
Operator's Manual
17" 48V MAX* Lithium-Ion Cordless Brushless Mower CLMF4817E
Save this manual for future reference
* Maximum initial battery workload voltage (measured without a workload) is 48 volts (2*24 V).
Nominal voltage is 43.2 volts (2*21.6 V).
Read all safety rules and instructions carefully before operating this tool.
Distributed By: Suzhou Cleva Electric Appliance Co., Ltd.
NO.8 Ting Rong Street 215122 Suzhou - China
Battery Model Number is 24LB4005-C
Charger Model Number is 24LFC15-ETL

2
Section Page
TABLE OF CONTENTS
TABLE OF CONTENTS 2
SPECIFICATIONS 3
IMPORTANT SAFETY INSTRUCTIONS 4-8
SYMBOLS 9-11
KNOW YOUR LAWN MOWER 12-13
ASSEMBLY 14-19
BATTERY PACK AND CHARGER 20-22
OPERATION 23-25
MAINTENANCE 26-30
ENVIRONMENTALLY SAFE BATTERY DISPOSAL 31
TROUBLESHOOTING 32-33
LAWNMASTER
®
WARRANTY 34
EXPLODED VIEW 35
PARTS LIST 36
NOTES 37-38

3
SPECIFICATIONS
Type Cordless, Battery-powered
Motor Brushless
No-load Speed 3100 RPM
Deck Width 17" (424.7 mm)
Cutting Width 16'' (410 mm)
Height Adjustments 5 Positions (1.4"-3") (35-75 mm)
Wheel Size 5.51 " (140 mm) / 7.87 " (200 mm)
Unit Weight (With two 4.0Ah Batteries) 29.76 lbs (13.5 kg)
48V MAX* CORDLESS MOWER
Model Number 24LB4005-C
Rated Voltage of Battery 24 V Max* D.C
Capacity of Battery 4.0 Ah
Battery Type Lithium-Ion
BATTERY PACK
Model Number 24LFC15-ETL
Charger Input 120 V ~ 60 Hz 120 W
Charger Output 24 V D.C. 4.0 A
150 minutes (For two 24LB4005-C)
80 minutes (For one 24LB4005-C)
* Maximum initial battery workload voltage (measured without a workload) is 48 volts (2*24 V).
Nominal voltage is 43.2 volts (2*21.6 V).
BATTERY CHARGER
Charging Time

4
INTRODUCTION
This product has many features for making its use more pleasant and enjoyable.
Safety, performance, and dependability have been given top priority in the design of this product
making it easy to maintain and operate.
IMPORTANT SAFETY INSTRUCTIONS
This symbol indicates important safety instructions. If these instructions are not followed, it could
endanger the personal safety and/or property of the operator and others. Read and understand all
instructions in this manual before attempting to operate the mower. Failure to comply with these
instructions may result in personal injury.
This mower was built to be operated according to the rules for safe operation that are contained in this
manual. As with any type of power equipment, carelessness or error on the part of the operator can
result in serious injury. This mower is capable of amputating body parts and throwing objects. Failure
to observe the following safety rules could result in serious injury or death.
Use of this mower should be restricted to individuals who have read and understood and will follow the
warnings and instructions that are printed in this manual and on the mower.
TRAINING AND PREPARATION
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the equipment.
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RUZHWFRQGLWLRQVRURSHUDWHLQWKHUDLQNHHSD¿UPKROGRQWKHKDQGOHDQGZDONQHYHUUXQ
Ŷ.HHSFKLOGUHQDZD\.HHSWKHDUHDRIRSHUDWLRQFOHDURIDOOSHUVRQVSDUWLFXODUO\VPDOOFKLOGUHQDQG
pets. Stop the equipment if anyone enters the working area.
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capable to operate the lawn mower.
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equipment.
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of wear or deterioration and replace as needed.
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footwear.
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rubber gloves and footwear is recommended when working outdoors.
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all safety instructions could result in serious injury or death.
WARNING
DANGER
WARNING

5
IMPORTANT SAFETY INSTRUCTIONS
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is intended.
OPERATION
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mower.
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equipment, or cause the operator to lose their balance or footing.
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opening at all times.
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Regular glasses have only impact resistant lenses. They are NOT safety glasses. Following this rule
will reduce the risk of eye injury. Use face mask if operation is dusty.
Ŷ'RQRWOHDYHDUXQQLQJODZQPRZHUXQDWWHQGHG
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backing.
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is generally a warning of trouble.
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housing, and before making any repairs or inspections.
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collection bag or before unclogging the chute.
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direction on slopes. Do not mow excessively on steep slopes.
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turns slowly and gradually.
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attracted to the machine and the mowing activity. Never assume that children will remain where you
last saw them.
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than the operator.
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Ŷ'RQRWRYHUUHDFK.HHSSURSHUIRRWLQJDQGEDODQFHDWDOOWLPHV
Ŷ6WD\DOHUW:DWFKZKDW\RXDUHGRLQJ8VHFRPPRQVHQVH'RQRWRSHUDWHODZQPRZHUZKHQ\RX
are tired.
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They can affect the stability of the machine.
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bones, and other foreign objects.
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6
IMPORTANT SAFETY INSTRUCTIONS
MAINTENANCE AND STORAGE
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Do not repair or alter blade(s).
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changing accessories such as blades.
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dry and locked-up place, out of reach of children.
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UHSODFHPHQWEDJVFRPSO\ZLWKWKHRULJLQDOPDQXIDFWXUHUVUHFRPPHQGDWLRQVRUVSHFL¿FDWLRQV
Ŷ5HSODFHWKHEODGHLILWLVEHQWRUFUDFNHG$QXQEDODQFHGEODGHFDXVHVYLEUDWLRQWKDWFRXOGGDPDJH
the motor drive unit or cause personal injury.
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its center hole. The nail should also be in a horizontal position. If either end of the blade rotates
downward, shave some metal from the heavy or lower end until the blade is balanced. It is balanced
when neither end drops.
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Ŷ,QVSHFWWKHODZQPRZHUFRUGSHULRGLFDOO\DQGLIGDPDJHGKDYHLWUHSDLUHGE\DQDXWKRUL]HGVHUYLFH
facility. Inspect extension cords periodically and replace if damaged. Keep handles dry, clean, and
free from oil and grease.
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always be carefully examined and cleared of all objects prior to each mowing.
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- Stop lawn mower. Release the switch.
- Remove the safety key and disconnect the battery.
- Inspect for damage.
- Repair any damage before restarting and operating the lawn mower.
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IURPDZDOORUDQREVWUXFWLRQ¿UVWORRNGRZQDQGEHKLQGLQRUGHUWRDYRLGWULSSLQJDQGWKHQIROORZ
these steps:
- Step back from the mower in order to fully extend your arms.
- Be sure that you are well balanced.
- Pull the mower back slowly.
BATTERY PACK
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®
24LFC15-ETL, 24LFC14-ETL, 24LFC02-ETL
or 24LSC01-ETL chargers.
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WKDWLVVXLWDEOHIRURQHW\SHRIEDWWHU\SDFNPD\FUHDWHDULVNRI¿UHZKHQXVHGZLWKDQRWKHUEDWWHU\
pack.

7
IMPORTANT SAFETY INSTRUCTIONS
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shock.
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risk of explosion and possibly injury.
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eyes or skin. It may be toxic if swallowed.
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from the battery may cause irritation or burns.
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dropped or received a sharp blow. A damaged battery is subject to explosion. Properly dispose of a
dropped or damaged battery immediately.
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FRQWDFWZLWK\RXUVNLQZDVKLPPHGLDWHO\ZLWKVRDSDQGZDWHU,IOLTXLGJHWVLQWR\RXUH\HVÀXVK
them with clean water for at least 10 minutes, then seek immediate medical attention. Following this
rule will reduce the risk of serious personal injury.
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keys, nails, screws, or other small metal objects, that can make a connection from one terminal to
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temperature above 265°F (130°C) may cause an explosion.
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indicated in the instructions for use and care.
ŶFollow all charging instructions and do not charge the battery pack or lawn mower outside of the
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parts. This will ensure that the safety of the product is maintained.
BATTERY CHARGER
Ŷ7KLVFKDUJHULVRQO\FRPSDWLEOHZLWKLawnMaster
®
24LB4005-C, 24LB1304, 24LB2004, 24LB2605,
or 24LB4005 lithium-ion batteries.
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of batteries may burst, causing personal injury or damage.
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Ŷ'RQRWRSHUDWHFKDUJHUZLWKDGDPDJHGFRUGRUSOXJZKLFKFRXOGFDXVHVKRUWLQJDQGHOHFWULFVKRFN
If damaged, immediately discontinue use. Replace the charger with the identical unit as listed in the
Parts List of this manual.
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Ŷ'RQRWGLVDVVHPEOHFKDUJHU7DNHLWWRDTXDOL¿HGVHUYLFHFHQWHUIRUFKHFNRUUHSODFHPHQW,QFRUUHFW
UHDVVHPEO\PD\UHVXOWLQDULVNRIHOHFWULFVKRFNRU¿UH
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Ŷ.HHSFRUGDZD\IURPKHDWRLOVKDUSHGJHVRUPRYLQJSDUWV'DPDJHGRUHQWDQJOHGFRUGVLQFUHDVH
the risk of electric shock. If the charger cord is damaged, replace the charger with an identical
model as listed in this manual.
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8
IMPORTANT SAFETY INSTRUCTIONS
another battery pack.
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FCC COMPLIANCE
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conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired
operation.
ŶNOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation.
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used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that of the receiver.
- Consult the dealer or an experienced radio/ TV technician for help.
SAVE THESE INSTRUCTIONS
Refer to them frequently and use them to instruct others who may use this appliance. If you loan
someone this appliance, loan them these instructions also.

9
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts Voltage
Direct Current Type or a characteristic of current
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watts Power
hrs Hours Time
Class II Construction Double-insulated construction
Safety Alert Precautions that involve your safety.
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Manual
To reduce the risk of injury, user must read and
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product.
Keep all persons and
pets at a safe distance
from the mower while
operating!
To avoid the risk of injury to bystanders keep all
persons and pets at a safe distance from the mower
while operating.
Maintain Safety
Devices
Do not open or remove safety devices while the tool
is running.
DANGER - Thrown
Debris
Remove objects that can be thrown by the blade in
any direction. Wear safety glasses.
Look Behind While
Backing
/RRNGRZQDQGEHKLQG¿UVWWRDYRLGWULSSLQJZKHQ
pulling back.
Do not mow up and
down slopes!
To avoid the risk of injury do not mow up and down
VORSHV$OZD\VPRZDFURVVVORSHV$QJOH
Keep hands and feet
clear of mower deck
and discharge opening
at all times!
Rotating blades can cause serious injury.
Keep hands and feet clear of mower deck and
discharge opening at all times. Always be sure
blade has stopped after releasing switch lever and
unplugging before removing and replacing collection
bag, cleaning, servicing, transporting or lifting the
mower.
SYMBOLS
Some of the following symbols may be used on this product. Please study them and
learn their meaning. Proper interpretation of these symbols will allow you to operate
the product better and safer.

10
SYMBOLS
SYMBOL NAME DESIGNATION/EXPLANATION
Keep hands and feet
away
Danger: Keep hands and feet away.
Cutting Width Cutting diameter
Lithium-Ion Battery
Recycling
Designates that this tool is in compliance with
lithium-ion battery recycling program requirements.
Keep Away From Water
Do not dispose of battery packs in rivers or immerse
in water.
Keep Away From Fire
Do not dispose of battery packs in explode or leak
and cause injury.
Heat Alert
Do not expose battery packs to heat in excess of
60ºC (140ºF).
Recycle Symbol
This product uses lithium-ion batteries. Local, state
or federal laws may prohibit disposal of batteries in
ordinary trash. Consult your local waste authority
for information regarding available recycling and/or
disposal options.

11
SYMBOLS
SYMBOL SIGNAL MEANING
DANGER
Indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation, which, if not
avoided, may result in minor or moderate injury.
NOTICE
(Without Safety Alert Symbol) Indicates a situation that may
result in property damage.
The following signal words and meanings are intended to explain the levels of risk
associated with this product.
SERVICE
6HUYLFHUHTXLUHVH[WUHPHFDUHDQGNQRZOHGJHDQGVKRXOGEHSHUIRUPHGRQO\E\DTXDOL¿HGVHUYLFH
technician. When servicing, use only identical replacement parts.
For troubleshooting or replacement, please call Customer Service for assistance (Toll free number
866-384-8432).
WARNING
To avoid serious personal injury, do not attempt to use this product until you read thoroughly and
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,I\RXGRQRWXQGHUVWDQGWKHZDUQLQJVDQGLQVWUXFWLRQVLQWKH2SHUDWRU¶V0DQXDOGRQRWXVHWKLV
product. Call Customer Service for assistance (Toll free number 866-384-8432).

12
KNOW YOUR LAWN MOWER
3
4
5
7
17
16
15
14
13
12
10
11
20
9
8
1
2
6
19
18
21

13
KNOW YOUR LAWN MOWER
Components
1.Start/Stop Bale Switch
2.Foam Grip
3.Upper Handle
4.Locking Knob (X4)
5.Lower Handle
6.Grass Collection Bag
7.Cutting Height
Adjustment Lever
8.Rear Wheel
9.Deck
10.Safety Key (Inside the Battery
Pack Compartment)
11.Front Wheel
12.Battery Compartment Cover
13.Carry Handle
14.Safety Flap
15.Cable Clip (X2)
16.Control Cable
17.Safety Switch Button
18.Mulching Plug
19.Battery Pack (X2)
20.Battery Charger
Indicators
21.Battery Charger
KNOW YOUR LAWN MOWER
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Manual as well as a knowledge of the project you are attempting. Before use of this product, familiarize
yourself with all operating features and safety rules.

14
ASSEMBLY
UNPACKING
This product requires assembly.
ŶCarefully remove the product and any accessories from the box. Make sure that all items listed in
the packing list are included.
ŶInspect the product carefully to make sure no breakage or damage occurred during shipping.
ŶDo not discard the packing material until you have carefully inspected and satisfactorily operated
the product.
ŶIf any parts are damaged or missing, please call Customer Service (Toll free number 866-384-
8432).
YOU WILL NEED (ITEMS NOT SUPPLIED)
ŶSuitable Personal Protective Equipment
PACKING LIST
(1) Mower
(1) Safety Key (Attached inside the Battery Pack Compartment of Mower)
(1) Mulching Plug - Comes installed from factory at rear of mower
(1) Grass Collection Bag Assembly
(1) Upper Handle Assembly
(2) Lower Handle Assembly
(2) Cable Clips
(2) Locking Knobs
(2) Washers
(2) Bolts
(1) 24V Lithium-ion Battery Charger
(2) 24V 4.0Ah Lithium-ion Battery Packs
2SHUDWRU¶V0DQXDO
NOTE: The safety key must be installed for mower to operate.
DO NOT FORCE IT!

15
ASSEMBLY
WARNING
If any parts are damaged or missing do not operate this product until the parts are replaced. Failure to
heed this warning could result in serious personal injury.
Do not attempt to modify this product or create accessories not recommended for use with this
SURGXFW$Q\VXFKDOWHUDWLRQRUPRGL¿FDWLRQLVPLVXVHDQGFRXOGUHVXOWLQDKD]DUGRXVFRQGLWLRQ
leading to possible serious personal injury, and will void the warranty.
Do not connect power supply until assembly is complete. Failure to comply could result in accidental
starting and possible serious personal injury.
Never operate the mower without the proper safety devices in place and working. Never operate the
mower with damaged safety devices. Failure to heed this warning can result in serious personal injury.
ASSEMBLING THE LOWER HANDLES
1. Remove the pre-installed locking knobs (2) and washers (2) from the mower housing.
2. Insert the lower handle into the bolts on the lawn mower housing. The lower handle marked with
WKHOHWWHU5¿WVRQWKHULJKWVLGHRIWKHXQLWDQGWKHKDQGOHPDUNHGZLWKWKHOHWWHU/¿WVRQWKHOHIW
side of the unit. Adjust the lower handles to the desired operating position. There are three possible
positions . Fasten the handle by placing the washer over the support pin, followed by the
ORFNLQJNQREDQGWXUQWKHORFNLQJNQREFORFNZLVHWRWLJKWHQ'RQRWXVHH[FHVVLYHIRUFHWKLVPD\
damage the knobs (Fig. 1).
Fig. 1
Locking Knob
Washer
Bolt

16
ASSEMBLY
ASSEMBLING THE UPPER HANDLE
1. Fix the upper handle using the bolts, washers and the locking knobs as shown in Fig. 2, and turn
the locking knobs clockwise to tighten (Fig. 2). The handle can be adjusted to 2 different height
positions.
2. Secure the control cable with the cable clips (Fig. 3).
Fig. 3
Locking
Knob
Control
Cable
Washer
Bolt
Cable Clip
Fig. 2
Fig. 4
Notches
Rods
INSTALLING/REMOVING THE GRASS COLLECTION BAG
NOTE: 7KHVDIHW\ÀDSLVVSULQJRSHUDWHG(QVXUH\RXKDYHD¿UPJULSZKHQRSHQLQJDQGFORVLQJWRDYRLG
personal injury.
NOTE: When using the grass collection bag, do not install the mulching plug. The mulching plug MUST be
removed prior to installing grass collection bag.
Installing the grass collection bag:
/LIWWKHUHDUVDIHW\ÀDSDQGKROGLWLQSRVLWLRQ)LJ
2. Lift the grass collection bag by its handle, and align the rods of grass collection bag with the
QRWFKHVXQGHUUHDUVDIHW\ÀDS)LJ
5HOHDVHWKHUHDUVDIHW\ÀDS
0DNHVXUHERWKURGVDUH¿UPO\VHDWHGRQWKHQRWFKHVDQGWKHVDIHW\ÀDSUHVWV¿UPO\DJDLQVWWKHWRS
of the grass collection bag.
Mulching plug must be removed
prior to installing grass collection bag

17
ASSEMBLY
Removing the grass collection bag:
/LIWWKHUHDUVDIHW\ÀDSDQGKROGLWLQSRVLWLRQ
2. Lift the grass collection bag by its handle, and unhook the grass collection bag from the mower.
5HOHDVHWKHUHDUVDIHW\ÀDS
NOTE: Under normal usage, bag material is subject to wear. To reduce the risk of injury, frequently inspect the
collection bag and replace if there are any signs of wear or deterioration.
ADJUSTING THE CUTTING HEIGHT
'RQRWDWDQ\WLPHPDNHDQ\DGMXVWPHQWWRWKHODZQPRZHUZLWKRXW¿UVWVWRSSLQJWKHPRWRUDQGUHPRYLQJWKH
safety key. Keep your feet away from the mower deck when adjusting its height.
When shipped, the rear wheels on the mower are set to a low-cutting position. Before using the mower for the
¿UVWWLPHDGMXVWWKHFXWWLQJSRVLWLRQWRWKHKHLJKWEHVWVXLWHGIRU\RXUODZQ7KHPRZHUFDQEHVHWWRFXWWLQJ
heights between 1.4" (35 mm) and 3" (75 mm). Choose the proper cutting height according to the types and
conditions of the grass.
To set the cutting height:
1. To raise the cutting height, grasp the cutting height adjustment lever and move it toward the back of
the mower (Fig. 5).
2. To lower the cutting height, grasp the cutting height adjustment lever and move it toward the front of
the mower (Fig. 5).
WARNING
1
2
3
4
5
Fig. 5

18
ATTACHING/REMOVING THE MULCHING PLUG
'RQRWDWDQ\WLPHPDNHDQ\DGMXVWPHQWWRWKHODZQPRZHUZLWKRXW¿UVWVWRSSLQJWKHPRWRUDQGUHPRYLQJWKH
safety key. Do not attach the grass collection bag and the mulching plug at the same time.
NOTE: The mulching plug MUST be removed if grass collection bag is used during mowing operation. The
mulching plug prevents grass from being collected by blocking the collection chute. This allows the grass
clippings to be deposited back on the lawn during cutting.
/LIWWKHVDIHW\ÀDSDQGGHWDFKWKHJUDVVFROOHFWLRQEDJ
/LIWWKHVDIHW\ÀDSDQGKROGLWLQSRVLWLRQ,QVHUWWKHPXOFKLQJSOXJLQWRWKHUHDUGLVFKDUJHFKXWH
(Fig. 6). Ensure the locking button snaps into place, as picture shown (Fig. 7).
3. Press the locking button to release and remove the mulching plug (Fig. 8).
WARNING
ASSEMBLY
Fig. 7
Fig. 8
Fig. 6

19
ư
ƯƯ
ASSEMBLY
INSTALLING/REMOVING THE BATTERY PACKS
If any parts are broken or missing, do not attempt to install the battery packs to the mower or operate the
mower until the broken or missing parts are replaced. Failure to do so could result in serious injury. Do not
install the batteries and/or the safety key before the product is completely assembled.
NOTE: Both batteries should be installed into the compartments in order to start the mower.
To install battery packs:
1. Make sure both batteries are fully charged.
2. Open the plastic battery compartment cover on top of the mower deck.
3. Align the raised ribs on the mower with the grooves in the battery pack, and then insert the battery packs
into the compartment (Fig. 9).
4. Push the battery packs until you hear a “click”.
5. Close the battery compartment cover.
6. Your product is now ready to be used.
NOTE: 0DNHVXUHWKDWWKHEDWWHU\SDFNV¿UPO\VQDSLQWRSODFHDQGDUHVHFXUHGWRWKHPRZHUEHIRUHVWDUWLQJ
operation.
To remove battery packs:
1. Stop the lawn mower. Lift the battery compartment cover and remove the safety key.
3UHVVWKHUHOHDVHEXWWRQRQWKHEDWWHU\SDFNJUDVSWKHEDWWHU\SDFN¿UPO\DQGSXOORXWRIWKHEDWWHU\
compartment. Remove the second battery in the same way (Fig. 10).
3. Close the battery compartment cover.
WARNING
Fig. 9
Fig. 10
Battery
Compartment
Cover

20
BATTERY PACK AND CHARGER
BATTERY CHARGING
1. Use only with 24V LawnMaster
®
EDWWHU\FKDUJHUV7KHEDWWHU\FKDUJHUVXSSOLHGLVVSHFL¿FDOO\GHVLJQHGIRU
the lithium-ion battery used in this tool.
2. Check the power voltage! Battery chargers operate on 120V.
3. The battery is charged between 40°F (4°C) and 100°F (38°C). This ensures an optimum battery service
life.
4. Protect the batteries from heat, from continuous exposure to sun and keep away from radiation or other
heat sources. Do not leave the batteries in the mower in direct sunlight over long periods.
5. The batteries are supplied partially charged. To ensure full capacity of each battery, charge the batteries
EHIRUHXVLQJWKHWRROIRUWKH¿UVWWLPH7KHOLWKLXPLRQEDWWHULHVFDQEHFKDUJHGDWDQ\WLPHZLWKRXWUHGXFLQJ
their service life. Interrupting the charging procedure does not affect the batteries.
LED CHARGER STATUS
1. If batteries are not inserted into the charger, continuous red LED lights indicate that the outlet plug is
plugged into an outlet socket and the battery charger is ready for operation.
2. Charging: Fashing green LEDs RQWKHFKDUJHULQGLFDWHWKDWEDWWHULHVDUHFKDUJLQJQRUPDOO\7KH/('¶V
ÀDVKLQJIUHTXHQF\LV+]
3. Charged: Continuous green LEDs on the charger indicate that batteries are ready for use.
4. Technical Issue: Flashing red LED lights on the charger indicate that batteries have a charging problem
or might be defective.
a) One possible condition is the battery temperature is lower than 0°C. As soon as the permitted
temperature is reached, the battery charger will automatically switch to charging.
E,IWKHWHPSHUDWXUHUDQJHLVFRUUHFWDQGÀDVKLQJUHG/('OLJKWFRQWLQXHVWKHQUHPRYHDQGUHLQVWDOOWKH
battery pack. If the LED status repeats a second time, try to charge another identical battery. If the battery
charges normally, dispose of the defective battery pack (see Environmental Safe Battery Disposal
section).
F,IWKHÀDVKLQJUHGOLJKWFRQWLQXHVDIWHULQVWDOOLQJWKHVHFRQGEDWWHU\WKHFKDUJHUPD\EHGHIHFWLYH
Replace with a new one.
5. Flashing green LED OLJKWVRQWKHFKDUJHUWKH/('¶VÀDVKLQJIUHTXHQF\+]LVIDVWHUWKDQFKDUJLQJ
normally (1Hz)), which indicates the battery temperature is higher than 50°C. As soon as the permitted
temperature is reached, the battery charger will automatically switch to charging.
6. After continuous or repeated charging cycles without interruption, the charger may warm up. This is normal
and does not indicate a technical defect of the battery charger.

21
BATTERY PACK AND CHARGER
The indicator lights on the charger show the charger status:
BATTERY LED PANEL
1. The panel consists of 4 LEDs on the battery. Press and hold the button, then release it, the LEDs will show
you the charge levels.
7KHEDWWHU\¶VFKDUJHOHYHOFDQEHFKHFNHGHLWKHUZKHQWKHEDWWHU\LVDWWDFKHGRQWKHPDFKLQHRUUHPRYHG
from the machine.
SYMBOL INDICATOR LIGHTS STATUS
Red, continuous. Connected to power supply .
Green, blinking.
ÀDVKLQJIUHTXHQF\+]
Charging.
Green, blinking.
ÀDVKLQJIUHTXHQF\+]
Battery is overheated.
Green, continuous. Fully charged.
Red, blinking.
ÀDVKLQJIUHTXHQF\+]
Charging problem:
See Technical Issue above.
LEDs on Battery
(Continuous
Lighting)
Battery Capacity
4 LEDs (inc 2 green)
Fully charged
3 LEDs (inc 1 green)
2 LEDs (orange & red)
1 LEDs (red only)
5HFKDUJHUHTXLUHG

22
BATTERY PACK AND CHARGER
CHARGING THE BATTERY PACK
If any part of the charger is missing or damaged, do not operate it! Replace the charger with a new one.
Failure to heed this warning could result in possible serious injury.
Check the voltage! The voltage must comply with the information on the rating label.
1. Align the slot of the battery pack with the rail on the charger. Slide the slot onto the rail until the battery
pack secures into place. Connect the second battery in the same way (Fig. 11).
2. Connect the charger to the power supply.
$OORZVXI¿FLHQWFKDUJLQJWLPHVHH6SHFL¿FDWLRQVDQGWKHQGLVFRQQHFWWKHFKDUJHUIURPWKHSRZHUVXSSO\
4. Press the release buttons on the battery packs and remove them from the charger.
NOTE: It is normal for the battery pack and the charger to become warm (but not hot) during charging
process. If the battery does not charge properly, check to make sure the electrical outlet is operational. Always
charge the battery before storage!
Fig. 11
WARNING

23
Ⅰ
Ⅱ
OPERATION
WARNING
Do not allow familiarity with this type of product to make you careless. Remember that a careless
IUDFWLRQRIDVHFRQGLVVXI¿FLHQWWRLQÀLFWVHULRXVLQMXU\
Always wear safety goggles or safety glasses with side shields when operating this product. Failure to
do so could result in objects being thrown into your eyes, resulting in possible serious injury.
Do not use any attachments or accessories not recommended by the manufacturer of this product.
The use of attachments or accessories not recommended can result in serious personal injury.
STARTING/STOPPING THE MOWER
1. To switch on, insert the safety key, press and hold the safety switch button and gently pull the start/
stop bale switch (Fig. 12 & 13). Once started, release the safety switch button.
2. To power off the mower, release the start/stop bale switch. Pull out the safety key if the mower is not
going to be used immediately.
WARNING
WARNING
Fig. 12 Fig. 13
Safety Key

24
OPERATION
GENERAL OPERATION
Check the product, its power cord and accessories for damage before each use. Before use, please
ensure all power connections are in good working order prior to installing the power key and battery. If
damage is present or observed, please stop and have mower serviced before use.
Do not use the product if it is damaged or shows wear.
1. Double-check that the blade is properly installed.
2. Always hold the product by its handles. Keep the handles dry to ensure safe support.
3. Switch the equipment off immediately if someone enters the work area. Always let the equipment
come to complete stop before removing the grass collection bag.
4. Do not overwork yourself. Take regular breaks to ensure you can concentrate on the work and have
full control over the product.
MOWING TIPS
1. Make sure the lawn is clear of stones, sticks, wires, and other objects that could damage the lawn
mower blades or motor. Such objects could be accidentally thrown by the mower in any direction
and cause serious personal injury to the operator and others.
2. For a healthy lawn, always cut off one-third or less of the total length of the grass.
3. When cutting heavy grass, reduce walking speed to allow for more effective cutting and a proper
discharge of the clippings.
4. Do not cut wet grass. It will stick to the underside of the deck and prevent proper mulching of grass
clippings.
5. New or thick grass may require a narrower cut.
6. Clean the underside of the mower deck after each use to remove grass clippings, leaves, dirt, and
any other accumulated debris.
7. Mow in slight overlapping rows. The most effective pattern for mowing lawns is in straight lines
along one of the sides. This will keep the rows even and ensure that the lawn is cut without missing
any spots (Fig. 14).
Fig. 14

25
MOWING ON A SLOPE (Fig. 15)
1. Slopes are a major factor related to slip and fall accidents that can result in severe injury. Mowing
on slopes requires extra caution. If you feel uneasy on a slope, do not mow it. For your safety, do
not attempt to mow slopes greater than 15 degrees.
2. Mow across the face of slopes, not up and down. Exercise extreme caution when changing direction
on slopes.
3. Watch for holes, ruts, rocks, hidden objects, or bumps which can cause you to slip or trip. Tall grass
can hide obstacles. Remove all objects such as rocks, tree limbs, etc., which could be tripped over
or thrown by the blade.
4. Always be sure of your footing. A slip and fall can cause serious personal injury. If you feel you are
losing your balance, release the start/stop bale switch immediately.
'RQRWPRZQHDUGURSRIIVGLWFKHVRUHPEDQNPHQWV\RXFRXOGORVH\RXUIRRWLQJRUEDODQFH
AFTER USE
1. Switch the product off, remove the battery packs and let it cool down.
2. Check, clean and store the product as described below.
OPERATION
Fig. 15

26
MAINTENANCE
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various
types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust,
oil, grease, etc.
WARNING
WARNING
When servicing, use only identical replacement parts. Use of any other parts may create a hazard or
cause product damage.
Always wear safety goggles or safety glasses with side shields during power tool operation. If operation
is dusty, also wear a dust mask.
WARNING
Do not use any attachments or accessories not recommended by the manufacturer of this product. The
use of attachments or accessories not recommended can result in serious personal injury.
'RQRWDWDQ\WLPHPDNHDQ\PDLQWHQDQFHWRWKHODZQPRZHUZLWKRXW¿UVWVWRSSLQJWKHPRWRUDQG
removing the safety key and battery packs. Adjust the handle bar or make other adjustments as
illustrated in the manual, if necessary or if it can make it easier for maintenance.
2. Periodically check all nuts and bolts for proper tightness to insure safe operation of the mower.
3. Remove any buildup of grass and leaves on or around the motor cover. Wipe the mower clean with
a dry cloth occasionally. Do not use water.
LUBRICATION
$OORIWKHEHDULQJVLQWKLVSURGXFWDUHOXEULFDWHGZLWKDVXI¿FLHQWDPRXQWRIKLJKJUDGHOXEULFDQWIRUWKH
life of the unit under normal operating conditions. Therefore, no further bearing lubrication is required.
At the beginning and end of each mowing season:
1. Lubricate the springs on the rear discharge door with light oil.
2. Lubricate the cutting height adjustment lever and related hardware with light oil.
3. Remove the wheels and lubricate the surface of the axle bolt and the inner surface of the wheels
with light oil.
4. Remove the blade and blade hub assembly and lubricate the motor shaft with light oil or engine oil.
See Replacing the Cutting Blade section for instructions on removing the blade.

27
REPLACING THE MOWER BLADE
NOTE: Remove safety key and batteries before performing any maintenance!
NOTE: Only use identical replacement blades. LawnMaster
®
mower blade replacement part #
111193114.
1. Stop the motor and allow the blade to come to a complete stop.
2. With the blade stopped, remove the SAFETY KEY and the BATTERIES from the mower and store
in safe location.
3. Remove the collection bag from the mower if attached.
4. Slowly turn the mower onto its side.
5. Wedge a block of wood between the blade and the mower deck in order to prevent blade from
turning while the blade nut is being removed (Fig. 16).
6. Loosen the blade nut using a wrench or socket (not provided).
7. Remove the blade nut by turning counter-clockwise, and then remove the blade.
8. Place the new blade on the shaft. Make sure it is installed with the curved ends pointing up toward
the mower deck and not down toward the ground.
7KUHDGWKHEODGHQXWRQWKHVKDIWDQG¿QJHUWLJKWHQ
10. Torque the blade nut down using a torque wrench (not provided) to ensure the bolt is properly
tightened (Fig. 17).
NOTE: Make certain all parts are replaced in the exact order in which they were removed.
WARNING
Before performing any maintenance, make sure the mower is switched off and the safety key and
batteries have been removed. Failure to heed this warning could result in serious personal injury.
WARNING
Always protect hands by wearing heavy gloves and/or wrapping the cutting edges of the blade with rags
and other material when performing blade maintenance. Failure to heed this warning could result in
serious personal injury.
MAINTENANCE

28
MAINTENANCE
Fig. 16 Fig. 17
BoltBlade
Wooden Block
SHARPENING THE BLADE
For best mowing performance, the mower blade must be kept sharp. A dull blade does not cut grass
evenly and overloads the motor. Under normal circumstances, sharpening the blade twice during the
PRZLQJVHDVRQLVXVXDOO\VXI¿FLHQW+RZHYHULI\RXUODZQKDVVDQG\VRLOPRUHIUHTXHQWVKDUSHQLQJ
may be required.
• Following the instructions in the Replacing Mower Blade section (Page 27), remove the mower
blade. DO NOT attempt to sharpen the blade while it is attached to the mower.
8VLQJD¿QHWRRWK¿OHRUVKDUSHQLQJVWRQHVKDUSHQFXWWLQJHGJHVRQERWKHQGVRIWKHEODGH
removing equal amounts of material from both ends (Fig. 18).
WARNING
When removing, inspect the blade carefully. If blade is bent or damaged, replace immediately with a
new blade. Failure to replace a bent or damaged blade could cause an accident resulting in possible
serious injury.
BALANCING THE BLADE (Fig. 19)
When sharpening, care should be taken to keep the blade balanced. An unbalanced blade will cause
excessive vibration when the mower is running. This vibration will eventually cause damage to the
mower, especially the motor.
To check the blade balance:
• Clamp a screwdriver horizontally in a vise as shown.
NOTE: If a vise is not available, a straight nail can also be used.
• Place the center hole of blade on the screwdriver (or nail) shank.
• If blade is balanced, it will remain in a horizontal position. If either end of the blade drops downward,
sharpen the heavy side until the blade is balanced.

29
MAINTENANCE
STORING THE MOWER
1. Remove mower safety key and batteries.
2. Turn mower on its side and clean grass clippings that have accumulated on the underside of the
mower deck.
3. Wipe the mower clean with a dry cloth.
4. Check all nuts, bolts, knobs, screws, fasteners, etc., for tightness.
5. Inspect moving parts for damage, breakage, and wear. Have repairs made on any damaged or
missing parts.
6. Store mower indoors in a clean, dry place out of the reach of children.
7. Do not store near corrosive materials such as fertilizer or rock salt. To lower the handle before
storing:
- Remove and clean the grass collection bag.
- Fully loosen the handle locking knobs on the sides of the handle and fold the upper and lower
handles down (Fig. 20).
- To save the space, the grass collection bag can be put on the mower.
Fig. 20
Fig. 18 Fig. 19

30
MAINTENANCE
CLEANING THE MOWER
WARNING
To reduce the risk of electric shock, do not expose the mower to water.
WARNING
'RQRWDWDQ\WLPHPDNHDQ\PDLQWHQDQFHWRWKHODZQPRZHUZLWKRXW¿UVWVWRSSLQJWKHPRWRUDQG
removing the safety key and battery pack.
The underside of mower deck should be cleaned after each use as grass clippings, leaves, dirt and
other debris will accumulate causing rust and corrosion.
• Remove any buildup of grass and leaves on or around the motor cover (do not use water). Wipe the
mower clean with a dry cloth occasionally.
• If debris build up on the underside of the unit while in use, stop the motor and remove the battery
pack. Tilt the mower forward, or on its side, and clean.
BATTERY PACK MAINTENANCE
1. Fully charge the batteries before placing in storage.
2. Recharge the battery packs whenever there is a noticeable reduction in the performance. Do not
allow the battery packs to become completely discharged.
3. Do not recharge a battery pack that is already fully charged. Overcharging shortens battery life.
4. Once the battery packs are fully charged, remove the batteries from the charger and disconnect
charger from the outlet.
5. Do not store the battery packs on the tool or on the charger.
6. If the battery pack is hot, allow it to cool down before recharging.
CHARGER MAINTENANCE
1. Keep the charger clean and clear of debris. Do not allow foreign material into the recessed cavity or
on the contacts. Wipe with a dry cloth. Do not use solvents, water, or place in wet conditions.
2. Always unplug the charger when the battery packs are not installed on the charger.
3. Do not store the charger in excessive heat. Do not use in direct sunlight.
4. Disconnect the charger from the AC power outlet when not in use and once batteries have reached
a full charge.

31
ENVIRONMENTAL SAFE BATTERY DISPOSAL
The following toxic and corrosive materials are in the batteries used in this battery pack:
lithium-ion, a toxic material.
WARNING
$OOWR[LFPDWHULDOVPXVWEHGLVSRVHGRILQDVSHFL¿FPDQQHUWRSUHYHQWFRQWDPLQDWLRQRIWKH
environment. Before disposing of damaged or worn out lithium-ion battery packs, contact your local
ZDVWHGLVSRVDODJHQF\RUWKHORFDO(QYLURQPHQW3URWHFWLRQ$JHQF\IRULQIRUPDWLRQDQGVSHFL¿F
instructions.
WARNING
If the battery pack cracks or breaks, with or without leaks, do not recharge it and do not use it. Dispose
of it and replace with a new battery pack.
DO NOT ATTEMPT TO REPAIR IT!
7RDYRLGLQMXU\DQGULVNRI¿UHH[SORVLRQRUHOHFWULFVKRFNDQGWRDYRLG
damage to the environment:
• Cover the battery terminals with heavy-duty adhesive tape.
• DO NOT attempt to remove or destroy any of the battery pack components.
• DO NOT attempt to open the battery pack.
• If a leak develops, the released electrolytes are corrosive and toxic. DO NOT get the solution in
eyes or on skin, and do not swallow it.
• DO NOT place damaged or defective batteries in your regular household trash.
• DO NOT incinerate.
• DO NOT SODFHEDWWHULHVZKHUHWKH\ZLOOEHFRPHSDUWRIDQ\ZDVWHODQG¿OORUPXQLFLSDOVROLGZDVWH
stream.
7DNHEDWWHULHVWRDFHUWL¿HGUHF\FOLQJRUGLVSRVDOFHQWHU

32
TROUBLESHOOTING
6XVSHFWHGPDOIXQFWLRQVDUHRIWHQGXHWRFDXVHVWKDWWKHXVHUFDQ¿[WKHPVHOYHV
Therefore check the product using this section. In most cases the problem can be solved quickly.
WARNING
Only perform the steps described within these instructions!
All further inspection, maintenance and repair work must be performed by an authorized service center
RUDVLPLODUO\TXDOL¿HGVSHFLDOLVWLI\RXFDQQRWVROYHWKHSUREOHP\RXUVHOI
Problem Possible Cause Solution
Mower fails to start.
The safety key is not
installed.
Install the safety key securely.
The batteries are not
installed correctly.
Check connection of batteries to mower.
The batteries are not
charged or power is too
low.
Charge the batteries.
The blade is jammed.
6WRSPRZHUDQGUHPRYHEDWWHULHV
check for grass and debris under the
deck, clean to make blade free to move.
The batteries are defective
or old.
Replace the batteries (call the toll free
helpline, at 866-384-8432).
The switch is defective.
Replace the switch (call the toll free
helpline, at 866-384-8432).
Mower cuts unevenly.
Rough or uneven lawn. Check the mowing area.
Cutting height not set
properly.
Set the mower at a higher position.
The blade is dull. Sharpen or replace the blade.
Mower does not mulch
properly.
Wet grass clippings
sticking to the underside of
the deck.
Wait until the grass dries before mowing.

33
TROUBLESHOOTING
Mower is hard to push.
High grass and low
cutting height. Rear of
mower housing and blade
dragging in heavy grass.
Raise the cutting height.
Mower vibrates overly
and makes excessive
noise.
The cutting blade is not
assembled securely.
Tighten the blade bolts.
The blade is not balanced.
Sharpen and balance the blade
following instructions in this manual (see
page 28). Or replace the blade.
The motor shaft is bent.
Stop the mower and remove the
batteries. Have the mower inspected
and repaired by an authorized service
center before restarting.

34
LAWNMASTER
®
WARRANTY

35
EXPLODED VIEW

36
PARTS LIST
Replacement parts highlighted in grey are available for after sales purchase. Replacement of repair or
LQWHUQDOSDUWVVKRXOGRQO\EHGRQHE\DTXDOL¿HGVHUYLFHSURIHVVLRQDO3OHDVHFRQWDFW\RXUDXWKRUL]HG
service dealer or Customer Service at 866-384-8432.
Key Number Drawing Number Description Quantity
1 Handle Assembly 1
2 Motor Housing 1
3 211070103 Safety Key 1
4 Reduction Gear Box Assembly 1
5 Battery Compartment Assembly 1
6 PCB Controller Assembly 1
7 211070107 Rear Wheel Assembly 2
7.1 111054104 Wheel Axle Ring 2
8 Cable Clamp 1
9 Deck 1
10 211070109 Front Wheel Assembly 2
11 Front Wheel Axle 1
12 Wheel Axle Clamp 4
13 Ballast 1
14 211002110 Blade Mounting Plate 1
15 111193114 Blade 1
16 211002111 Blade Bolt 1
17 Connection Rod 1
18 Height Adjustment Lever 1
19 111005119 Tension Spring 1
20 211070111 Safety Flap 1
21 Height Adjusment Lever Cover 1
22 Rear Wheel Axle 1
23 111308111 Lower Handle Locking Knobs 2
24 111193126 Safety Door Spring 1
25 211070113 Safety Door 1
26 Left Lower Handle 1
27 Right Lower Handle 1
28 111308114 Upper Handle Locking Knobs 2
29 211070116 Collection Bag 1
30 Upper Handle 1
31 Bale Switch 1
32 Switch Box Assembly 1
32.1 Switch 1
33 111001111 Cable Clips 2
34 111193134 Mulch Plug 1
35 211070119 Battery 2
36 211070120 Charger 1

37
NOTES

38
NOTES

