Karcher HD3-8-35P User Manual

OPERATOR’S MAN U AL

®

MODEL # ORDER #

XPERT-HD 3.8/35 P
XPERT-HD 3.5/40 P

To locate your local Kärcher Commercial Pressure Washer Dealer nearest you,

visit www.karchercommercial.com

1.107-108.0

1.107-219.0

8.780-016.0

Important Safety Information ................................................................4-6

Component Identifi cation ......................................................................... 7

Assembly Instructions .............................................................................. 8

Operating Instructions.........................................................................9-10

Detergent and General Operating Techniques ...................................... 11

Shut Down and Clean-Up ......................................................................12

Storage .................................................................................................. 12

Troubleshooting ................................................................................13-14

Preventive Manteinance ........................................................................ 15

Hose and Spray Gun Assembly and Parts list .......................................16

Oil Change Record ................................................................................ 17

Warranty ................................................................................................18

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.

8.780-016.0 • Xpert-HD • Rev. 07/13

3

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

PRESSURE WASHER

is not fl 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 com­prehends 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

OPERATOR’S MANUAL

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.

WARNING

WARNING: This machine exceeds

85 db appropriate ear protection
must be worn.

EAR PROTECTION

MUST BE WORN

WARNING

WARNING: High pressure spray

can cause paint chips or other
particles to become airborne
and fl y at high speeds. To avoid
personal injury, eye, hand and

USE PROTECTIVE

EYE WEAR

AND CLOTHING

WHEN OPERATING

THIS EQUIPMENT.

foot safety devices must be
worn.

5. Eye, hand, and foot pro­tection must be worn when
using this equipment.

6. Keep operating area clear of all persons.

WARNING

WARNING: Flammable liquids
can create fumes which can ig­nite, causing property damage
or severe injury.

WARNING: Risk of explosion —

RISK OF EXPLOSION:

OPERATE ONLY WHERE

OPEN FLAME OR TORCH

IS PERMITTED

Operate only where open fl ame
or torch is permitted.

IMPORTANT SAFETY

INFORMATION

WARNING: To reduce the risk of

injury, read operating instruc­tions carefully before using.

1.

Read owner's manual thor­oughly. Failure to follow in­structions could cause mal-

READ OPERATOR’S

MANUAL THOROUGHLY

PRIOR TO USE.

2. Know how to stop the machine and bleed pressure
quickly. Be thoroughly familiar with the controls.

3. Stay alert — watch what you are doing.

WARNING

KEEP WATER

SPRAY AWAY FROM

ELECTRICAL WIRING.

4

function of the machine and
result in death, serious bodily
injury and/or property damage.

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 electrician, plumber,
utility company or the selling
distributor for specifi c details.

8.780-016.0 • Xpert-HD • Rev. 07/13

WARNING

WARNING: Risk of fi re — Do not

add fuel when the product is
operating or still hot.

WARNING: Do not use gasoline
crankcase draining or oil con-

RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING

MACHINE.

taining gasoline, solvents or
alcohol. Doing so will result in
fi re and/or explosion.

WARNING: Risk of fi re — Do not

Spray fl ammable liquids.

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
fi res around dry vegetation. A spark arrestor may
be required. The operator should contact: Local
fi re agencies for laws or regulations relating to fi re
prevention requirements.

7. Allow engine to cool for 1-2 minutes before refu­eling. 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.)

IMPORTANT SAFETY INFORMATION

PRESSURE WASHER

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 ambient temperature.
In an overfi lling situation, additional precautions are

necessary to ensure that the situation is handled

in a safe manner.

WARNING: Risk of injury. Disconnect battery
ground terminal before servicing.

8. When in use , do not place machine near fl ammable

objects as the engine is hot.

9. Oil burning appliances shall be installed only in

locations where combustible dusts and fl ammable

gases or vapors are not present. Do not store or

use gasoline near this machine.

10. Use No. 1 or No. 2 heating oil (ASTM D306) only.

NEVER use gasoline in your fuel oil tank. Gasoline

is more combustible than fuel oil and could result

in a serious explosion. NEVER use crankcase or

waste oil in your burner. Fuel unit malfunction could

result from contamination.

11. Do not confuse gasoline and fuel oil tanks. Keep

proper fuel in proper tank.

WARNING

WARNING: Risk of injury. Hot
surfaces 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

RISK OF INJURY.

HOT SURFACES

CAN CAUSE BURNS

washer.

12. Transport/Repair with fuel tank EMPTY or with fuel

shut-off valve OFF.

CAUTION: Hot discharge fl uid.
Do not touch or direct discharge
stream at persons.

WARNING: This machine pro­duces hot water and must have

HOT DISCHARGE FLUID:

DO NOT TOUCH OR

DIRECT DISCHARGE

STREAM AT PERSONS.

insulated components attached
to protect the operator.

WARNING

WARNING: Grip cleaning wand

securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.

14. Never make adjustments on

TRIGGER GUN KICKS

BACK - HOLD WITH

BOTH HANDS

machine while in operation.

15. Be certain all quick coupler fi ttings are secured
before using pressure washer.

WARNING

WARNING: High pressure devel-

oped by these machines will
cause personal injury or equip­ment damage. Keep clear of
nozzle. Use caution when oper­ating. Do not direct discharge

RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.

WARNING

stream at people, or severe in­jury or death will result.

WARNING: Protect machine from

freezing.

16. To keep machine in best
operating conditions, it is
important you protect machine
from freezing. Failure to protect

PROTECT FROM

FREEZING

machine from freezing
could cause malfunction of the

machine and result in death,
serious bodily injury, and/or property damage. Fol­low storage instructions specifi ed in this manual.

17. Inlet water must be clean fresh water and no hotter
then 90°F.

WARNING

WARNING: Risk of asphyxiation.

Use this product only in a well
ventilated area.

18. Avoid installing machines
in small areas or near ex-

RISK OF

ASPHYXIATION. USE

THIS PRODUCT ONLY IN

A WELL

VENTILATED AREA.

haust fans. Adequate ox­ygen is needed for com­bustion or dangerous car­bon monoxide will result.

19. Manufacturer will not be liable for any changes
made to our standard machines or any components
not purchased from us.

20. The best insurance against an accident is precau­tion and knowledge of the machine.

OPERATOR’S MANUAL

13. 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.

8.780-016.0 • Xpert-HD • Rev. 07/13

5

IMPORTANT SAFETY INFORMATION

WARNING

WARNING: Be extremely careful

when using a ladder, scaffolding
or any other relatively unstable
location. The cleaning area
should have adequate slopes
and drainage to reduce the pos-

RISK OF INJURY FROM

FALLS WHEN USING

PRESSURE WASHER

LADDER.

sibility of a fall due to slippery
surfaces.

21. Do not allow acids, caustic or abrasive fl uids to pass
through the pump.

22. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.

23. Machines with shut-off spray gun should not be
operated with the spray gun in the off position for
extensive periods of time as this may cause dam-

OPERATOR’S MANUAL

age to the pump.

24. Protect discharge hose from vehicle traffi c and
sharp objects. Inspect condition of high pressure
hose before using or bodily injury may result.

25. In hot water models before disconnecting discharge
hose from water outlet, turn burner off and open
spray gun to allow water to cool below 100° before
stopping the machine. Then open the spray gun
to relieve pressure. Failure to properly cool down
or maintain the heating coil may result in a steam
explosion.

26. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.

27. Do not operate this machine when fatigued or under
the infl uence of alcohol, prescription medications,
or drugs.

28. In oil burning models, use only kerosene, No. 1
home heating fuel, or diesel. If diesel is used, add
a soot remover to every tankful.

29. This pressure washer is equipped with pneumatic
tires which may not be fully infl ated due to shipping
and storage. Please check the air pressure of each
tire before use:

a. Remove the valve cap from the tire.
b. Attach a bicycle pump and infl ate the tire

to a maximum pressure of 25 PSI

Note: If a compressor must be used, follow the

compressor manufacturer's guidelines to limit the
output pressure so as not to exceed 25 PSI.

c. Replace the valve cap to the tire valve and tighten

fi rmly. Tire pressure should not exceed 25 PSI.

Follow the maintenance instructions
specifi ed in the manual.

6

8.780-016.0 • Xpert-HD • Rev. 07/13