Karcher Pressure Washer K 8000 G User Manual

K8000G Manual 11/30/01 5:06 PM Page 1  
Model K 8000 G  
Part No. 1.187-106.0  
High Pressure Washer Operator Manual  
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1  
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2  
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . .3  
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . .4-5  
Using the Accessories . . . . . . . . . . . . . . . . . . . . . . . .5  
Working with Detergents . . . . . . . . . . . . . . . . . . . . . . .6  
Shut Down and Clean-Up . . . . . . . . . . . . . . . . . . . . . .7  
Taking a Break . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7  
Winterizing and Long-Term Storage . . . . . . . . . . . . . .7  
Cleaning Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9  
Optional Cleaning Accessories . . . . . . . . . . . . . . . . . .9  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . .10-11  
Specifications  
Operating pressure 3000 PSI  
Water volume  
Engine  
2.5 GPM  
7.8 HP Briggs & Stratton Vanguard  
 
K8000G Manual 11/30/01 5:06 PM Page 4  
ASSEMBLY INSTRUCTIONS  
OPERATING INSTRUCTIONS  
Tools required: adjustable pliers.  
Step1 Attach the handle to the frame of  
the pressure washer. Align holes, insert bolt,  
and tighten with knob.  
Step2 Attach high pressure hose to  
Step1 Connect the high pressure hose  
Step2 Connect garden hose to unit’s  
trigger gun.  
to the unit’s high pressure outlet.  
water inlet.  
3
4
Step3 Connect garden  
hose to the cold water  
source and turn water on  
completely.  
Step4 Trigger the gun  
to eliminate trapped air,  
wait for a steady flow of  
water to emerge from the  
spray nozzle.  
Step5  
Turn the engine on (I).  
Step3 Attach the triple jet nozzle to the  
Step4 Attach the spray wand to the  
spray wand.  
trigger gun.  
Step5 Check oil level. Oil level should be  
to the oil filler neck. Be sure the machine is  
level when checking the oil level. (Refer to the  
engine’s operating manual for seasonal grades.)  
Step6 Fill gas tank with unleaded  
gasoline. Do not use leaded gasoline.  
Important! Do not run the engine  
with a high or low oil level as this can  
cause engine damage. If you have fur-  
ther questions regarding the engine,  
please refer to the engine’s operating  
manual included with the unit.  
Step6 Turn fuel valve  
Step7 Slide the throttle control to the fast position. Move  
the choke lever to the “CHOKE” position (only if the engine is  
cool). After starting, move the choke to “RUN”.  
on.  
 
K8000G Manual 11/30/01 5:06 PM Page 6  
OPERATING INSTRUCTIONS - continued  
WORKING WITH DETERGENT  
Detergents can only be applied in the “CHEM” setting.  
For best results see Cleaning  
Tips on pages 8 & 9 for specific  
information on how to clean  
different surfaces.  
Step8 Pull the starter handle. If the  
engine fails to start after 3 pulls squeeze the  
trigger gun to release pressure, and repeat  
step 8.  
Step9 Adjust pressure control to  
desired setting.  
Always Use Karcher  
Detergents for Best Results.  
Karcher biodegradable detergents are  
specially formulated to protect the environ-  
ment and your pressure washer. Special  
formula won’t clog the suction tube filter  
and will protect the internal parts of the  
pressure washer for a longer life. For  
Karcher Detergents, check your retailer  
or call:  
USING THE ACCESSORIES  
Step1 To apply detergents the triple jet  
nozzle must be set to the “CHEM” position.  
The triple jet nozzle must be positioned to one of the two settings for high pressure cleaning  
by turning the nozzle tip. The pencil jet spray (0º) should be used for stubborn dirt. The High  
pressure flat spray (25º) should be used for cleaning over a large surface area. The third set-  
ting on the triple jet nozzle is used for the application of detergents.  
5
6
1-800-537-4129  
The following Karcher detergents are  
available:  
High pressure  
pencil jet cleaning.  
• Vehicle Wash  
• Degreaser  
• House Wash  
• Deck Wash  
• All Purpose Cleaner  
Step2 Fill a container with Karcher  
detergent. Place the filter end of detergent  
suction tube into the container.  
High pressure  
fan spray cleaning.  
Caution  
Never use:  
• Bleach, Chlorine products and other  
corrosive chemicals  
• Liquids containing solvents  
(i.e., paint thinners, gasoline, oils)  
Tri-sodium phosphate products  
• Ammonia products  
• Acid-based products  
These chemicals will harm the unit and  
will damage the surface being cleaned.  
Low Pressure detergent  
application “CHEM” position.  
Step3 With the engine running, pull  
trigger to operate unit: Liquid detergent is  
drawn into the unit and mixed with water.  
Apply detergent to work area. Do not allow  
detergent to dry on surface.  
WARNING TO AVOID SERIOUS INJURY, NEVER POINT SPRAY NOZZLE AT  
YOURSELF, OTHER PERSONS OR ANIMALS  
 
K8000G Manual 11/30/01 5:06 PM Page 8  
SHUTTING DOWN & CLEAN-UP  
CLEANING TIPS  
Cement Patios,  
Deck Cleaning  
Brick and Stone  
(with or without detergent)  
(with or without detergent)  
Pre-rinse deck and surrounding area with  
fresh water. If using Kärcher Deck Wash,  
place detergent suction tube directly into  
cleaning solution and apply to surface at  
low pressure. For best results, limit your  
work area to smaller sections of approxi-  
mately 25 square feet. Allow Kärcher Deck  
Wash to remain on surface 1-3 minutes. Do  
not allow detergent to dry on surface. Rinse  
at high pressure in a long sweeping motion  
keeping the spray nozzle approximately 6  
inches from the cleaning surface. Always  
clean from top to bottom and from left to  
right. When moving on to a new section of  
the cleaning surface, be sure to overlap the  
previous section to eliminate stop marks  
and ensure a more even cleaning result.  
Pre-rinse cleaning surface with fresh water.  
If using Karcher All Purpose Cleaner, place  
detergent suction tube directly into cleaning  
solution and apply to surface at low pres-  
sure. For best results, limit your work area  
to smaller sections of approximately 25  
square feet. Allow Kärcher All Purpose  
Cleaner to remain on surface 1-3 minutes.  
Do not allow detergent to dry on surface.  
Rinse at high pressure in a sweeping  
motion keeping the spray nozzle approxi-  
mately 3-6 inches from the cleaning sur-  
face. Always clean from top to bottom and  
from left to right.  
Step1 Remove  
Step2  
Step3  
Turn off the fuel  
valve.  
Step4  
detergent suction tube  
Turn off (O) the  
Turn off the  
water source.  
from container and insert engine.  
into one gallon of fresh  
water. Siphon water at low  
pressure for one minute.  
Cars, Boats & Motorcycles  
(with or without detergent)  
Pre-rinse vehicle with fresh water. If using  
Karcher Vehicle Wash, place detergent suc-  
tion tube directly into cleaning solution and  
apply to surface at low pressure. For best  
results, clean one side of vehicle at a time  
and always apply detergent from bottom to  
top, do not allow detergent to dry on sur-  
face. Rinse at high pressure in a sweeping  
motion keeping the spray nozzle approxi-  
mately 8 inches from the cleaning surface  
(distance should increase when rinsing pin-  
striping or other sensitive surfaces). Always  
clean from top to bottom and from left to  
right. For best results, wipe surface dry with  
a chamois or soft dry cloth.  
House Siding  
(with or without detergent)  
Pre-rinse cleaning surface with fresh water.  
If using Kärcher House Wash, place deter-  
gent suction tube directly into cleaning  
solution and apply to surface at low pres-  
sure (for best results, limit your work area  
to sections of approximately 6 feet and  
always apply detergent from bottom to top).  
Allow Karcher House Wash to remain on  
surface 1-3 minutes. Do not allow detergent  
to dry on surface, if surface appears to be  
drying, simply wet down surface with fresh  
water. Rinse at high pressure from top to  
bottom in an even sweeping motion keep-  
ing the spray nozzle approximately 6 inches  
from the cleaning surface.  
7
8
Step5 Press  
trigger to release water  
pressure.  
Step6 Disconnect the garden  
Step7 Engage the  
hose from the water inlet. Disconnect  
the high pressure hose from the high  
pressure outlet.  
gun safety lock.  
TAKING A BREAK... five minutes or more  
Step1 Turn off (O)  
Step2 Press trigger  
Step3 Engage gun  
the engine.  
to release water pressure.  
safety lock.  
WINTERIZING AND LONG-TERM STORAGE  
1. Disconnect all water connections.  
2. Start the machine for a few seconds,  
until the water which had remained in the  
pump exits. Turn off immediately.  
3. Drain the gas and oil from the engine.  
4. Do not allow high pressure hose to  
become kinked.  
5. Store the machine and accessories in  
a room which does not reach freezing  
temperatures. The machine should not be  
placed near an open flame i.e. furnace,  
hot water heater etc.  
Caution: Failure to follow the above direc-  
tions will result in damage to the pump  
assembly and accessories.  
 
K8000G Manual 11/30/01 5:06 PM Page 10  
CLEANING TIPS - continued  
TROUBLESHOOTING  
Barbecue Grills, Outdoor  
Power Equipment &  
Recommendations  
Symptom  
Cause  
Solution  
Fill gas tank.  
Add oil.  
• Before cleaning any surface an inconspic-  
uous area should be cleaned to test spray  
pattern and distance for maximum clean-  
ing results.  
Engine will not  
start  
No gasoline.  
Low oil level.  
Gardening Tools  
(with or without detergent)  
Pre-rinse cleaning surface with fresh water.  
If using Kärcher All Purpose Cleaner or  
Degreaser, place detergent suction tube  
directly into cleaning solution and apply  
detergent at low pressure. Allow Kärcher  
detergent to remain on surface 1-3 minutes.  
Do not allow detergent to dry on surface.  
Rinse at high pressure keeping the spray  
nozzle approximately 6 inches from the  
cleaning surface. For removing extremely  
stubborn dirt, it may be necessary to move  
the spray nozzle even closer to the surface  
for greater dirt cutting action.  
• If painted surfaces are pealing or chipping,  
use extreme caution as pressure washer  
may remove the loose paint from the  
surface.  
Slide choke lever to “CHOKE”  
position.  
Choke is not in correct  
position.  
Engine throttle is not in  
correct position.  
Position the throttle to “FAST.  
For additional  
Use extreme caution when cleaning decks,  
siding, and other sensitive surfaces as the  
pencil jet may cause damage if not used  
correctly.  
engine problems  
refer to the engine  
owners manual.  
Pressure built up in the  
high pressure washer.  
Squeeze the trigger to release the  
pressure.  
Unit does not reach Diameter of garden hose is  
Replace with a 3/4 inch garden  
hose.  
high pressure.  
too small.  
Water supply is restricted.  
Check garden hose for kinks, leaks  
and blockage.  
Patio & Lawn Furniture  
(with or without detergent)  
Not enough inlet water supply. Open water source full force.  
Pre-rinse furniture and surrounding area with  
fresh water. If using Kärcher All Purpose  
Cleaner, place detergent suction tube direct-  
Water inlet filter is clogged.  
Remove filter and rinse out in warm  
water.  
9
10  
ly into cleaning solution and apply to surface  
at low pressure. Allow Kärcher All Purpose  
Cleaner to remain on surface 1-3 minutes.  
Do not allow detergent to dry on surface.  
Rinse at high pressure in a sweeping motion  
keeping the spray nozzle approximately 6  
inches from the cleaning surface. For best  
results, clean from top to bottom and from  
left to right.  
Nozzle is in “CHEM”  
position.  
Turn nozzle to high pressure position.  
Output pressure  
varies high and low.  
Not enough inlet water supply. Turn water on full force. Check garden  
hose for kinks, leaks or blockage.  
Pump is sucking air.  
Check that hoses and fittings are air  
tight. Turn off machine and purge  
pump by squeezing trigger gun until  
a steady flow of water emerges  
through the nozzle.  
OPTIONAL CLEANING ACCESSORIES  
Water inlet filter is clogged.  
Remove filter and rinse out in warm  
water.  
Optional cleaning accessories are available to further enhance your cleaning capabilities.  
Call Kärcher customer service hotline (1-800-537-4129) for details.  
Discharge nozzle is  
obstructed.  
Blow out or remove debris with a  
fine needle.  
Calcified gun, hose or spray Run distilled vinegar through  
wand. detergent suction tube.  
 
K8000G Manual 11/30/01 5:06 PM Page 12  
TROUBLESHOOTING - continued  
Symptom  
Cause  
Solution  
No detergent.  
Detergent suction tube not  
properly connected to the  
machine.  
Check connection.  
Detergent is too thick.  
Dilute detergent, for best results use  
Kärcher detergent.  
Filter on detergent suction  
tube is clogged.  
Run warm water through filter to  
remove debris.  
Damaged or clogged  
detergent suction tube.  
Remove obstruction or replace  
detergent suction tube.  
Spray nozzle is in high  
pressure position.  
Turn spray nozzle tip to ”CHEM”  
position.  
Discharge nozzle is  
obstructed.  
Blow out or remove debris with a  
fine needle.  
Garden hose  
connection leaks.  
Loose fitting.  
Tighten fittings.  
Missing/worn rubber washer. Insert new washer.  
Tighten connections  
Nozzle or spray wand not  
properly attached.  
Triple jet nozzle or  
Spray wand leaks.  
11  
Call Kärcher customer service  
hotline and order “o”-ring.  
Broken “o”-ring.  
Pump is noisy.  
Pump is sucking air.  
Check that hoses and fittings are air  
tight. Turn off machine and purge  
pump by squeezing trigger gun until  
a steady flow of water emerges  
through the nozzle.  
Water leaks from  
pump (up to 10  
drops per minute  
is permissible).  
Loose fittings.  
Check that all fittings are tight.  
Thermal protection device  
has been activated.  
Thermal protection device will  
automatically reset.  
Water seals are damaged  
or worn.  
Call service center.  
Oil Drip.  
Oil seals are damaged or  
worn.  
Call service center.  
If you encounter any additional  
difficulties not listed, please call  
our service center for help.  
Karcher Customer Support USA  
1-800-537-4129  
 

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