angle for line operation n/a 0º/10º/25º/50º
Leveling duration at a slope of up to ±3% 30s 30s
Rotational speed 600min
-1
150/300/600min
-1
Singe/dual-axis slope operation ±8.5% ±8.5%
Accuracy of single-axis slope operation
B)
±0.2% ±0.2%
Max. altitude
6560 ft
(approx. 2000 m)
6560 ft
(approx.
2000 m)
Relative air humidity max.
90%
90%
Laser class 2 2
Laser type 635 nm, <1 mW 635 nm, <1 mW
Divergence of laser line <1.5 mrad (full angle) <1.5 mrad (full angle)
Recommended laser receiver LR40 LR40
Tripod mount (horizontal/vertical) 5/8 in-11 5/8 in-11
Laser level power supply
– Rechargeable battery pack (Li-ion)
– Non-rechargeable batteries
(alkaline manganese) (with battery adapter)
18 V
4 x 1.5V LR20 (D)
18 V
4 x 1.5V LR20 (D)
Approx. operating time
– with Lithium Ion (or rechargeable) battery (4 Ah)
– with non-rechargeable batteries
60 h
70 h
60 h
70 h
Bluetooth® laser level
– Class
– Compatibility
– Max. signal range
– operating frequency range
– Max. transmission power
1
Bluetooth® 5.0/4.X
(Low Energy)
E)
328 ft (100 m)
F)
2402–2480 MHz
6.3 mW
1
Bluetooth® 5.0/4.X
(Low Energy)
E)
328 ft (100 m)
F)
2402–2480 MHz
6.3 mW
Bluetooth® smartphone
– Compatibility
– Operating system
Bluetooth® 5.0/4.X
(Low Energy)
E)
Android 6, iOS 10
(and above)
Bluetooth® 5.0/4.X
(Low Energy)
E)
Android 6, iOS 10
(and above)
-17-
Rotary Laser GRL4000-80CH GRL4000-80CHV
Weight according to EPTA-Procedure 01:2014
– with rechargeable battery
G)
– with non-rechargeable batteries
9.3−10.6 lb (4.2-4.8 kg)
10 lb (4.6 kg)
9.3−10.6 lb (4.2-4.8 kg)
10 lb (4.6 kg)
Dimensions (length × width × height) 12.8 x 7.4 x 11 in
(327 × 188 × 278 mm)
12.8 x 7.4 x 11 in
(327 × 188 × 278 mm)
Protection rating IP 68 IP 68
If mounted on a tripod, drop-proof to a height of 6 ft (2 m) 6 ft (2 m)
Recommended ambient temperature
during charging
32 °F ~ 95 °F
(0 °C to +35 °C)
32 °F ~ 95 °F
(0 °C to +35 °C)
Permitted ambient temperature
– during operation
H)
– during storage
14 °F ~ 122 °F
(–10 °C to +50 °C)
-4 °F ~ 122 °F
(–20 °C to +50 °C)
14 °F ~ 122 °F
(–10 °C to +50 °C)
-4 °F ~ 122 °F
(–20 °C to +50 °C)
Batteries Bosch GBA18V40 Bosch GBA18V40,
GBA18V80
Chargers Bosch GAL18V40 Bosch GAL18V40
A) The working range may be reduced by unfavorable environmental conditions (e.g. direct sunlight).
B) At 20 °C.
C) Along the axes.
D) At a maximum slope of ±8.5%, the maximum deviation is ±0.2%.
E) Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is
expected.
F) When using Bluetooth® Low Energy devices, it may not be possible to establish a connection depending on the
model and operating system. Bluetooth® devices must support the SPP profile.
G) The signal range may vary greatly depending on external conditions, including the receiving device used. The
Bluetooth® range may be significantly weaker inside closed rooms and through metallic barriers (e.g. walls,
shelving units, cases, etc.).
H) Depends on battery in use.
The serial number (21) on the type plate is used to clearly identify your measuring tool.
GBA18V80
-18-
Rotary laser
The laser level is intended for establishing and
checking exactly horizontal height profiles,
vertical lines, alignments and plumb points.
The laser level is suitable for indoor and
outdoor use.
Remote control
The remote control is intended for controlling
the Bosch rotary lasers via Bluetooth
®
.
The remote control is suitable for indoor and
outdoor use.
Intended Use
Remote Control RC5
Article number 3 601 K69 R10
Working range (radius) 300 ft (100 m)
Operating temperature
1
4 °F ~ 122 °F (–10 °C to +50 °C)
Storage temperature
–
4 °F ~ 158 °F (–20 °C to +70 °C)
Max. altitude
6560 ft (approx. 2000 m)
Relative air humidity max. 90%
Pollution degree according to IEC 61010-1 2
A)
Bluetooth® remote control
– Class
– Compatibility
– Max. signal range
– Operating frequency range
– Max. transmission power
1
Bluetooth® 5.0/4.X (Low Energy)
B)
328 ft (100 m)
C)
2402–2480 MHz
6.3 mW
Batteries 2 × 1.5 V LR6 (AA)
Weight according to EPTA-Procedure 01:2014 0.37 lb (0.17 kg)
Dimensions (length × width × height) 4.8 x 2.3 x 1 in (122 × 59 × 27 mm)
Protection rating IP 54
A) Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is
expected.
B) When using Bluetooth® Low Energy devices, it may not be possible to establish a connection depending on the
model and operating system. Bluetooth® devices must support the SPP profile.
C) The signal range may vary greatly depending on external conditions, including the receiving device used. The
Bluetooth® range may be significantly weaker inside closed rooms and through metallic barriers (e.g. walls,
shelving units, cases, etc.).
-19-
Laser level Power Supply
The laser level can be operated either with
conventional non-rechargeable batteries or
with a Bosch lithium-ion battery.
Do not use any commercially available re-
chargeable batteries (e.g. nickel metal hy-
dride).
Operation with Bosch Rechargeable Lithium-
ion Battery Pack
Use only Bosch recharge-
able lithium-ion battery
packs listed in the technical data section of
this manual. Use of other battery packs may
increase the risk of fire, personal injury and
property damage.
Note: The battery pack is supplied partially
charged. To ensure full capacity of the battery
pack, completely charge the battery pack in
the battery charger before using for the first
time.
Use only Bosch chargers
listed in the technical
data section of this manual. Use of other
chargers may increase the risk of fire, person-
al injury and property damage.
The lithium-ion battery pack can be charged
at any time without reducing its service life.
Interrupting the charging procedure does not
damage the battery pack.
The “Electronic Cell Protection (ECP)” pro-
tects the lithium-ion battery pack against
deep discharging. When the battery pack is
discharged, the laser tool is switched off by a
protective circuit.
u Do not switch the laser level back on after
it has been switched off by the protective
circuit. This can damage the battery.
Battery charge indicator
If the rechargeable battery is removed from
the laser level, its state of charge may be indi-
cated by the green LEDs of the battery charge
indicator on the battery.
Press the button for the battery charge indica-
tor
or to show the state of charge.
If no LED lights up after pressing the button
for the battery charge indicator, then the bat-
tery is defective and must be replaced.
B
attery model CORE18V GBA18V...
LEDs Capacity
5× continuous green light 80−100 %
4× continuous green light 60−80 %
3× continuous green light 40−60 %
2× continuous green light 20−40 %
1× continuous green light 5−20 %
1× flashing green light 0−5 %
Recommendations for Optimal Handling
of the Battery
Protect the battery against moisture and water.
Only store the battery within a temperature range
of −20 to 50 °C. Do not leave the battery in your
car in the summer, for example.
Occasionally clean the ventilation slots on the bat-
tery using a soft brush that is clean and dry.
A significantly reduced operating time after charg-
ing indicates that the battery has deteriorated and
must be replaced.
Follow the instructions on correct disposal.
Operation with Non-Rechargeable Batteries,
LR20 (D)
It is recommended that you use alkaline manga-
nese batteries to operate the laser level.
Put the batteries into the battery adapter (23).
Make sure that the polarity is correct and corre-
sponds to the diagram on the battery adapter.
u The battery adapter is intended only for use
in designated Bosch laser levels and must
not be used with power tools.
Always replace all the batteries at the same time.
Only use batteries from the same manufacturer
and which have the same capacity.
u Take the batteries out of the laser level
when you are not using it for a prolonged
period of time. The batteries can corrode and
self-discharge during prolonged storage in the
laser level.
Changing the batteries/rechargeable battery
(see figure A)
To replace the batteries/rechargeable battery,
move the locking mechanism (2) of the battery
compartment cover into position
and open the
battery compartment cover (1).
Assembly
-20-
Insert either a charged rechargeable battery (25)
or the battery adapter (23) with fitted batteries into
the battery compartment until you feel it click into
place.
To remove the rechargeable battery (25) or bat-
tery adapter (23), press the release button (24)
and pull the rechargeable battery or battery
adapter out of the battery compartment. Do not
use force to do this.
Close the battery compartment cover (1) and
move the locking mechanism (2) into position
.
Battery Charge Indicator
The battery charge indicator (d) will indicate the
state of charge of the batteries/rechargeable bat-
teries on the display:
Indicator Capacity
60 − 100%
30 − 60%
5 − 30%
0 − 5%
If the batteries or rechargeable bat-
tery are empty, a warning message
will appear for a few seconds and the
status display (12) will flash red
quickly. The laser level will then switch itself off.
Remote control power supply
Using alkali-manganese batteries is recom-
mended to operate the remote control.
Turn the locking mechanism (38) of the bat-
tery compartment cover into position
(e.g.
using a coin). Open the battery compartment
cover (40) and insert the batteries.
When inserting the batteries, ensure that the
polarity is correct according to the illustration
on the inside of the battery compartment.
Close the battery compartment cover (40)
and turn the locking mechanism (38) of the
battery compartment cover into position .
u Remove the batteries from the remote
control when not using it for longer pe-
riods. The batteries can corrode and self-
discharge during prolonged storage in the
remote control.
Note: The Bluetooth® function remains active
as long as batteries are fitted in the remote
control. The batteries can be removed in or-
der to prevent energy consumption by this
function.
-21-
u Protect the laser level and remote control
against moisture and direct sunlight.
u Do not expose the laser level or remote
control to any extreme temperatures or
variations in temperature. For example, do
not leave them in a car for extended periods
of time. In case of large variations in tem-
perature, allow the laser level and the remote
control to adjust to the ambient temperature
before putting them into operation. Before
continuing work with the laser level, always
perform an accuracy check (see “Accuracy
Check of the Laser level”, page 28). The preci-
sion of the laser level may be compromised if
exposed to extreme temperatures or fluctua-
tions in temperature.
u Avoid substantial knocks to the laser level
and avoid dropping it. Always carry out an
accuracy check before continuing work if the
laser level has been subjected to severe ex-
ternal influences (see “Accuracy Check of the
Laser level”, page 28).
Starting Operation of the
remote control
The remote control will only work if it is fitted
with batteries that are sufficiently charged.
After pressing a button on the remote control,
the operation indicator (33) will light up, indi-
cating that a signal has been sent out.
It is not possible to switch the laser level on/
off with the remote control.
Starting Operation of the
rotary laser
Setting up the laser level
Horizontal position Vertical position
(only GRL4000-80CHV)
Position the laser level on a stable surface in
the horizontal or vertical position, mount it on
the tripod (44) or on the wall mount (45) with
the alignment unit.
Due to its high leveling accuracy, the laser
level is very sensitive to knocks and vibrations
and changes in position. Take care, therefore,
that the laser level is stable to avoid interrup-
tions to the operation caused by releveling.
Operating the laser level
The main functions of the laser level are con-
trolled by the buttons on the laser level and
the remote control (41). Additional functions
are available via the remote control (41), the
laser receiver (42), or by controlling remote-
ly via the Bosch Leveling Remote App (see
“Overview of control options for the func-
tions”, page 35).
For the indicator on the laser level’s display
(15), the following applies:
– The current settings for this function will be
indicated when a function button (e.g. the
line operation button (5)) is pressed for the
first time. The settings will be changed the
next time a function button is pressed.
– In the lower part of the display, softkey sym-
bols (i) are shown in various menus. The
corresponding function keys (softkeys)
arranged around the display can be used
to execute the functions represented by
the symbols (i) (see figure B). Depending
on the corresponding menu, the symbols
show the usable function buttons (e.g. the
rotational operation button in the rotational
operation menu (6)) or additional functions
such as Next (
), Back ( ) or Confirm ( ).
– The softkey symbols (i) also make it easy to
recognise whether the Slope button down/
Button for clockwise rotation (3) and Slope
button up/Button for anticlockwise rotation
(4) buttons in the current menu are used to
slope downwards (▼) or slope upwards (▲)
or to turn in a clockwise (
) or anticlock-
wise ( ) direction.
– The function menus or status messages can
be exited at any time by briefly pressing the
on/off button (11). This will save the last
setting of the function menu.
– The display will automatically go back to
the start screen five seconds after the last
press of a button.
– The display (15) will light up with every
press of a button or signal that reaches the
measuring tool. The light will go out ap-
proximately one minute after the last press
of a button.
Operation
-22-
Tilting or rotation in various functions can be
accelerated if the respective tilting or rotation
buttons on the laser level or the remote con-
trol are held down for longer.
All functions are reset to their standard set-
ting when the laser level is switched off.
Switching On and Off
Note: After the first time the tool is started up
and before beginning work, you should always
perform an accuracy check (see “Accuracy
Check of the Laser level”, page 28).
To switch on the laser level, press the on/off
button (11). The start screen will appear for
a few seconds, followed by the home screen.
The laser level emits the variable laser beam
(8) and the plumb beam up (for GRL4000-
80CHV only) (10) from the outlet apertures
(9).
Do not point the laser
beam at persons or ani-
mals and do not look into the laser beam
yourself, not even from a large distance.
Leveling starts automatically and
is shown by the flashing leveling
indicator on the display, the flash-
ing laser beams and the flashing
status display (12) (see “Automatic leveling”,
page 25).
After leveling has suc-
cessfully been com-
pleted, the home
screen will appear, the
laser beams will light up continuously, rota-
tion will start and the status display will light
up green continuously.
Do not leave the switched
on tool unattended and
switch the tool off after use.
To switch off the laser level, press
and hold the on/off button (11) un-
til the switch off symbol appears
on the display.
If the maximum permitted operat-
ing temperature of 50 °C is ex-
ceeded, a warning message will
appear for a few seconds and the
status display (12) will flash red.
The laser level will then shut down in order
to protect the laser diode. Once it has cooled
down, the laser level is operational again and
can be switched back on.
Establishing a connection to the remote
control/laser receiver
In the default factory setting, the laser level,
the remote control (41) and the laser receiver
(42) which come with the set are already con-
nected via Bluetooth®.
To connect the remote con-
trol or the laser receiver,
press and hold the Blue-
tooth® button (7) until the indicator for estab-
lishing a connection with the remote control/
laser receiver appears on the display.
To establish a connection to the remote con-
trol, then press the button for anticlockwise
rotation (30) and the button for clockwise
rotation (37) on the remote control, both for
five seconds and at the same time. While the
connection to the remote control is being es-
tablished, the status indicators (34) and (35)
on the remote control will alternately flash
green.
To establish a connection to the laser receiv-
er, press on the X-axis and Y-axis buttons on
the laser receiver for five seconds at the same
time. For this, please observe the operating
instructions for the laser receiver.
It will be confirmed on the
display whether a connec-
tion has successfully been
established to the remote
control or the laser receiver. The status indi-
cator (12) on the laser level and the status
indicators (34) and (35) on the remote con
trol will light up green for three seconds.
If no connection could be
established, an error mes-
sage will appear on the dis-
play and the status indica-
tor (12) on the laser level will light up red for
three seconds. If the attempt to establish a
connection to the remote control has failed,
the status indicators (34) and (35) on the re-
mote control will also light up red for three
seconds.
Two laser receivers can work with the laser
level at the same time.
If other remote controls or laser receivers are
connected, the oldest connection will then be
deleted.
Remote control via the Bosch Leveling
Remote App
The laser level is equipped with a Bluetooth®
module which uses radio technology to en-
-23-
able remote control via a smartphone with a
Bluetooth® interface.
The Bosch Leveling Remote App application
(app) is required to use this function. You can
download this in the app store for your ter-
minal device (Apple App Store, Google Play
Store).
Information about the system requirements
for a Bluetooth® connection can be found on
the Bosch website at www.bosch-pt.com
When remote controlling via Bluetooth®, poor
reception conditions can cause time delays
between the mobile terminal device and the
laser level.
Do not turn on laser re-
motely using the Bosch
app without line of sight to the laser tool.
The sudden bright laser beam may increase
the risk of personal injury or property dam-
age.
Ensure there are no bystanders in the direct
path of the laser beam before turning on the
laser remotely.
To switch on Bluetooth® to con-
trol remotely via the app, briefly
press the Bluetooth® button (7).
The indicator for establishing a
connection with the app will appear on the
display. Ensure that the Bluetooth® interface
is activated on your mobile device.
It will be confirmed on the display
whether a connection has suc-
cessfully been established. The
existing connection is visible on
the Bluetooth® connection indicator (b) on
the home screen.
If no connection could be estab-
lished, an error message will ap-
pear on the display.
The connection between mobile end device
and laser level is established after the Bosch
application has started. If multiple active la-
ser levels are found, select the appropriate
laser level. A connection will be established
automatically if only one active laser level is
found.
The Bluetooth® connection may be interrupt-
ed if the distance between the laser level and
the mobile device is too great or is blocked,
and if there are any sources of electromagnet-
ic interference. In this case, another attempt
to establish a connection will automatically
begin.
To switch off Bluetooth® to con-
trol remotely via the app, press
the Bluetooth® button (7). The in-
dicator for a terminated connec-
tion will appear on the display and the Blue-
tooth® connection indicator (b) on the
standard screen will go out.
The Bluetooth® function is switched on by
default.
Sleep mode
During breaks from work, you can set the
measuring tool to sleep mode. All your set-
tings will still be saved.
To switch on sleep
mode, briefly press the
on/off button (11). In
the menu which sub-
sequently appears the on/off button (11) as
often as required until sleep mode has been
selected. Confirm your selection with by
pressing the slope button (14).
Alternatively, you can switch on sleep mode
by pressing the sleep mode button (28) on
the remote control or leveling remote app.
Do not switch off sleep
mode remotely without
line of sight to the laser tool. The sudden
bright laser beam may increase the risk of per-
sonal injury or property damage.
Ensure there are no bystanders in the direct
path of the laser beam before turning off
sleep mode remotely.
When sleep mode is switched on,
the sleep mode symbol will be indi-
cated on the display. The status in-
dicator (12) will slowly flash green.
The shock-warning function will remain acti-
vated and all settings will be saved.
To switch off sleep mode, briefly press the on/
off button (11) on the measuring tool or press
the button for sleep mode (28) on the remote
control.
You can also switch off the measuring tool
while it is in sleep mode by pressing and hold-
ing the on/off button (11) for an extended
period of time. All other buttons on the mea-
suring tool and the remote control will be de-
activated.
It is also possible to switch sleep mode on
and off via the Bosch Levelling Remote App.
-24-
Locking the keyboard
The keyboard of the laser level
and the remote control can be
locked via the Bosch Leveling Re-
mote App. The keyboard lock in-
dicator will appear on the laser level’s display.
The keyboard can be unlocked as follows:
– via the Bosch Leveling Remote App,
– by switching the laser level on and off via
the on/off button (11)
– or by pressing the ▲/
(4) and ▼/ (3) but-
tons on the measuring tool at the same
time.
Operating Modes
Alignment of X and Y-axis
-X
+X
-Y
+Y
(16)
(16)
Prof
essional
GR
L
4
00
0
-
80CHV
The alignment of the X and Y axes is marked
on the housing above the rotation head. The
markings are exactly above the alignment
notches (16) at the bottom edge of the hous-
ing and on the lower handle. The laser level
can be aligned along the axes by using the
alignment notches.
Operating modes overview
All three operating modes are possible with
the laser level in horizontal and vertical posi-
tion.
Rotational operation
Rotational operation is es-
pecially recommended when
using the laser receiver. For
GRL4000-80CHV it is possible
to select between different ro-
tational speeds.
Line operation
(for GRL4000-80CHV only)
In this operating mode, the vari-
able laser beam moves within a
defined aperture angle. This
increases the visibility of the
laser beam in comparison to
rotational operation. You can
select between different aper-
ture angles.
Point operation
(for GRL4000-80CHV only)
In this operating mode, the
best visibility of the variable
laser beam can be reached.
For example, it is used to eas-
ily project heights or to check
building lines.
Line and point operation are not suitable for
use with the laser receiver (42).
Rotational operation
(for GRL4000-80CHV)
Each time after switching on, the measuring
tool is in rotational operation mode with stan-
dard rotational speed (300 min–1).
To switch from line operation to rotational op-
eration, press the rotational operation button
(6) or the rotational operation button (27) on
the remote control.
To change the rotational speed,
press the rotational operation
button (6) or the rotational opera-
tion button (27) on the remote
control until the required speed is indicated
on the display.
The set speed can be seen on the rotational
speed indicator (h) on the home screen.
When working with the laser receiver, the
highest rotational speed should be set. When
not working with the laser receiver, reduce
the rotational speed for improved visibility of
the laser beam and use the laser goggles (52).
Rotational operation (for GRL4000-80CH)
Each time after switching on, the measuring
tool is in rotational operation mode with stan-
dard rotational speed (600 min–1). Adjusting
the speed for the GRL4000-80CH is not pos-
sible.
-25-
Line operation/point operation
(for GRL4000-80CHV only)
To switch to line or point operation, press the
line operation button (5) or the line operation
button (29) on the remote control.
To change the aperture angle,
press the line operation button
(5) or the line operation button
(29) on the remote control until
the required operating mode is indicated on
the display. The aperture angle is reduced in
stages each time a button is pressed until
point operation is achieved. Pressing the line
operation button again takes you back to line
operation via rotational operation at moder-
ate speed.
Note: Due to inertia, it is possible for the laser
to slightly move beyond the end point of the
laser line.
Functions
Turning the line/point within the
rotational plane (for GRL4000-80CHV only)
In line and point operation, the laser line or
the laser point can be positioned within the
rotational plane of the laser. Rotation is pos-
sible by 360°.
To rotate anticlockwise, press the button
(4)
on the measuring tool or the button for anti-
clockwise rotation (30) on the remote control.
To rotate clockwise, press the button
(3) on
the measuring tool or the button for clockwise
rotation (37) on the remote control.
Turning the rotational plane when
in the vertical position
(for GRL4000-80CHV only)
When the laser level is in the vertical position,
it is possible to rotate the laser point, laser
line or rotational plane around the Y-axis for
easy sighting out or parallel alignment in a
range of ±8.5%.
To start the function, press the
button for setting the slope (14)
on the laser level or the button for
setting the slope (32) on the re-
mote control. The indicator for setting the
slope of the Y-axis will appear and the symbol
for the Y-axis will flash.
To rotate the rotational plane, press the ▲ but-
ton (4) or the ▼ button (3) on the measuring
tool or the up (31) or down (36) slope button
on the remote control until the required posi-
tion is reached.
Automatic plumb point function in the
vertical position (for GRL4000-80CHV only)
When the laser level is in the vertical position,
the variable laser beam (8) can automatically
be aligned vertically downwards for plumbing
by using the remote control or via the Bosch
Levelling Remote App.
To start the downwards plumb
point function, press the plumb
point function button (26) on the
remote control. The plumb point
function symbol will appear on the display
while the variable laser beam is aligned verti-
cally. After it has been successfully aligned,
the plumb point function indicator (e) will ap-
pear on the start screen.
Note: Possible rotation of the rotational plane
around the Y-axis is not in the form of rotation
around the plumb point.
Center line mode
In center line mode, the laser level automati-
cally attempts to align the laser beam to the
center line of the laser receiver by moving the
rotation head up and down. The laser beam
can be aligned in relation to the X-axis or the
Y-axis of the laser level.
Center line mode is started at the laser re-
ceiver. For this, please read and observe the
operating instructions for the laser receiver.
During the search, the center line
mode indicator for each axis will ap-
pear on the display of the laser level
and the status display (12) will flash red.
If the laser beam could be aligned to the cen-
ter line of the laser receiver, the center line
mode will automatically finish and the slope
found will be indicated on the home screen.
If the laser beam could not be
aligned to the center line of the laser
receiver, an error message will ap-
pear on the display. Before restarting the
function, check the position of the laser level
and the laser receiver.
Mask mode (see figure C)
In rotational operation, the variable laser
beam (8) can be switched off for one or more
quadrants of the rotational plane. This makes
it possible to limit the risk related to laser
beams to certain areas. Interference from the
laser beam that affects other tools or inter-
ference with the laser receiver by unintended
reflections can also be avoided.
-26-
The switching off of individual quadrants can
only be controlled by using the Bosch Level-
ing Remote App. The quadrants in which the
laser beam is visible can be seen in the laser
operating mode indicator (a) on the home
screen.
Automatic leveling
Overview
After switching on, the laser level checks the
horizontal and vertical position and automati-
cally levels out any unevenness within the self-
leveling range of approx. ±8.5% (approx 5°).
The leveling indicator flashes on
the display during leveling. The
status display (12) on the laser
level and the status display for the
respective axis ((35) or (34)) on the remote
control flash a uniform green at the same
time.
The rotation is stopped until leveling has been
completed and the laser beams are flashing.
The home screen will appear after leveling
has been successfully completed. The laser
beams will light up continuously and rotation
will start. The status display (12) on the laser
level and the status display for the levelled
axis ((35) or (34)) on the remote control will
light up green continuously.
If the laser level is at a slant
of more than 8.5%, leveling
will no longer be possible.
An error message will ap-
pear on the display and the status display
(12) will flash red.
Reposition the laser level and wait for it to re-
level.
If the maximum leveling
time is exceeded, leveling
will be discontinued with
an error message.
Reposition the laser level and briefly press the
on/off button (11) to restart leveling.
Position changes
When the laser level is levelled in, it continu-
ously checks the horizontal and vertical posi-
tion. Re-leveling is automatically performed if
there are any position changes.
Minimal position changes are levelled out
without interrupting the operation. This auto-
matically compensates subsoil ground vibra-
tions or weather influences.
For larger position changes, the rotation of
the laser beam will be stopped in order to
avoid faulty measurements during the leveling
process and the laser beams will flash. The
leveling indicator will appear on the display.
The shock-warning function will be actuated,
if required.
The GRL4000-80CHV will automatically detect
the horizontal or vertical position. To change
between the horizontal and the vertical po-
sition, switch the laser level off, reposition it
and switch it on again.
If the position is changed without
switching on/off, an error mes-
sage will appear and the status
display (12) will quickly flash red.
Briefly press the on/off button (11) to restart
leveling.
Shock-warning function
The laser level has a shock-warning function.
After position changes or shock to the mea-
suring tool, or in case of ground vibrations,
it keeps the laser level from levelling in at
changed positions, and thus prevents errors
caused by a change in the laser level’s posi-
tion.
Activating the shock-warning function:
The shock-warning
function is switched
on automatically. It is
activated approxi-
mately 30 seconds after the laser level has
been switched on. During activation, the
shock-warning indicator (c) will light up on
the display. The indicator lights up continu-
ously after activation.
Shock warning actuated:
If the position of the
laser level is changed
or a severe knock is
registered, the shock
warning will be actuated. The laser will stop
rotating and an error message will appear.
The status display (12) will quickly flash red
and a warning signal will sound at a faster
rate.
Confirm the warning message with
by
pressing the slope button (14) on the laser
level or the slope button (32) on the remote
control. When working with automatic level-
ling (including slope operation), levelling is
automatically restarted.
-27-
Now check the position of the laser beam at a
reference point and, if necessary, correct the
height or alignment of the laser level.
Switching off the shock-warning function:
On the home screen, the current setting is
shown with the shock-warning indicator (c):
Shock-warning function is switched
on.
Shock-warning function is switched
off.
To switch the shock-
warning function off or
on, briefly press the
on/off button (11).
Then press the on/off button (11) in the menu
which appears as often as needed until the
required setting has been selected. Confirm
your selection with by pressing the slope
button (14).
If the shock-warning function has been
switched on, it will be activated after approxi-
mately 30 seconds.
Slope operation in the horizontal position
In the laser level’s horizontal position, the X-
axis and the Y-axis can be tilted independently
of each other in a range of ±8.5%.
To tilt the X-axis, press
the slope button (14)
on the measuring tool
or the slope button
(32) on the remote control once. The menu
for setting the slope of the X-axis will appear.
Set the required slope by using the buttons ▲
(4) or ▼ (3) on the measuring tool or using the
up (31) or down (36) slope buttons on the re-
mote control. Pressing both slope buttons on
the measuring tool or on the remote control at
the same time resets the slope back to 0.00%.
To tilt the Y-axis, press
the slope button (14)
on the measuring tool
or the slope button
(32) on the remote control again. The menu
for setting the slope of the Y-axis will appear.
Set the required slope in the same way as out-
lined for the X-axis.
The required slope is implemented
on the measuring tool a few sec-
onds after the last press of a but-
ton. The laser beam and the symbol
for setting the slope will flash on the display
until the process of setting the slope has been
completed.
After the process of
setting the slope has
been completed, the
set slope values of
both axes will be shown on the start screen.
The status indicator (12) on the measuring
tool will light up red continuously. The status
indicator for the tilted axes ((35) and/or (34))
will light up red continuously.
Manual operation
The automatic leveling of the laser level can
be switched off (manual operation):
– in the horizontal position for both axes in-
dependently of each other,
– in the vertical position for the X-axis (the
Y-axis cannot be levelled in the vertical po-
sition).
It is possible to set up the laser level at any
inclination in the manual operation mode. The
axes can also be tilted independently of each
other in a range of ±8.5% on the laser level. In
manual operating mode, the slope value of an
axis will not be shown on the display.
The status indicator (12) on the laser level will
light up red continuously if:
– at least one axis is set to manual operating
mode in the horizontal position,
– the X-axis is set to manual operating mode
in the vertical position.
The Y-axis status display (35) or the X-axis sta-
tus display (34) on the remote control light up
red continuously if the relevant axis is set to
manual operating mode.
Manual operation cannot be started via re-
mote control. However, you can change the
slope of an axis in exactly the same way us-
ing the Slope button up (31) and the Slope
button down (36) on the remote control and
the buttons ▲ (4) and ▼ (3) on the measuring
tool.
Manual operation in the horizontal position
To switch off automat-
ic leveling, press the
manual operation but-
ton (13) until the re-
quired settings combination for both axes is
achieved. In the illustrated example, automat-
ic leveling for the X-axis is switched off and
the Y-axis continues to be leveled.
-28-
To tilt an axis with au-
tomatic levelling
switched off, press
the slope button (14)
while the menu for manual operating mode
is displayed.
If automatic leveling is only switched off for
one axis, it will only be possible to change the
slope of that axis. When manually operating
both axes, it is possible to switch between the
axes by pressing the slope button (14) again.
The symbol for the axis whose slope can be
changed will flash.
Tilt the selected axis using the ▲ (4) or ▼ (3)
buttons until the required position is reached.
Manual operation in the vertical position
(for GRL4000-80CHV only).
To switch off automatic leveling
for the X-axis, press the manual
operation button (13) once. (The
Y-axis cannot be leveled when in
the vertical position.)
To tilt the X-axis without using au-
tomatic leveling, press the slope
button (14) while manual operat-
ing mode is indicated on the dis-
play. The symbol for the X-axis
will flash on the display.
Tilt the X-axis using the ▲ (4) or ▼ (3) buttons
until the required position is reached.
To rotate the Y-axis, press the
slope button (14) again while
manual operating mode menu is
displayed. The symbol for the Y-
axis will flash on the display.
Rotate the Y-axis using the ▲ (4) or ▼ (3) but-
tons until the required position is reached.
Accuracy Check of the
Laser level
The following tasks should be performed only
by well-trained and qualified persons. The le-
galities with regard to performing an accuracy
check or calibration of a laser level must be
known.
Influences on Accuracy
The largest influence is exerted by the ambi-
ent temperature. In particular, temperature
differences that occur from the ground up-
wards can refract the laser beam.
Since the temperature stratification is great-
est at ground level, you should always mount
the laser level on a tripod for measuring dis-
tances of 65.6 ft or more. In addition, posi-
tion the laser level in the center of the work
surface, wherever this is possible.
The deviations have an impact on measuring
distances of approx. 65.6 ft (20 m) or more,
and at 300 ft (100 m) the deviation can easily
be two to four times larger than that at 65.6
ft (20 m).
In addition to external influences, device-spe-
cific influences (e.g. falls or heavy impacts)
can also lead to deviations. For this reason,
check the leveling accuracy each time before
beginning work.
If the laser level exceeds the maximum devia-
tion for the measuring procedures described
below, perform a calibration (see “Calibrat-
ing the laser level”, page 29) or have the laser
level checked by a Bosch customer service
agent.
Checking the leveling accuracy in a horizon-
tal position
For this check, you will need a free measuring
distance of 100 ft on firm ground in front of
a wall. You need to complete the entire mea-
surement process for the X and Y-axis respec-
tively.
– Mount the laser level in a horizontal position
100 ft from the wall on a tripod, or place it
on a firm, level surface. Switch on the laser
level.
100 ft (30 m)
– Once leveling is complete, mark the center
of the laser beam on the wall (point I).
180°
d
-29-
– Rotate the laser level 180° without chang-
ing its position. Allow it to level in and mark
the center point of the laser beam on the
wall (point II). Note that point II should
preferably be positioned vertically above or
below point I.
The discrepancy d between the two marked
points I and II on the wall reveals the actual
height deviation of the laser level for the axis
being measured.
Repeat the measuring process for the other
axis. To do this, turn the laser level through
90° before beginning the measurement.
The maximum permitted deviation on the
100 ft measuring distance is as follows: 100
ft (30 m) is ±1/16 in (±1.5mm). The discrep-
ancy d between points I and II must therefore
amount to no more than 1/8 in (3 mm) for
each of the two measuring processes.
Checking the leveling accuracy in the verti-
cal position (for GRL4000-80CHV only)
For this check, you will need a free measuring
distance on firm ground in front of a 30 ft (10
m) tall wall. Fix a plumb line to the wall.
– Position the laser level in the vertical po-
sition on a firm, level surface. Switch the
laser level on and allow it to level in.
30 ft (10 m)
d
– Set up the laser level so that the laser beam
meets the plumb line at the exact center of
the upper end. The discrepancy d between
the laser beam and the plumb line at the
lower end of the line reveals the laser lev-
el’s deviation from the vertical.
For a 30 ft tall measuring distance, the maxi-
mum permitted deviation is as follows:
30 ft
(10 m) is
±3/64 in (±1mm). The discrepancy d
must therefore be no more than 1 mm.
Calibrating the laser level
User Calibration - uCAL
The following tasks should be performed only
by well-trained and qualified persons. The le-
galities with regard to performing an accuracy
check or calibration of a laser level must be
known.
u Perform calibration of the laser level with
extreme precision or have the laser level
checked by a Bosch customer service
agent. Inaccurate calibration leads to incor-
rect measuring results.
u Only start the calibration if you have to
perform a calibration of the laser level.
As soon as the laser level is in calibration
mode, you must perform the calibration
meticulously to the end in order to ensure
that no incorrect measuring results are pro-
duced afterwards.
Check the leveling accuracy after every cali-
bration (see “Accuracy Check of the Laser
level”, page 28). If the deviation is outside
the maximum permitted limits, have the laser
level checked by a Bosch customer service
agent.
X-axis and Y-axis Calibration
Calibration is only possible by using the laser
receiver LR40. The laser receiver must be con-
nected to the laser level via Bluetooth® (see
“Establishing a connection to the remote con-
trol/laser receiver”, page 22).
The positions of the laser level and laser re-
ceiver cannot be changed during calibration
(with the exception of the outlined alignments
or rotations). The laser level should therefore
be placed on a firm, level surface and the la-
ser receiver should be secured to the wall.
Calibration should be performed via the
Bosch Leveling Remote App if possible.
There is less likelihood of error when control-
ling the tool via the app. Otherwise, the laser
level’s position can be altered if buttons are
pressed without due care.
For calibration without the app, the buttons
on the laser level already outlined must be
pressed. It is not possible to operate the laser
level via the remote control.
A free measuring distance of 100 ft (30 m) on
a firm surface in front of a wall is required.
If no such measuring distance is possible,
calibration can also be performed with lower
measuring accuracy on a measuring distance
of 50 ft.
Mount the laser level in the horizontal posi-
tion 100 ft (30 m) or 50 ft (15 m) from the
laser receiver on the tripod (44) or position it
on a firm, level surface.
-30-
Secure the laser receiver LR40 at the correct
height:
– Either to a wall or to another surface by
means of magnets or the suspension hooks
on the laser receiver,
– or to a securely fastened measuring rod
(43) with the holder for the laser receiver.
For this, please observe the operating instruc-
tions for the laser receiver.
X
Y
Align the laser level so that the X-axis indica-
tor imprinted on the laser level with the “+”
side is pointing to the laser receiver. For this,
the X-axis must be perpendicular to the laser
receiver.
To start calibration:
– For calibration via the Bosch Levelling Re-
mote App: Switch on the measuring tool.
Start calibration in the app. Follow the in-
structions in the app.
– For calibration without the app: Switch on
the measuring tool and the laser receiver.
Make sure that both of these are connect-
ed via Bluetooth®. Start the calibration by
pressing the on/off button on the laser re-
ceiver and the center line mode button on
the laser receiver at the same time. “CAL”
will appear on the display of the laser re-
ceiver.
Press the center line mode button on the laser
receiver to cancel the calibration, if required.
In the menu that ap-
pears in the measuring
tool display after start-
ing the calibration, se-
lect the existing distance between the mea-
suring tool and the laser receiver. To do this,
press the buttons ▲ (4) or ▼ (3). Confirm your
selection with by pressing the slope button
(14).
To confirm the select-
ed measuring distance
( ), including the cor-
responding levelling
accuracy, on the display which appears, press
the slope button (14). To go back to selecting
the measuring distance ( ), press the line
operation button (5).
Align the height of the laser receiver so that
the variable laser beam (8) on the laser re-
ceiver is indicated as “centered” (see operat-
ing instructions for the laser receiver). Secure
the laser receiver at this height.
Check whether the la-
ser level and laser re-
ceiver are aligned with
each other, as illustrat-
ed on the display (the “+” side of the X-axis is
aligned to the laser receiver). Start the cali-
bration of the X-axis with by pressing the
slope button (14).
If this step appears on
the display, rotate the
laser level 180° so that
the “–” side of the
X-axis is aligned to the laser receiver. For each
rotation, take care not to change the height
and position of the laser level. Confirm the ro-
tation with by pressing the slope button
(14). Calibration of the X-axis continues.
The indicator opposite
will appear if both
sides of the X-axis have
been successfully cali-
brated. XOK will appear on the display of the
laser receiver.
Continue the calibration with
by pressing
the slope button (14).
To calibrate the Y-axis,
rotate the measuring
tool 90° in the direc-
tion of the arrow so
that the “+” side of the Y-axis is directed at the
laser receiver. Confirm the rotation with by
pressing the slope button (14).
If this step appears on
the display, rotate the
measuring tool 180°
so that the “–” side of
the Y-axis is aligned to the laser receiver. Con-
firm the rotation with by pressing the slope
button (14). Calibration of the Y-axis contin-
ues.
-31-
This symbol will ap-
pear on the measuring
tool display if the Y-ax-
is has been success-
fully calibrated. “YOK” will appear on the dis-
play of the laser receiver.
Finish the calibration of the Y-axis with
by
pressing the slope button (14).
This symbol confirms
that the X-axis and the
Y-axis have been suc-
cessfully calibrated
with the levelling accuracy selected at the be-
ginning. End the calibration with by press-
ing the slope button (14).
If the calibration has been completed suc-
cessfully, the measuring tool then automati-
cally switches itself off.
The relevant error message
will appear in the measur-
ing tool display if calibra-
tion of the X-axis or the
Y-axis has failed. “ERR”
will appear on the display
of the laser receiver.
Cancel the calibration with
by pressing the
button for line operation (5). Check the posi-
tion of the tool VS receive before restart. Re-
start the calibration. If calibration fails again,
have the measuring tool checked by a Bosch
customer service agent.
Z-axis calibration (for GRL4000-80CHV only)
A free measuring distance on firm ground in
front of a 30 ft (10 m) wall is required for the
calibration. Fix a plumb line to the wall.
30 ft (10 m)
Position the measuring tool on a firm, level
surface. Switch the measuring tool on and
allow it to level in. Align the measuring tool
so that the laser beam is perpendicular to the
wall and cuts through the plumb line. Switch
the measuring tool off.
To start calibration mode, press and hold the
slope button (14) and then also briefly press
the on/off button (11). The measuring tool is
switched on. Allow the measuring tool to level
in.
Align the laser beam so that it
runs as parallel as possible to the
plumb line. Tilt the laser beam in
the ◀ direction by pressing the ▲
button (4). Tilt the laser beam in the ▶ direc-
tion by pressing the ▼ button (3).
If it is not possible to align the laser beam in
parallel to the plumb line, align the measuring
tool to the wall more precisely and start the
calibration process again.
If the laser beam is aligned in parallel, save
the calibration with
by pressing the slope
button (14).
This symbol confirms that the Z-
axis has been calibrated success-
fully. At the same time, the status
indicator (12) will flash green
three times. End the calibration with by
pressing the slope button (14). The device
will shut down.
This error message will appear if
calibration of the Z-axis has been
unsuccessful. Cancel the calibra-
tion with by pressing the but-
ton for line operation (5).
Ensure that the reference vertical line is in
the pivoting range of the rotation head and
restart the calibration. Make sure that the la-
ser level is not moved during the calibration.
If the calibration is again unsuccessful, have
the laser level checked by a Bosch customer
service agent.
-32-
Working Advice
u Only the center of the laser point or laser
line must be used for marking. The size of
the laser point/the width of the laser line
changes depending on the distance.
u The laser level is equipped with a wireless
interface. Local operating restrictions,
e.g. in aeroplanes or hospitals, must be
observed.
Working with the Laser Target Plate
The laser target plate (53) improves visibility
of the laser beam in unfavorable conditions
and at greater distances.
The reflective half of the laser target plate
(53) improves visibility of the laser line. The
transparent half enables the laser line to be
seen from behind the laser target plate.
Working with the Tripod (Accessory)
A tripod offers a stable, height-adjustable
support surface for measuring. For horizontal
operation, place the laser level with the 5/8”
tripod mount (18) on the thread of the tripod
(44). Tighten the laser level using the locking
screw of the tripod.
For vertical operation, use the 5/8” tripod
mount (20).
On a tripod featuring a measuring scale on
its extender, you can set the height deviation
straight away.
Roughly align the tripod before switching on
the laser level.
Laser Goggles (Accessory)
The laser goggles filter out ambient light. This
makes the light of the laser appear brighter
to the eye.
u Do not use the laser goggles as protective
goggles. The laser goggles make the laser
beam easier to see; they do not protect you
against laser radiation.
u Do not use the laser goggles as sunglasses
or while driving. The laser goggles do not
provide full UV protection and impair your
ability to see colors.
Working with a wall mount and alignment
unit (see figure D)
The laser level can be secured to the wall us-
ing the wall mount with the alignment unit
(45). Using the wall mount is recommended,
e.g. when working above the maximum exten-
sion height of tripods, or when working on
unstable surfaces without a tripod.
Fasten the wall mount (45) either to a wall us-
ing screws through the fixing holes (47) or to
a strip of wall using the fastening screw. (46)
Fit the wall mount as perpendicular as pos-
sible to the wall and ensure it is mounted in
a stable way.
Screw the 5/8” wall mount screw (50) into
the horizontal tripod mount (18), depending
on the requirements of the task, or the verti-
cal tripod mount (20) on the laser level.
Using the alignment unit allows the laser level
to be moved in a range of approx. 13 cm with
respect to height. Press the button (48) and
move the alignment unit to roughly the re-
quired height. It is possible to align the laser
beam precisely to a reference height using the
fine adjustment screw (49).
Working with the measuring rod (acces-
sory) (see figure E)
To check levels or apply slopes, it is recom-
mended to use the measuring rod (43) togeth-
er with the laser receiver.
A relative measuring scale is incorporated at
the top of the measuring rod (43). You can
preselect its zero at the bottom on the ex-
tender. This enables you to read deviations
from the target height straight away.
Example applications
Projecting/checking heights (see figure F)
Position the laser level in the horizontal posi-
tion on a firm support or mount it on a tripod
(44) (accessory).
Working with a tripod: Set the laser beam
at the required height. Project or check the
height at the target location.
Working without a tripod: Determine the
height difference between the laser beam
and the height at the reference point using
the laser target plate (53). Project or check
the height difference measured at the target
location.
Parallel alignment of a plumb beam/project-
ing right angles (see figure F)
When right angles are to be projected or parti-
tion walls are to be aligned, the plumb beam
(10) must be aligned in parallel, meaning at
the same distance to a reference line (e.g. a
wall).
For this, set up the laser level in the vertical
position and position it in such a manner that
the plumb beam runs approximately parallel
to the reference line.
-33-
For the exact positioning, measure the clear-
ance between the plumb beam and reference
line directly on the laser level using the laser
target plate (53). Measure the clearance be-
tween the plumb beam and reference line
again as far away as possible from the laser
level. Align the plumb beam in such a man-
ner that it has the same clearance to the ref-
erence line as when measured directly at the
laser level.
The right angle to the plumb beam (10) is in-
dicated by the variable laser beam (8).
Indicating a perpendicular/vertical plane
(see figure G)
To indicate a perpendicular or a vertical plane,
set up the laser level in the vertical position.
When the vertical plane is supposed to run at
a right angle to a reference line (e.g. a wall),
align the plumb beam (10) with this reference
line.
The perpendicular plane is indicated by the
variable laser beam (8).
Aligning a perpendicular/vertical plane
(see figure H)
To align the vertical laser line or the rotational
plane against a reference point on a wall, set
up the laser level in the vertical position, and
roughly align the laser line or the rotational
plane with the reference point. For precise
alignment with the reference point, turn the
rotational plane around the Y-axis (see “Turn-
ing the rotational plane when in the vertical
position”, page 25).
Working without the laser receiver
Under favorable light conditions (dark envi-
ronment) and for short distances, it is pos-
sible to work without the laser receiver. For
improved visibility of the laser beam, either
select line operation or point operation and
rotate the laser beam to the target location.
Working with the laser receiver
(see figure E)
In unfavorable lighting conditions (bright
environment, direct sunlight) and for larger
distances, use the laser receiver to improve
detection of the laser beam (42). When work-
ing with the laser receiver, select rotational
operation with the highest rotational speed.
Working outdoors (see figure E)
The laser receiver (42) should always be used
when working outdoors.
When working on unstable ground, mount the
laser level on the tripod (44). Always work
with the shock-warning function activated in
order to avoid faulty measurements in case
of ground movements or shocks to the laser
level.
Setting up formwork (see figure I)
Mount the laser level in the horizontal posi-
tion on a tripod (44) and set up the tripod
outside the formwork area. Select rotational
operation.
Secure the laser receiver (42) to a measuring
rod (43) with the holder. Position the measur-
ing rod on a reference point for the formwork.
Align the height of the laser receiver on the
measuring rod so that the variable laser beam
(8) of the laser level is indicated as “cen-
tered” (see operating instructions for the la-
ser receiver).
Then position the measuring rod with the la-
ser receiver, one after the other, at different
test locations on the formwork. Make sure
that the laser receiver remains in the same
position on the measuring rod.
Correct the height of the formwork until the
laser beam is indicated as “centered” at all
test locations.
Checking slopes (see figure J)
Mount the laser level in the horizontal posi-
tion on a tripod (44). Select rotational opera-
tion.
Set up the tripod with the laser level so that
the X-axis is aligned with the slope that is to
be checked.
Position the target slope as the slope for the
X-axis (see “Slope operation in the horizontal
position”, page 26).
Secure the laser receiver (42) to a measuring
rod (43) with the holder. Place the measuring
rod at the base of the slope surface.
Align the height of the laser receiver on the
measuring rod so that the variable laser beam
(8) of the laser level is indicated as “cen-
tered” (see operating instructions for the la-
ser receiver).
Then position the measuring rod with the la-
ser receiver, one after the other, at different
test locations on the slope surface. Make sure
that the laser receiver remains in the same po-
sition on the measuring rod.
If the slope of the plane is correct, the laser
beam will be indicated as “centered” at all
test locations.
-34-
Overview of status indicators
Measuring tool Function
Green Red
Ⴝ Horizontal position: X- or Y-axis levelling process.
Vertical position: X-axis levelling process.
Ⴝ Sleep mode activated.
● Horizontal position: Both axes are levelled.
Vertical position: X-axis is levelled.
Ⴝ automatic shut-down due to error message (e.g. empty rechargeable/non-rechargeable battery,
operating temperature exceeded).
Ⴝ Centre line mode started (see operating instructions for the laser receiver).
Ⴝ Position of the measuring tool changed without switching on/off.
Ⴝ Self-levelling not possible, end of the self-levelling range.
Ⴝ Shock-warning function actuated.
Ⴝ Measuring tool is being calibrated.
● Horizontal position: At least one axis is tilted or is in manual operating mode.
Vertical position: X-axis is tilted or in manual operating mode.
●lighting up continuously
Ⴝflashing
Remote control
X
Remote control
Y
Function
Green Red Green Red
Ⴝ X-axis levelling process (horizontal and vertical positions).
Ⴝ Y-axis levelling process (horizontal position).
Ⴝ Ⴝ Remote control is connected via Bluetooth®.
(Both of the status indicators flash alternately.)
Remote control successfully connected via Bluetooth®.
●
●
X-axis is levelled in (horizontal and vertical positions).
●
●
Y-axis is levelled in (horizontal position).
●
●
X-axis is tilted or in manual operating mode (horizontal and vertical
positions).
●
●
Y-axis is tilted or in manual operating mode (horizontal position).
Unsuccessful connection to the measuring tool via Bluetooth®.
●lighting up continuously
Ⴝflashing
-35-
Function GRL4000-80CH GRL4000-80CHV RC5 LR40 Bosch Leveling
Remote App
Switching on/off ● ● — — —
Establish connection via Bluetooth®
A)
● ● ● ● ●
Sleep mode — — ● — ●
Switch on the keyboard lock — — — — ●
Switch off the keyboard lock ● ● — — ●
Rotation operation ● ● ● — ●
Line and point operation — ● ● — ●
Turning the line/point within the
rotational plane
— ● ● — ●
Turning the rotational plane when
in the vertical position
— ● ● — ●
Automatic plumb point function
in the vertical position
— — ● — ●
Center line mode — — — ● —
Partial projection — — — — ●
Shock-warning function ● ● — — ●
Inclination operation ● ● ● — ●
Manual operation ● ● — — ●
X-axis and Y-axis calibration
(horizontal position)
B)
● ● — ● ●
Z-axis calibration (vertical position) — ● — — ●
A) The function must be started on both the laser level and the remote control, laser receiver or smart phone at the
same time.
B) The function must be started on both the measuring tool and the smartphone at the same time or on the laser
receiver.
Overview of control options for the functions
-36-
− Automatic shut-down
(empty batteries or
rechargeable battery)
Change the batteries or the rechargeable battery.
−/PNK Briefly press the on/off button(11). Start the connection
process again (see "Establishing a connection to the re-
mote control/laser receiver", page22).
If it is not possible to establish a connection, please con-
tact a Bosch customer service agent.
− Unsuccessful attempt to
connect to the mobile
device
Briefly press the on/off button(11). Start the connection
process again (see "Remote control via the Bosch Level-
ing Remote App", page22).
If it is not possible to establish a connection, please con-
tact a Bosch customer service agent.
− Measuring tool is at a slant
of more than 8.5% or is not
in the correct horizontal or
vertical position.
Reposition the laser level. Make sure that it is in the
correct position. The re-leveling will start automatically.
− Maximum levelling time is
exceeded.
Reposition the laser level. Make sure that it is in the
correct position. Briefly press the on/off button(11) to
restart levelling.
− Change between the hori-
zontal and vertical position
without switching the
measuring tool on/off
Briefly press the on/off button(11) to restart levelling.
ERR
Unsuccessful calibration
of the X-axis
ERR
Unsuccessful calibration
of the Y-axis
− Unsuccessful calibration
of the Z-axis
ERR
Unsuccessful centre line
mode in relation to the
X-axis
Press any button to terminate the function. Before re-
starting the function, check the position of the laser
level and the laser receiver.
ERR
Unsuccessful centre line
mode in relation to the
Y-axis
Press any button to terminate the function. Before re-
starting the function, check the position of the laser
level and the laser receiver.
Rectifying errors
Rotary laser display
indicator
Problem Corrective measure
− Adjust the laser level to the ambient temperature be-
fore switching it on. Then check the measuring accuracy
and calibrate the laser level if required.
Cancel the calibration with by pressing the button for
line operation (5). Check that the laser level and the
receiver are aligned correctly and restart the calibration.
Cancel the calibration with by pressing the button for
line operation (5). Check that the laser level and the
receiver are aligned correctly and restart the calibration.
Cancel the calibration with by pressing the button for
line operation (5). Check that the laser level is
aligned correctly and restart calibration.
Automatic shut-down
(operating temperature
exceeded)
Unsuccessful attempt to
connect to the remote
control (41) or the laser
receiverZ
Laser
receiver
display
indicator
-37-
Store and transport the
tool only in the supplied
protective case.
Check the tool each time before using.
Keep the tool clean and dry at all times to
ensure proper and safe operation.
Do not immerse the tool into water or other
fluids.
Wipe off debris using a moist and soft
cloth. Do not use any cleaning agents or
solvents.
Regularly clean the surfaces at the exit
opening of the laser.
In case of visible damage or loose
components in the interior of the tool, the
safe function is no longer ensured.
If the tool should fail despite the care
taken in manufacturing and testing
procedures, repair should be carried out
by an authorized after-sales service center
for Bosch power tools.
In all correspondence and spare parts
orders, please always include the 10-digit
article number given on the type plate of
the tool.
In case of repairs, send in the tool packed in
its protective case.
ENVIRONMENT PROTECTION
Recycle raw materials & batteries
instead of disposing of waste. The
unit, accessories, packaging &
used batteries should be sorted for
environmentally friendly recycling in accordance
with the latest regulations.
Maintenance and Service
-38-
LIMITED WARRANTY OF BOSCH LASER AND
Laser level PRODUCTS
Robert Bosch Tool Corporation (“Seller”) warrants to the original purchaser only, that all Bosch lasers and
laser levels will be free from defects in material or workmanship for a period of one (1) year from date of
purchase. Bosch will extend warranty coverage to two (2) years when you register your product within
eight (8) weeks after date of purchase. Product registration card must be complete and mailed to Bosch
(postmarked within eight weeks after date of purchase), or you may register on-line at www.boschtools.
com/Service/ProductRegistration. If you choose not to register your product, a one (1) year limited
warranty will apply to your product.
30 Day Money Back Refund or Replacement -
If you are not completely satisfied with the performance of your laser and laser levels, for any reason, you
can return it to your Bosch dealer within 30 days of the date of purchase for a full refund or replacement.
To obtain this 30-Day Refund or Replacement, your return must be accompanied by the original receipt
for purchase of the laser or optical instrument product. A maximum of 2 returns per customer will be
permitted.
SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and, to
the extent permitted by law, any warranty or condition implied by law, shall be the repair or replacement of
parts, without charge, which are defective in material or workmanship and which have not been misused,
carelessly handled, or misrepaired by persons other than Seller or Authorized Service Center. To make a
claim under this Limited Warranty, you must return the complete Bosch laser or laser level, transportation
prepaid, to any BOSCH Factory Service Center or Authorized Service Center. Please include a dated
proof of purchase with your tool. For locations of nearby service centers, please use our on-line service
locator or call 1-877-267-2499.
THIS WARRANTY PROGRAM DOES NOT APPLY TO TRIPODS AND RODS. Robert Bosch Tool
Corporation (“Seller”) warrants tripods and leveling rods for a period of one (1) year from date of
purchase.
THIS LIMITED WARRANTY DOES NOT APPLY TO OTHER ACCESSORY ITEMS AND RELATED
ITEMS. THESE ITEMS RECEIVE A 90 DAY LIMITED WARRANTY.
To make a claim under this Limited Warranty, you must return the complete product, transportation
prepaid. For details to make a claim under this Limited Warranty please visit www.boschtools.com or call
1-877-267-2499.
ANY IMPLIED WARRANTIES SHALL BE LIMITED IN DURATION TO ONE YEAR FROM DATE OF
PURCHASE. SOME STATES IN THE U.S., AND SOME CANADIAN PROVINCES DO NOT ALLOW
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY
NOT APPLY TO YOU.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
(INCLUDING BUT NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE
OR USE OF THIS PRODUCT. SOME STATES IN THE U.S., AND SOME CANADIAN PROVINCES DO
NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,
SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH VARY FROM STATE TO STATE IN THE U.S., OR PROVINCE TO PROVINCE
IN CANADA AND FROM COUNTRY TO COUNTRY.
THIS LIMITED WARRANTY APPLIES ONLY TO PRODUCTS SOLD WITHIN THE UNITED STATES
OF AMERICA, CANADA AND THE COMMONWEALTH OF PUERTO RICO. FOR WARRANTY
COVERAGE WITHIN OTHER COUNTRIES, CONTACT YOUR LOCAL BOSCH DEALER OR
IMPORTER.
