9.808-227.0 - F (08/11/23)
OPERATOR’S MANUAL
MODEL # ORDER #
HD 3.0/27 G Teton 1.107-398.0
HD 4.0/40 G Teton 1.107-399.0
HD 4.0/40 GE Teton 1.107-400.0
HD 3.5/35 G Teton 1.107-440.0
HD 3.0/27 GB Teton 1.107-441.0
HD 3.5/35 GB Teton 1.107-442.0
HD 4.0/40 GB Teton 1.107-443.0
HD 4.0/40 GeB Teton 1.107-444.0
HD 5.0/30 GB Teton 1.107-445.0
HD 5.0/30 GeB Teton 1.107-472.0
Karcher North America, 6398 N Kärcher Way, Aurora, CO 80019
3
CONTENTS
Model Number ______________________________
Serial Number ______________________________
Date of Purchase ___________________________
The model and serial numbers will be found on a decal attached to
the pressure washer. You should record both serial number and date
of purchase and keep in a safe place for future reference.
9.808-227.0 - Operator's Manual
Introduction & Important Safety Information ............................................ 4
Component Identication .........................................................................7
Assembly Instructions..............................................................................8
Operating Instructions .............................................................................9
Detergent and General Cleaning Techniques ..........................................11
Shutting Down And Clean-Up ..................................................................12
Storage .................................................................................................... 12
Troubleshooting For Models: HD 3.0/27 G Teton, HD 3.5/35 G Teton,
HD 4.0/40 G Teton, HD 4.0/40Ge Teton ...............................................................13
Preventative Maintenance For Models: HD 3.0/27 G Teton,
HD 3.5/35 G Teton, HD 4.0/40 G Teton, HD 4.0/40Ge Teton .....................................15
Troubleshooting For Models: HD3.0/27 GB Teton,
HD 3.5/35 GB Teton, HD 4.0/40 GB Teton, HD 4.0/40 GeB Teton,
HD 5.0/30 GB Teton, HD 5.0/30 GeB Teton .......................................................... 16
Preventative Maintenance HD3.0/27 GB Teton, HD 3.5/35 GB Teton,
HD 4.0/40 GB Teton, HD 4.0/40 GeB Teton, HD 5.0/30 GB Teton, HD 5.0/30 GeB Teton . 18
Oil Change Record .................................................................................. 19
Accessories Assembly .............................................................................20
9.808-227.0 - Operator's Manual
4
INTRODUCTION & IMPORTANT SAFETY INFORMATION
Thank you for purchasing this Pressure Washer.
We reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer. Warning information
should be emphasized and understood. If the operator
is not uent in English, the manufacturer’s instructions
and warnings shall be read to and discussed with
the operator in the operator’s native language by the
purchaser/owner, making sure that the operator com-
prehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement parts.
This machine is to be used only by trained operators.
IMPORTANT SAFETY
INFORMATION
WARNING
READ OPERATOR’S
MANUAL
THOROUGHLY
PRIOR
TO USE.
OPERATIONS
SAFETY
MAINTENANCE
WARNING: To reduce the risk of
injury, read operating instructions
carefully before using.
1. Read owner's manual thor-
oughly. Failure to follow instructions
could cause malfunction of the ma-
chine and result in death, serious
bodily injury and/or property damage.
2. Know how to stop the ma-
chine and bleed pressure quickly. Be thoroughly
familiar with the controls.
3. Stay alert — watch what you are doing.
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.
WARNING
WARNING: Keep wand, hose, and
water spray away from electric
wiring or fatal electric shock may
result.
4. All installations must comply
with local codes. Contact your electri-
cian, plumber, utility company or the
selling distributor for specic details.
WARNING
EAR PROTECTION
MUST BE WORN
WARNING: This machine exceeds
85 db appropriate ear protection
must be worn.
WARNING
USE PROTECTIVE
EYE WEAR
AND CLOTHING
WHEN OPERATING
THIS EQUIPMENT.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne and
y at high speeds. To avoid per-
sonal injury, eye, hand and foot
safety devices must be worn.
5. Eye, hand, and foot protec-
tion must be worn when using this
equipment.
6. Keep operating area clear of all persons.
WARNING
RISK OF EXPLOSION:
OPERATE ONLY WHERE
OPEN FLAME OR TORCH
IS PERMITTED
WARNING: Flammable liquids can
create fumes which can ignite,
causing property damage or se-
vere injury.
WARNING: Risk of explosion —
Operate only where open ame or
torch is permitted.
WARNING
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING: Risk of re — Do not
add fuel when the product is op-
erating or still hot.
WARNING: Do not use gasoline
crankcase draining or oil contain-
ing gasoline, solvents or alcohol.
Doing so will result in re and/or
explosion.
WARNING: Risk of re — Do not Spray ammable
liquids.
9.808-227.0 - Operator's Manual
5
WARNING
TRIGGER GUN KICKS
BACK — HOLD WITH
BOTH HANDS
WARNING: Grip cleaning wand
securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.
12. Never make adjustments on
machine while in operation.
13. Be certain all quick coupler
ttings are secured before using pressure washer.
WARNING
RISK OF INJECTION
OR SEVERE INJURY
TO PEOPLE
OR ANIMALS. KEEP
CLEAR OF NOZZLE.
WARNING: High pressure devel-
oped by these machines will cause
personal injury or equipment dam-
age. Keep clear of nozzle. Use
caution when operating. Do not
direct discharge stream at people,
or severe injury or death will result.
WARNING
PROTECT FROM
FREEZING
WARNING: Protect machine from
freezing.
14. To keep machine in best
operating conditions, it is important
you protect machine from freezing.
Failure to protect machine from
freezing could cause malfunction
of the machine and result in death,
serious bodily injury, and/or property
damage. Follow storage instructions specied in
this manual.
15. Inlet water must be clean fresh water and no hotter
then 90°F.
WARNING
RISK OF
ASPHYXIATION.
USE THIS PRODUCT
ONLY IN A WELL
VENTILATED AREA.
WARNING: Risk of asphyxiation.
Use this product only in a well
ventilated area.
16. Avoid installing machines in
small areas or near exhaust fans.
Adequate oxygen is needed for
combustion or dangerous carbon
monoxide will result.
17. Manufacturer will not be liable
for any changes made to our standard machines or
any components not purchased from us.
18. The best insurance against an accident is precau-
tion and knowledge of the machine.
IMPORTANT SAFETY INFORMATION
WARNING: This product contains chemicals known
to the state of California to cause cancer and birth
defects or other reproductive harm. Operation of
this equipment may create sparks that can start
res around dry vegetation. A spark arrestor may
be required. The operator should contact: Local
re agencies for laws or regulations relating to re
prevention requirements.
7. Allow engine to cool for 1-2 minutes before refuel-
ing. If any fuel is spilled, make sure the area is dry
before testing the spark plug or starting the engine.
(Fire and/or explosion may occur if this is not done.)
Gasoline engines on mobile or portable equipment
shall be refueled:
a. outdoors;
b. with the engine on the equipment stopped;
c. with no source of ignition within 10 feet of the
dispensing point; and
d. with an allowance made for expansion of the fuel
should the equipment be exposed to a higher ambi-
ent temperature.
In an overlling situation, additional precautions are
necessary to ensure that the situation is handled in a
safe manner.
8. When in use , do not place machine near ammable
objects as the engine is hot.
9. Do not store or use gasoline near this machine.
WARNING
RISK OF INJURY.
HOT SURFACES
CAN CAUSE BURNS
WARNING: Risk of injury. Hot sur-
faces can cause burns. Use only
designated gripping areas of spray
gun and wand. Do not place hands
or feet on non-insulated areas of
the pressure washer.
10. Transport/Repair with fuel tank EMPTY or with fuel
shut-o valve OFF.
11. To reduce the risk of injury, close supervision is
necessary when a machine is used near children.
Do not allow children to operate the pressure
washer. This machine must be attended during
operation.
9.808-227.0 - Operator's Manual
6
WARNING
RISK OF INJURY
FROM FALLS WHEN
USING LADDER.
WARNING: Be extremely careful
when using a ladder, scaolding
or any other relatively unstable
location. The cleaning area should
have adequate slopes and drain-
age to reduce the possibility of a
fall due to slippery surfaces.
19. Do not allow acids, caustic or
abrasive uids to pass through the
pump.
20. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.
21. Machines with shut-o spray gun should not be
operated with the spray gun in the o position for
extensive periods of time as this may cause dam-
age to the pump.
22. Protect discharge hose from vehicle trac and
sharp objects. Inspect condition of high pressure
hose before using or bodily injury may result.
23. Before disconnecting discharge hose from water
outlet. Open the spray gun to relieve pressure.
24. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
IMPORTANT SAFETY INFORMATION
25. Do not operate this machine when fatigued or under
the inuence of alcohol, prescription medications,
or drugs.
WARNING
: Wear eye, hand and skin protection
when handling or connecting battery.
Batteries gen e r a t e e x p l o s i v e g a s e s d u r i n g n o r m a l
battery operation.
DO NOT exp o s e t h e b a t t e r y t o a m e o r s p a r k s a s
these gases may ignite.
B a t t e r y u i d i s h i g h l y a c i d i c . I f b a t t e r y u i d c o n
tacts skin or clothing, wash immediately with soap
and water. If battery uid enters eye, immediately
ood eye with running cold water for at least 15
minutes and get immediate medical attention.
Follow the maintenance instructions
specied in the manual.
9.808-227.0 - Operator's Manual
7
Pump — Develops high pressure.
Starter Grip — Used for starting the engine manually.
Spray Gun — Controls the application of water and
detergent onto cleaning surface with trigger device.
Includes safety latch.
Unloader valve — Safety device which allows pressure
tu be released when spray gun is closed
Detergent Injector — Allows you to siphon and mix
detergents. (Not included with machine)
Wand — Must be connected to the spray gun.
High Pressure Hose — Connect one end to water
pump discharge nipple and the other end to spray gun.
Pump Protector — Cycles fresh cool water through
pump when recirculating water reaches 140°F.
Note: If trigger on spray gun is released for more
than 1-2 minutes, water will leak from valve. Warm
water will discharge from pump protector onto foor.
This system prevents internal pump damage.
COMPONENT IDENTIFICATION
Starter Grip
Trigger
Spray Gun
High Pressure
Hose
Straight
Through Wand
Pressure
Nozzle
Garden Hose
(not included)
Inlet
Screen
Unloader
Detergent
Bucket
(not included)
Hose
Detergent
ENGINE
Pump
Detergent
Injector
Pump
Pump
protector
9.808-227.0 - Operator's Manual
8
Safety
Latch
Spray
Gun
High
Pressure Hose
STEP 1: Attach the high pressure
hose to the spray gun using teon
tape on hose threads.
ASSEMBLY INSTRUCTIONS
Wand
Spray
Gun/Wand
STEP 2: Attach wand to spray gun
using teon tape on wand threads.
Wand
Coupler
Pressure
Nozzle
STEP 3: Pull spring-loaded collar of
the wand coupler back to insert your
choice of pressure nozzle.
Pressure
Nozzle
Wand
Coupler
Coupler
Collar
STEP 4: Release the coupler collar
and push the nozzle until the collar
clicks. Pull the nozzle to make sure
it is seated properly.
Discharge
Nipple
High
Pressure
Hose
Coupler Collar
STEP 5: Connect the high pressure
hose to the discharge nipple. Push
coupler collar forward until secure.
Cold
Water
Source
Garden
Hose
STEP 6: Connect garden hose to
the cold water source.
Pump
Water Inlet
Garden
Hose
STEP 7: Check inlets filters, re-
move debris, then connect the
garden hose to pump water inlet.
CAUTION: Do not run the pump
without water or pump damage
will result.
STEPS 8 and 9 for Electric Start Machines Only (HD 4.0/40 Ge Teton and HD 4.0/40 GeB Teton)
Box Strap
Battery
Box Lid
Red Wire From
the motor starter
12 Volt
Battery
Battery
Terminal
Battery Box
Black Wire From
ground
STEP 8: Place battery in battery box. Use a 12 V
battery with a minimum capacity of 24AH.
STEP 9: To reduce the possibility of sparking attach
the wires to the battery in the following order.Refere
to image aside. First attach the red wire to the posi-
tive “+" terminal of battery and the black wire to the
negative “-" terminal of the battery.To disconnect the
battery remove the wires in the opposite order as
installed. Install battery box cover and fasten in place.
9.808-227.0 - Operator's Manual
9
Oil Dipstick
STEP 1: Check engine oil level. Oil level should be level with the bottom
of the oil ller neck. Be sure the machine is level when checking the oil
level. (Refer to the engine's operating manual included with machine.) We
recommend that the oil be changed after the rst 5 hours of use, then once
every 50 hours. Note: Improper oil levels will cause low oil sensor to shut
o engine. IMPORTANT! Do not run engine with high or low oil levels
as this will cause engine damage.
OPERATING INSTRUCTIONS
Dipstick
Oil Window
STEP 2: Remove shipping cap and
install oil dipstick. Check pump oil
level by using dipstick or observe
oil level in oil window (if equipped).
Use 40 wt. non detergent oil.
Gas
Tank
STEP 3: Fill gas tank with unleaded
gasoline. Do not use leaded gaso-
line.
Cold
Water
Source
Garden
Hose
STEP 4: Connect garden hose to
the cold water source and turn water
on completely. Never use hot water.
STEP 5: Trigger the spray gun to
eliminate trapped air then wait for a
steady ow of water to emerge from
the spray nozzle.
Fuel
Valve
Choke
O
On
STEP 6: Slide the fuel valve lever to the "ON" position.
When the engine is not in use, leave the fuel valve in
the "OFF" position.
Choke
Lever
Choke
Run
Fuel
Valve
STEP 7: Move the choke lever to the "Choke" posi-
tion (on a warm engine, leave the choke lever in the
run position).
9.808-227.0 - Operator's Manual
10
OPERATING INSTRUCTIONS
On-O
Switch
STEP 8: Turn the engine switch to "On" position.
STEP 9: Pull the starter grip. If the engine fails to start
after 2 pulls, squeeze the trigger gun to release pressure
and repeat step. Return starter gently. After the engine
warms up enough to run smoothly, move choke to run
position and throttle to fast position.
CAUTION: Small engines may kick back. Do not
hold pull starter grip tightly in hand.
Safety
Latch
WARNING! Never replace
nozzles without engaging the
safety latch on the spray gun
trigger.
NOZZLES
The four color-coded quick connect nozzles provide a wide array of spray
widths from 15° to 40° and are easily accessible when placed in the conve-
nient rubber nozzle holder, which is provided on the front of the machine.
NOTE: For a more gentle rinse, select the white 40° or green 25° nozzle.
To scour the surface, select the yellow 15° nozzle. To apply detergent
select the black nozzle.
9.808-227.0 - Operator's Manual
11
DETERGENT AND GENERAL CLEANING TECHNIQUES
WARNING
WARNING: Some detergents may
be harmful if inhaled or ingested,
causing severe nausea, fainting or
poisoning. The harmful elements
may cause property damage or
severe injury.
STEP 1: Connect the optional detergent injector to
discharge nipple on machine. Connect high pressure
hose to injector with quick coupler. (Check to make sure
locking coupler sleeves are in proper position before
applying water pressure).
Soap Nozzle
Discharge
Nipple
Strainer
Quick
Coupler
High
Pressure
Hose
Detergent
Injector
STEP 2: Use detergent designed spe-
cically for pressure washers. House-
hold detergents could damage the
pump. Prepare detergent solution as
required by manufacturer. Fill a con-
tainer with pressure washer detergent.
Place lter end of detergent suction
tube into detergent container.
STEP 3: With safety latch on spray gun
engaged, secure black detergent
nozzle into quick coupler. NOTE:
Detergent cannot be applied using
yellow, green or white nozzles.
STEP 4: With the engine running, pull
trigger to operate machine. Liquid detergent is drawn
into the machine and mixed with water. Apply detergent
to work area. Do not allow detergent to dry on surface.
IMPORTANT: You must ush the detergent injection
system after each use by placing the suction tube
into a bucket of clean water, then run the pressure
washer in low pressure for 1-2 minutes.
THERMAL PUMP PROTECTION
If you run the engine on your pressure washer for 1-2
minutes without pressing the trigger on the spray gun,
circulating water in the pump can reach high tempera-
tures. When the water reaches this temperature, the
pump protector engages and cools the pump by dis-
charging the warm water onto the ground. This thermal
device prevents internal damage to the pump.
CLEANING TIPS
Pre-rinse cleaning surface with fresh water. Place de-
tergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit
your work area to sections approximately 6 feet square
and always apply detergent from bottom to top). Allow
detergent to remain on surface 1-3 minutes. Do not al-
low detergent to dry on surface. If surface appears to
be drying, simply wet down surface with fresh water. If
needed, use brush to remove stubborn dirt. Rinse at
high pressure from top to bottom in an even sweep-
ing motion keeping the spray nozzle approximately
1 foot from cleaning surface. Use overlapping strokes
as you clean and rinse any surface. For best surface
cleaning action spray at a slight angle.
Recommendations:
• Before cleaning any surface, an inconspicuous
area should be cleaned to test spray pattern and
distance for maximum cleaning results.
• If painted surfaces are peeling or chipping, use
extreme caution as pressure washer may remove
the loose paint from the surface.
• Keep the spray nozzle a safe distance from the
surface you plan to clean. High pressure wash a
small area, then check the surface for damage. If
no damage is found, continue to pressure washing.
CAUTION - Never use:
• Bleach, chlorine products and other corrosive
chemicals
• Liquids containing solvents (i.e., paint thinner,
gasoline, oils)
• Tri-sodium phosphate products
• Ammonia products
• Acid-based products
These chemicals will harm the machine and will damage
the surface being cleaned.
RINSING
It will take a few seconds for the detergent to clear.
Apply safety latch to spray gun. Remove black soap
nozzle from the quick coupler. Select and install the
desired high pressure nozzle. NOTE: You can also stop
detergent from owing by simply removing detergent
siphon tube from bottle.
9.808-227.0 - Operator's Manual
12
SHUTTING DOWN AND CLEAN-UP
STEP 1: Remove detergent suc-
tion tube from container and insert
into one gallon of fresh water. Slide
nozzle forward for low pressure or
to connect black detergent nozzle.
Pull trigger on spray gun and siphon
water for one minute.
CAUTION: Always store your pressure washer in a
location where the temperature will not fall below
32°F (0°C). The pump in this machine is susceptible
to permanent damage if frozen. FREEZE DAMAGE
IS NOT COVERED BY WARRANTY.
1. Stop the pressure washer, squeeze spray gun trig-
ger to release pressure.
2. Detach water supply hose and high pressure hose.
3. Turn on the machine for a few seconds, until re-
maining water exits. Turn engine o immediately.
4. Drain the gas and oil from the engine.
5. Do not allow high pressure hose to become kinked.
6. Store the machine and accessories in a room which
does not reach freezing temperatures.
CAUTION: Failure to follow the above directions will
result in damage to your pressure washer.
When the pressure washer is not being operated or is
being stored for more than one month, follow these
instructions:
1. Replenish engine oil to upper level.
2. Drain gasoline from fuel tank, fuel line, fuel valve
and carburetor.
3. Pour about one teaspoon of engine oil through
the spark plug hole, pull the starter grip several
times and replace the plug. Then pull the starter
grip slowly until you feel increased pressure which
indicates the piston is on its compression stroke and
leave it in that position. This closes both the intake
and exhaust valves to prevent rusting of cylinder.
4. Cover pressure washer and store in a clean, dry
place that is well ventilated away from open ame
or sparks. NOTE: The use of a fuel additive, such
as STA-BIL
®
, or an equivalent, will minimize the for-
mulation of fuel deposits during shortage. Such ad-
ditives may be added to the gasoline in the fuel tank
of the engine, or to gasoline in a storage container.
After Extended Storage
CAUTION: Prior to restarting, thaw out any
possible ice from pressure washer hoses,
spray gun or wand.
Engine Maintenance
During the winter months, rare atmospheric conditions
may develop which will cause an icing condition in the
carburetor. If this develops, the engine may run rough,
lose power and may stall. This temporary condition can
be overcome by deecting some of the hot air from the
engine over the carburetor area. NOTE: Refer to the
engine manufacturer's manual for service and mainte-
nance of the engine.
STORAGE
On-O
Switch
STEP 2: Turn o the engine.
STEP 3: Turn o water supply.
STEP 4: Press trig-
ger to release water
pressure.
Pump
Water Inlet
STEP 5: Disconnect the garden
hose from the water inlet on the
machine.
Discharge Nipple
STEP 6: Disconnect the high
pressure hose from discharge
nipple.
Safety
Latch
STEP 7: Engage
the spray gun safe-
ty lock.
9.808-227.0 - Operator's Manual
13
TROUBLESHOOTING
For Models: HD 3.0/27 G Teton, HD 3.5/35 G Teton, HD 4.0/40 G Teton,
HD 4.0/40Ge Teton
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Insucient water supply. Closed
faucet. Inlet hose kinked
Use larger garden hose; clean inlet water
screen. Open faucet.
Clogged inlet hose strainer Check plumbing system for leaks. Retape
leaks with teon tape.
Faulty or mis-adjusted unloader
valve
Adjust unloader for proper pressure. Install
repair kit when needed. Call local distributor.
Worn packing in pump Call Dealer Customer Support.
Machine has been stored in freez-
ing temperatures
Thaw out machine completely, including
hose, spray gun and wand.
Slow engine RPM Call local distributor.
FLUCTUATING
PRESSURE
Worn or dirty pump valves Call local distributor.
Nozzle is obstructed Blow out or remove debris with ne needle.
Pump sucking air, inlet hose
leaking
Check that all hoses and ttings are airtight.
Turn o machine and trigger spray gun until
a steady ow of water emerges through the
nozzle.
Insucient water supply Turn water on full force. Check garden hose
for kinks, leaks or blockage.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Replace nozzle.
Unloader valve worn Replace unloader valve.
ENGINE WILL NOT
START OR STOPS
WHILE OPERATING
Low oil shutdown Fill engine with oil.
Out of gas Fill fuel tank.
Water in gasoline Drain gas tank; ll with clean fuel.
ENGINE IS
OVERLOADED
Nozzle partially blocked Clean nozzle.
Excessive pressure from high
engine RPM
Adjust engine throttle to lower RPM.
WATER OR OIL
LEAKING FROM
BOTTOM OF PUMP
A small amount of leaking is
normal
If excessive leaking occurs, call local
distributor.
PRESENCE OF
WATER IN PUMP
OIL
Water sprayed at machine Change oil. Direct spray away from ma-
chine.
High humidity in air Check and change oil twice as often.
Piston packing worn. Oil seal worn. Call local distributor.
ENGINE OPERATES
FOR 15 MINUTES
THEN STOPS
Not enough gas or engine oil Fill tank with gas. Check oil level.
Vapor lock developed by heat of
day
Keep gas tank full to avoid vapor locking.
Obstruction in fuel lter Clean or replace fuel lter.
9.808-227.0 - Operator's Manual
14
TROUBLESHOOTING
For Models: HD 3.0/27 G Teton, HD 3.5/35 G Teton, HD 4.0/40 G Teton,
HD 4.0/40Ge Teton
PROBLEM POSSIBLE CAUSE SOLUTION
ENGINE LACKS
POWER
Dirty air lter Replace air lter.
ENGINE FALTERS Choke is opened too soon Move choke to halfway position until en-
gine runs smoothly.
WATER DRIPPING
FROM UNDER
PUMP
Piston packing worn Call local distributor.
O-Ring plunger retainer worn Call local distributor.
Cracked piston Call local distributor.
OIL DRIPPING
FROM UNDER
PUMP
Oil seal worn or damaged Call local distributor.
WATER LEAKING
FROM PUMP PRO-
TECTOR
Spray gun closed with machine
running 5 minutes or longer
Open spray gun or turn o machine.
Excess water supply pressure Place a pressure regulator at end of 50'
garden hose.
NO DETERGENT Detergent suction tube not properly
connected to machine
Check connection.
Detergent is too thick Dilute detergent. For best results, use
manufacturers detergent.
Detergent lter valve is at lowest
setting
Set detergent lter valve to a higher setting.
Filter on detergent suction tube is
clogged
Run warm water through lter to remove
debris.
Damaged or clogged detergent
suc- tion tube
Remove obstruction or replace detergent
suction tube.
A high pressure nozzle is attached. Replace with black detergent nozzle.
Discharge nozzle is obstructed Blow out or remove debris with ne needle.
GARDEN HOSE
CONNECTION
LEAKS
Loose ttings Tighten ttings.
Missing/worn rubber washer Insert new washer.
SPRAY WAND
LEAKS
Spray wand not properly attached Slide the spray wand into the gun. Turn the
wand collar clockwise onto the spray gun
threads until tight.
Broken o-ring Call local distributor and order an o-ring.
PUMP IS NOISY Pump is sucking air Check that hoses and ttings are air tight.
Turn o machine and purge pump by
squeezing trigger gun until a steady ow of
water emerges through nozzle.
9.808-227.0 - Operator's Manual
15
PREVENTATIVE MAINTENANCE
For Models: HD 3.0/27 G Teton, HD 3.5/35 G Teton, HD 4.0/40 G Teton,
HD 4.0/40Ge Teton
This pressure washer was produced with the best available materials and quality craftsmanship. However, you
as the owner have certain responsibilities for the correct care of the equipment. Attention to regular preventa-
tive maintenance procedures will assist in preserving the performance of your equipment. Contact your dealer
for maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer.
Perform maintenance more often under severe conditions. Check pump oil and engine oil level before rst use
of your new pressure washer.
MAINTENANCE SCHEDULE
Engine Oil
Inspect Daily
Change First month or 20 hours.
Every 100 hours or every 6 months after rst month
Filter Every 50 hours
Air Cleaner/Filter
Inspect Every 50 hours
Clean Monthly
Engine Fuel Filter 500 hours or 6 months
Spark Plug Maintenance 300 hours or annually
Clean Fuel Tank(s) Annually
Replace Fuel Lines Annually
Pump Oil
(Non foaming)
SAE 10W-40
Inspect Oil level daily
Change After rst 50 hours, then every 500 hours or annually
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects/O-Rings Annually/As needed
Clean Water Screen/Filter Weekly
Replace HP Hose Annually (if there are any signs of wear)
NOTE: Read engine manual for any maintenance or service questions.
9.808-227.0 - Operator's Manual
16
TROUBLESHOOTING
For Models: HD3.0/27 GB Teton, HD 3.5/35 GB Teton, HD 4.0/40 GB Teton,
HD 4.0/40 GeB Teton, HD 5.0/30 GB Teton, HD 5.0/30 GeB Teton
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Faulty pressure gauge Install new gauge.
Insucient water supply
Use larger supply hose; clean lter at water
inlet.
Old, worn or incorrect spray
nozzle
Match nozzle number to machine and/or replace
with new nozzle.
Belt slippage Tighten or replace; use correct belt.
Plumbing or hose leak
Check plumbing system for leaks. Re-tape leaks
with teon tape.
Faulty or mis-adjusted unloader
valve
Adjust unloader for proper pressure. Install
repair kit when needed.
Worn packing in pump Install new packing kit.
Fouled or dirty inlet or discharge
valves in pump
Clean inlet and discharge valves.
Worn inlet or discharge valves Replace with valve kit.
Obstruction in spray nozzle Remove obstruction.
Leaking pressure control valve Rebuild or replace as needed.
Slow engine RPM Set engine speed at proper specications.
Pump sucking air
Check water supply and possibility of air seep-
age.
Valves sticking Check and clean or replace if necessary.
Unloader valve seat faulty Check and replace if necessary.
FLUCTUATING
PRESSURE
Worn or dirty pump valves Call local distributor.
Nozzle is obstructed Blow out or remove debris with ne needle.
Pump sucking air, inlet hose
leaking
Check that all hoses and ttings are airtight.
Turn o machine and trigger spray gun until
a steady ow of water emerges through the
nozzle.
Insucient water supply Turn water on full force. Check garden hose for
kinks, leaks or blockage.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Replace nozzle.
Unloader valve worn Replace unloader valve.
ENGINE WILL NOT
START OR STOPS
WHILE OPERATING
Low oil shutdown Fill engine with oil.
Out of gas Fill fuel tank.
Water in gasoline Drain gas tank; ll with clean fuel.
ENGINE IS
OVERLOADED
Nozzle partially blocked Clean nozzle.
Excessive pressure from high
engine RPM
Adjust engine throttle to lower RPM.
9.808-227.0 - Operator's Manual
17
TROUBLESHOOTING
For Models: HD3.0/27 GB Teton, HD 3.5/35 GB Teton, HD 4.0/40 GB Teton,
HD 4.0/40 GeB Teton, HD 5.0/30 GB Teton, HD 5.0/30 GeB Teton
PROBLEM POSSIBLE CAUSE SOLUTION
WATER OR OIL
LEAKING FROM
BOTTOM OF PUMP
A small amount of leaking is
normal
If excessive leaking occurs, call local
distributor.
PRESENCE OF WA-
TER IN PUMP OIL
Water sprayed at machine Change oil. Direct spray away from machine.
High humidity in air Check and change oil twice as often.
Piston packing worn. Oil seal
worn.
Call local distributor.
ENGINE OPERATES
FOR 15 MINUTES
THEN STOPS
Not enough gas or engine oil Fill tank with gas. Check oil level.
Vapor lock developed by heat
of day
Keep gas tank full to avoid vapor locking.
Obstruction in fuel lter Clean or replace fuel lter.
ENGINE LACKS
POWER
Dirty air lter Replace air lter.
ENGINE FALTERS
Choke is opened too soon Move choke to halfway position until en- gine
runs smoothly.
WATER DRIPPING
FROM UNDER
PUMP
Piston packing worn Call local distributor.
O-Ring plunger retainer worn Call local distributor.
Cracked piston Call local distributor.
OIL DRIPPING
FROM UNDER
PUMP
Oil seal worn or damaged Call local distributor.
WATER LEAKING
FROM PUMP PRO-
TECTOR
Spray gun closed with machine
running 5 minutes or longer
Open spray gun or turn o machine.
Excess water supply pressure Place a pressure regulator at end of 50' garden
hose.
NO DETERGENT
Detergent suction tube not prop-
erly connected to machine
Check connection.
Detergent is too thick Dilute detergent. For best results, use
manufacturers detergent.
Detergent lter valve is at lowest
setting
Set detergent lter valve to a higher setting.
Filter on detergent suction tube
is clogged
Run warm water through lter to remove
debris.
Damaged or clogged detergent
suc- tion tube
Remove obstruction or replace detergent suc-
tion tube.
A high pressure nozzle is at-
tached.
Replace with black detergent nozzle.
Discharge nozzle is obstructed Blow out or remove debris with ne needle.
GARDEN HOSE
CONNECTION
LEAKS
Loose ttings Tighten ttings.
Missing/worn rubber washer Insert new washer.
9.808-227.0 - Operator's Manual
18
PREVENTATIVE MAINTENANCE
HD3.0/27 GB Teton, HD 3.5/35 GB Teton, HD 4.0/40 GB Teton, HD 4.0/40 GeB Teton,
HD 5.0/30 GB Teton, HD 5.0/30 GeB Teton
This pressure washer was produced with the best available materials and quality craftsmanship. However, you
as the owner have certain responsibilities for the correct care of the equipment. Attention to regular preventa-
tive maintenance procedures will assist in preserving the performance of your equipment. Contact your dealer
for maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer.
Perform maintenance more often under severe conditions. Check pump oil and engine oil level before rst use
of your new pressure washer.
MAINTENANCE SCHEDULE
Engine Oil
Inspect Daily
Change
First month or 20 hours.
Every 100 hours or every 6 months after rst month
Filter Every 50 hours
Air Cleaner/Filter
Inspect Daily
Clean Every 3 months or 50 hours
Engine Fuel Filter 500 hours or 6 months
Spark Plug
Maintenance
Inspect Every 6 months or 100 hours
Change Every year or 300 hours
Clean Fuel Tank(s) Annually
Pump Oil
(Non foaming)
SAE 10W-40
Inspect Oil level daily
Change After rst 50 hours, then every 500 hours or annually (or 3 months)
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects Annually
Clean Water Screen/Filter Weekly
Replace HP Hose Annually (if there are any signs of wear)
Belts*
Tighten Every 6 months
Inspect/Replace Every 6 months
*Note: When servicing belts, don't exceed 14 lb-ft on pump mounting screws.Failure to do so will cause pump
thread damage.
NOTE: Read engine manual for any maintenance or service questions.
TROUBLESHOOTING
For Models: HD3.0/27 GB Teton, HD 3.3/35 GB Teton, HD 4.0/40 GB Teton,
HD 4.0/40 GeB Teton, HD 5.0/30 GB Teton, HD 5.0/30 GeB Teton
PROBLEM POSSIBLE CAUSE SOLUTION
SPRAY WAND
LEAKS
Spray wand not properly at-
tached
Slide the spray wand into the gun. Turn the
wand collar clockwise onto the spray gun
threads until tight.
Broken o-ring Call local distributor and order an o-ring.
PUMP IS NOISY Pump is sucking air Check that hoses and ttings are air tight. Turn
o machine and purge pump by squeezing
trigger gun until a steady ow of water emerges
through nozzle.
9.808-227.0 - Operator's Manual
19
OIL CHANGE RECORD
Check pump oil and engine oil level before rst use of your new pressure washer.
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
9.808-227.0 - Operator's Manual
20
ACCESSORIES ASSEMBLY
ACCESSORIES ASSEMBLY PARTS LIST
1
2
10
6
5
8
3
ITEM PART NO. DESCRIPTION QTY
1 8.916-740.0 Hose 3/8"X50 1
2 8.750-247.0 Gun, M407 1
3 8.783-039.0 Wand 30" Zinc Plated, Handle & Coupler (HD 3.0/27 G Teton, HD 3.0/27 GB Teton) 1
8.783-040.0 Wand 44" Zinc Plated, Handle & Coupler (HD 3.5/35 G Teton, HD 4.0/40 G Teton,
HD 4.0/40Ge Teton, HD 3.5/35 GB Teton, HD 4.0/40 GB Teton, HD 4.0/40 GeB Teton,
HD 5.0/30 GB, HD 5.0/30 GeB) 1
4 Quick Connect Nozzle Kit (3.5) (HD 3.5/35 G Teton and HD 3.5/35 GB Teton, HD 3.0/27 G Teton)
8.712-338.0 ▲ Nozzle, SAQCMEG 1503.5, Yellow 1
8.712-339.0 ▲ Nozzle, SAQCMEG, 2503.5, Green 1
8.712-340.0 ▲ Nozzle, SAQCMEG 4003.5, White 1
8.712-398.0 ▲ Nozzle Compl, Qcem-6540 Brass (chem) 1
Quick Connect Nozzle Kit (3.75) (HD3.0/27 GB Teton)
9.804-625.0 ▲ Nozzle, SAQCMEG, 250375, Green. 1
9.804-624.0 ▲ Nozzle, SAQCMEG, 150375, Yellow. 1
9.804-626.0 ▲ Nozzle, SAQCMEG, 400375, White. 1
8.712-398.0 ▲ Nozzle Compl, Qcem-6540 Brass (chem) 1
Quick Connect Nozzle Kit (4.0) (HD 4.0/40 G Teton, HD 3.9/40 GB Teton,
HD 4.0/40 Ge Teton, HD 4.0/40 GeB Teton) 1
8.712-346.0 ▲ Nozzle, SAQCMEG 1504, Yellow 1
8.712-347.0 ▲ Nozzle, SAQCMEG 2504, Green 1
8.712-348.0 ▲ Nozzle, SAQCMEG 4004, White 1
8.712-398.0 ▲ Nozzle Compl, Qcem-6540 Brass (chem) 1
Quick Connect Nozzle Kit (5.0) (HD 5.0/30 GB Teton, HD 5.0/30 GeB Teton)
8.712-362.0 ▲ Nozzle, SAQCMEG 1506, Yellow 1
8.712-363.0 ▲ Nozzle, SAQCMEG 2506, Green 1
8.712-364.0 ▲ Nozzle, SAQCMEG 4006, White 1
8.712-398.0 ▲ Nozzle kpl., QCEM-6540 Mess. (chem) 1
5 9.802-166.0 Coupler, 3/8" Female, Brass 1
6 9.802-170.0 Coupler, 3/8"plug, female, steel/zinc 1
7 9.802-216.0 Injector, Chem, 0.083 1
8 6.388-216.0 Hose DN 5 1
9 5.731-652.0 Filter with weight 1
10 9.802-169.0 Coupler, 3/8" Socket, Male, Brass 1
▲ Not Shown
4
7
9
5
Karcher North America, 6398 N Kärcher Way, Aurora, CO 80019
Form #9.808-227.0 • Printed in U.S.A. or Mexico
