Karcher Pressure Washer K330M User Manual

Model K 330 M  
Part No. 1.994-916.0  
High Pressure Washer Operator Manual  
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1  
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3  
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . .3  
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . .4  
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 1300 PSI  
Water volume  
Voltage  
Amp draw  
1.7 GPM  
120 V  
14 AMPS  
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IMPORTANT PRECAUTIONS – Read First!  
disconnect. Keep cord away from heat  
Safety Warnings  
and sharp edges. Always disconnect the  
extension cord from the receptacle before  
disconnecting the product from the  
extension cord. If you are using an exten-  
sion cord, it should always be completely  
unwound from the cable drum.  
When using this product basic precau-  
tions should always be followed:  
• Read all the instructions before using  
the product.  
• High pressure jets can be dangerous  
if subject to misuse. The jet must not  
be directed at persons, animals, electri-  
cal devices, or the machine itself.  
To reduce the risk of injury, do not  
operate the machine near children.  
• Learn how to stop the machine and  
release pressure quickly. Be thoroughly  
familiar with the controls.  
Ground Fault Circuit  
Interrupter Protection  
To comply with the National Electrical  
Code (NFPA70) and to provide additional  
protection from the risk of electrocution,  
this high pressure washer should only be  
connected to a receptacle that is protect-  
ed by a ground fault circuit interrupter  
(GFCI). For best results, unit should be  
plugged into an unshared outlet.  
• Stay alert — watch what you are  
doing.  
• Wear safety goggles.  
• Do not use acids, solvents, or any  
other flammable material in this prod-  
uct. These products can cause physical  
injuries to the operator and irreversible  
damage to the machine.  
• Do not operate the product when  
fatigued or under the influence of  
alcohol or drugs.  
• Do not stand on unstable surfaces.  
Stand with both feet balanced at  
all times.  
To reduce the risk of electrocution,  
keep all connections dry and off the  
ground. Do not touch plug with wet  
hands.  
This Product Is  
Double Insulated  
In a double-insulated product, two sys-  
tems of insulation are provided instead of  
grounding. No grounding method is pro-  
vided on a double-insulated product, nor  
should a method for grounding be added  
to the product. Servicing a double-insu-  
lated product requires extreme care and  
knowledge of the system, and should be  
done only by qualified service personnel.  
Replacement parts for a double-insulated  
product must be identical to the parts  
they replace. A double-insulated product  
is marked with the words, “DOUBLE  
INSULATED.”  
2
• The Gun Safety Lock PREVENTS  
the trigger from accidentally being  
engaged. This safety feature DOES  
NOT lock trigger in the on position.  
Extension Cords  
Use a sufficient gauge: Up to 25 ft = 12/2  
AWG; 25 to 50 ft = 10/2 AWG. Use only  
extension cords that are intended for out-  
door use. These extension cords are  
identified by the marking “Acceptable for  
use with outdoor appliances; store  
indoors while not in use.” Use only exten-  
sion cords having an electrical rating not  
less than the rating of the product. Do  
not use damaged extension cords.  
Caution  
Follow the maintenance instruc-  
tions specified in the manual.  
This machine has been designed  
for use with cleaning detergent  
supplied or recommended by the  
manufacturer. The use of other  
cleaning detergents may affect the  
operation of the machine and void  
the warranty.  
Examine extension cord before using and  
replace if damaged. Do not abuse exten-  
sion cord and do not yank on any cord to  
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IMPORTANT PRECAUTIONS continued  
Water Supply  
(Cold Water Only)  
• Water hose must be at least 3/4 inch in  
diameter.  
• The water supply temperature must not  
exceed 104°F/40°C.  
• Never use the pressure washer to draw in  
water contaminated with solvents, e.g.  
paint thinners, gasoline, oil, etc.  
• Always prevent debris from being drawn  
into the unit by using a clean water source.  
• Flow rate of water supply must not fall  
below 2.5 GPM (gallons per minute).  
• Flow rate can be determined by running  
the water for one minute into an empty  
5-gallon container.  
ASSEMBLY INSTRUCTIONS  
You will need a standard screw driver OR a Torx T-25 screw driver  
3
Step1 Align holes on adapter brackets with  
the posts on pressure washer as shown. Tighten  
the four screws.  
Step2 Press down to lock handle  
onto top of adapter brackets.  
Step3 Slide the spray wand extension into  
the gun. Turn the wand collar onto the gun  
threads until tight.  
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OPERATING INSTRUCTIONS  
Step1 Connect the high pressure hose to  
Step2 Insert the spray wand of  
your choice into the wand extension.  
Press in against the spring tension and  
twist into the locked position.  
the unit’s high pressure outlet.  
4
Step3 Connect garden hose to unit’s water  
Step4 Connect garden hose to  
the cold water source and turn water  
on completely.  
inlet using the quick connect adapter.  
Step5 Plug the power cord into the power  
outlet. Trigger the gun to eliminate trapped air,  
wait for a steady flow of water to emerge from  
the spray nozzle.  
Step6 Turn on the pressure  
washer (I). The motor starts only if  
the trigger of the gun is pulled  
and shuts off when the trigger is  
released.  
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USING THE ACCESSORIES  
Vario spray wand  
The Vario spray wand allows you to adjust the cleaning pressure. To clean at maximum  
pressure, the Vario wand must be positioned to the high pressure setting (+). To apply  
detergent, the wand must be positioned to the low pressure setting (-).  
For higher pressure turn  
wand collar in the plus (+)  
direction.  
For lower pressure turn  
wand collar in the minus (-)  
direction.  
Rotating spray wand  
Wash brush  
This wand features a 0º pencil jet which  
rotates 360º for maximum dirt cutting  
action, effectively increasing cleaning per-  
formance up to 50%. This wand combines  
the cleaning performance of a 0º pencil jet  
with the surface coverage of a wide angle  
nozzle. Not recommended for soft materi-  
als, siding, painted surfaces, decks or  
autos.  
This brush is ideal for removing stubborn  
dirt and stains from finished surfaces. Use  
with detergents only.  
5
WARNING TO AVOID  
SERIOUS INJURY, NEVER  
POINT SPRAY NOZZLE AT  
YOURSELF, OTHER PERSONS  
OR ANIMALS  
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WORKING WITH DETERGENTS  
Detergents can only be applied at low pressure (-).  
For best results see Cleaning  
Tips on pages 8 & 9 for specific  
information on how to clean  
different surfaces.  
Step1 Install the Wash brush or the  
Vario spray wand. Set the Vario spray wand  
to the low pressure setting (-) by turning the  
wand collar. The wand must be set in the  
low pressure (-) position to apply detergents.  
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:  
6
1-800-537-4129  
The following Karcher detergents are  
available:  
• Vehicle Wash  
• Degreaser  
• All Purpose Cleaner  
• House Wash  
• Deck Wash  
Step2 Fill a container with Karcher  
detergent. Place the filter end of detergent  
suction tube into the container.  
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.  
Step3 Turn on the pressure washer. 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.  
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SHUTTING DOWN & CLEAN-UP  
Step1 Remove de-  
tergent suction tube from  
container and insert into  
1 gallon of fresh water.  
Siphon water at low  
Step2  
Step3  
Step4  
Turn the switch to  
off (O) position  
and unplug cord  
from outlet.  
Turn off the water  
source.  
Press trigger to  
release water  
pressure.  
pressure for one minute.  
7
Step5 Disconnect  
the garden hose from the  
water inlet on the unit.  
Step6 Disconnect the high pressure hose from the  
high pressure outlet and engage the gun safety lock.  
TAKING A BREAK... five minutes or more  
Step1  
Step2  
Engage gun  
safety lock.  
Turn pressure  
washer to off (O)  
position.  
WINTERIZING AND LONG-TERM STORAGE  
1. Disconnect all water connections.  
2. Turn on the machine for a few seconds,  
until the water which had remained in  
the pump exits. Turn off immediately.  
3. Do not allow high pressure hose to  
become kinked.  
4. 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 the  
pump assembly and accessories.  
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CLEANING TIPS  
Cement Patios,  
Deck Cleaning  
(with or without detergent)  
Brick and Stone  
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 3-6  
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.  
Caution: Do not use rotating nozzle  
spray wand on wood surface as it may  
cause damage.  
(with or without detergent)  
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. For removing extremely  
stubborn stains, use Kärcher Rotating  
Nozzle Spray Wand.  
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. If needed, use special Wash Brush  
Attachment to remove stubborn dirt. Rinse  
at high pressure in a sweeping motion  
keeping the spray nozzle approximately 6-8  
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.  
8
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. If needed, use special Wash Brush  
Attachment to remove stubborn dirt. Rinse  
at high pressure from top to bottom in an  
even sweeping motion keeping the spray  
nozzle approximately 6 inches from the  
cleaning surface.  
Caution: Do not use rotating nozzle  
spray wand on vehicles as it may  
cause damage.  
Caution: Do not use rotating nozzle  
spray wand on siding as it may cause  
damage.  
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CLEANING TIPS – continued  
Barbecue Grills, Outdoor  
Power Equipment &  
Patio & Lawn Furniture  
(with or without detergent)  
Pre-rinse furniture and surrounding area with  
fresh water. If using Kärcher All Purpose  
Cleaner, place detergent suction tube direct-  
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. If  
needed use special Wash Brush Attachment  
to remove stubborn dirt. Rinse at high pres-  
sure in a sweeping motion keeping the  
spray nozzle approximately 3-6 inches from  
the cleaning surface. For best results, clean  
from top to bottom and from left to right.  
Caution: Do not use rotating nozzle spray  
wand on patio or lawn furniture as it may  
cause damage.  
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 3-6 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. To remove  
caked on mud from garbage cans, lawn  
mower blades, wheel barrels or other  
non-sensitive metal surfaces, you may  
want to use the Karcher Rotating Nozzle  
Spray Wand.  
Recommendations  
• Before cleaning any surface an inconspic-  
uous area should be cleaned to test spray  
pattern and distance for maximum clean-  
ing results.  
Caution: Do not use rotating nozzle spray  
wand on cloth, plastic or other sensitive  
surfaces as it may cause damage.  
9
• If painted surfaces are pealing or chipping,  
use extreme caution as pressure washer  
may remove the loose paint from the  
surface.  
OPTIONAL CLEANING ACCESSORIES  
Optional cleaning accessories are available to further enhance your cleaning capabilities:  
See accessories order form for product descriptions and ordering instructions.  
• Rotating Wash Brush  
• Wash Brush  
• Pipe Drain Cleaner  
• Floor Washing Tool  
• House Washing Wand  
• Extension Wand  
• Rotating Spray Wand  
• Flexible Spray Wand  
• Underbody Spray Wand  
Telescopic Spray Wand  
• Sandblasting Attachment  
• Detergent Foamer Attachment  
• Water Pumping Kit  
• Water Suction Hose  
• Extension Hose 25’  
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TROUBLESHOOTING  
Disconnect the machine from the power source before making any repair.  
Symptom  
Cause  
Solution  
Motor will not start  
On/Off switch is in the  
“OFF” (O) position.  
Turn switch to the “ON” (I) position  
Power cord is not plugged in. Plug in power cord.  
Extension cord is too long.  
Extension cord is not proper  
gauge.  
Replace extension cord with either  
a 25 ft. 12/2 gauge cord or a 50 ft.  
10/2 gauge cord.  
Extension cord is damaged.  
Electrical outlet does not  
supply adequate power.  
Try a different outlet.  
Tripped circuit breaker  
Reset breaker (power supply) or  
ground fault circuit interrupter.  
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.  
Not enough inlet water supply. Open water source full force.  
10  
Water inlet filter is clogged.  
Remove filter and rinse out in warm  
water.  
Spray wand is in low  
pressure position.  
Turn spray wand 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.  
Water inlet filter is clogged.  
Remove filter and rinse out in warm  
water.  
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.  
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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 wand is in high  
pressure position.  
Turn spray wand tip to low pressure  
position.  
Discharge nozzle is  
obstructed.  
Blow out or remove debris with fine  
needle.  
Garden hose  
connection leaks.  
Loose fittings.  
Tighten fittings.  
Missing/worn rubber washer. Insert new washer.  
Spray wand or  
Spray wand  
extension leaks.  
Spray wand not properly  
attached.  
Insert the spray wand into the spray  
wand extension. Carefully press in  
against the spring tension and twist  
into the locked position.  
11  
Spray wand extension not  
properly attached.  
Slide the spray wand extension into  
the gun. Turn the wand collar clock-  
wise onto the gun threads until tight.  
Broken o-ring or plastic  
insert.  
Call Kärcher customer service  
hotline and order repair kit  
(part no. 2.883-111.0).  
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.  
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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