Karcher Pressure Washer K 245 User Manual

Model K 2.45  
High Pressure Washer Operator Manual  
Overview ........................................................................ 2  
Precautions ................................................................. 2-4  
Assembly Instructions.................................................... 4  
Operating Instructions ................................................... 5  
GFCI Instructions ........................................................... 6  
Using the Accessories ................................................... 6  
Working with Detergents ................................................ 7  
Shut Down and Clean-Up .............................................. 8  
Taking a Break................................................................ 8  
Winterizing and Long-Term Storage .............................. 8  
Cleaning Tips ............................................................ 9-10  
Optional Cleaning Accessories .................................... 10  
Troubleshooting ...................................................... 11-12  
Specifications  
Operating pressure 1400 PSI  
Water volume  
Voltage  
Amp draw  
1.3 GPM  
120 V  
14 AMPS  
In USA Call:  
1-800-537-4129  
or visit our website:  
5.961-145 (2006873-04/04)  
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IMPORTANT PRECAUTIONS – Read First!  
GROUND FAULT CIRCUIT  
IMPORTANT SAFETY INSTRUCTIONS  
INTERRUPTER PROTECTION  
WARNING – When using this product basic  
precautions should always be followed,  
including the following:  
This pressure washer is provided with a  
ground-fault circuit-interrupter (GFCI) built into  
the plug of the power-supply cord. This device  
provides additional protection from the risk of  
electric shock. Should replacement of the plug  
or cord become necessary, use only identical  
replacement parts that include GFCI  
protection.  
• Read all the instructions before using the  
product.  
To reduce the risk of injury, close supervision  
is necessary when a product is used near  
children.  
• Know how to stop the pressure washer and  
bleed pressures quickly. Be thoroughly  
familiar with the controls.  
SERVICING OF A  
DOUBLE-INSULATED APPLIANCE  
In a double-insulated product, two systems of  
insulation are provided instead of grounding.  
No grounding means is provided on a double-  
insulated product, nor should a means for  
grounding be added to the product. Servicing  
a double-insulated 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.  
• Stay alert — watch what you are doing.  
• Do not operate the product when fatigued or  
under the influence of alcohol or drugs.  
• Keep operating area clear of all persons.  
• Do not overreach or stand on unstable  
support. Keep good footing and balance at  
all times.  
• Follow the maintenance instructions speci-  
fied in the manual.  
A double-insulated product is marked with the  
words “DOUBLE-INSULATION” or “DOUBLE-  
INSULATED”. The symbol “ ” may also be  
marked on the product.  
3
• This Pressure Washer Is Provided With A  
Ground Fault Circuit Interrupter Built Into The  
Power Cord Plug. If Replacement Of The Plug  
Or Cord Is Needed, Use Only Identical  
Replacement Parts.  
EXTENSION CORDS  
Use a sufficient gauge:Up to 25 ft = 12/2 AWG  
25 to 50 ft =10/2 AWG  
WARNING – Risk of Injection or Injury –  
Do Not Direct Discharge Stream At Persons.  
Use only extension cords that are intended for  
outdoor use. These extension cords are  
identified by a marking “Acceptable for use with  
outdoor appliances; store indoors while not in  
use.” Use only extension cords having an  
electrical rating not less than the rating of the  
product. Do not use damaged extension cords.  
Examine extension cord before using and  
replace if damaged. Do not abuse extension  
cord and do not yank on any cord to disconnect.  
Keep cord away from heat and sharp edges.  
Always disconnect the extension cord from the  
receptacle before disconnecting the product  
from the extension cord. If you are using an  
extension cord, it should always be completely  
unwound from the cable drum.  
• High pressure jets can be dangerous if  
subject to misuse. The jet must not be  
directed at persons, animals, electrical  
devices, or the machine itself.  
• Wear safety goggles.  
• Do not use acids, solvents, or any other  
flammable material in this product. These  
products can cause physical injuries to the  
operator and irreversible damage to the  
machine.  
• This machine has been designed for use with  
cleaning detergent supplied or recom-  
mended by the manufacturer. The use of other  
cleaning detergents may affect the operation  
of the machine and void the warranty.  
WARNING To reduce the risk of electrocution,  
keep all connections dry and off the ground.  
Do not touch plug with wet hands.  
• The Gun Safety Lock prevents the trigger from  
accidentally being engaged. This safety  
feature does not lock trigger in the on  
position.  
- SAVE THESE INSTRUCTIONS -  
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IMPORTANT PRECAUTIONS – continued  
Water Supply (Cold Water Only)  
• The water supply temperature must not  
exceed 104°F/40°C.  
• Water hose must be at least 3/4 inch in  
diameter.  
• Never use the pressure washer to draw in  
water contaminated with solvents, e.g.  
paint thinners, gasoline, oil, etc.  
• 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.  
• Always prevent debris from being drawn  
into the unit by using a clean water source.  
ASSEMBLY INSTRUCTIONS  
4
Step 1  
Step 2  
Insert the small end of the  
high pressure hose into place. the trigger gun to lock the hose  
in position.  
Step 3  
Pull out the locking slide from  
the right side of the trigger  
gun handle.  
Push the locking slide back into  
Step 4  
Connect the detergent suction  
tube to the pressure washer.  
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OPERATING INSTRUCTIONS  
Step 1  
Step 2 Insert the spray wand of your  
choice into the trigger gun. Push in and  
turn clockwise to lock spray wand in  
place.  
Connect the high pressure hose to the unit’s high  
pressure outlet.  
5
Step 3  
Step 4  
Connect garden hose to unit’s water inlet.  
Connect garden hose to the cold water  
source and turn water on completely.  
Step 5  
Step 6  
Plug the power cord into the power outlet. Unlock  
the lock of the trigger gun. Press “TEST”, then  
press “RESET” to assure proper connection to  
power. Trigger the gun to eliminate trapped air,  
wait for a steady flow of water to emerge from the  
spray nozzle.  
Turn on the pressure washer (I/ON).  
The motor starts only if the trigger of  
the gun is pulled and shuts off when  
the trigger is released.  
CAUTION: Never operate pressure  
washer without the water turned on.  
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GFCI INSTRUCTIONS  
Note:  
The actual  
appearance  
of the GFCI  
may be  
different  
from this  
illustration.  
Step 1 Plug the Ground Fault Circuit  
Interrupter (GFCI) into a working outlet  
Step 2 Press “TEST”, then press “RESET” to  
assure proper connection to power.  
USING THE ACCESSORIES  
Dirtblaster® spray wand  
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 (-).  
This wand features a 0º pencil jet which  
rotates 360º for maximum dirt cutting action,  
effectively increasing cleaning performance 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 materials, siding,  
painted surfaces, decks or autos.  
6
For higher pressure turn wand  
collar in the plus (+) direction.  
For lower pressure turn wand  
collar in the minus (-) direction.  
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.  
Step 1 To apply detergents install 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  
environment 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  
7
or call:  
In USA Call:  
1-800-537-4129  
or visit our website:  
The following Karcher detergents are  
available:  
• Vehicle Wash  
• House Wash  
• Degreaser  
• All Purpose Cleaner  
• Deck Wash  
Step 2 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  
Step 3 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.  
• Acid-based products  
These chemicals will harm the unit and  
will damage the surface being cleaned.  
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SHUTTING DOWN & CLEAN-UP  
Step 1  
Step 2  
Step 3  
Step 4  
Remove detergent suction  
tube from container and  
insert into 1 gallon of fresh  
water. Siphon water at low  
pressure for one minute.  
Turn off the water  
source.  
Press trigger to  
release water  
pressure.  
Turn the switch to “0”  
position and unplug  
cord from outlet.  
8
Step 5  
Disconnect the garden hose  
Step 6  
Disconnect the high pressure hose from the high pressure  
from the water inlet on the unit.  
outlet and engage the gun safety lock.  
TAKING A BREAK... five minutes or more  
Step 1  
Engage gun  
safety lock.  
Step 2  
Turn pressure  
washer to “0”  
position.  
MAINTENANCE INSTRUCTIONS  
Cleaning the  
Cleaning the  
water inlet filter  
Pull out the water inlet  
filter with flat-nose  
pliers and rinse filter in  
warm water.  
detergent filter  
Pull out the detergent  
suction tube and rinse  
filter in warm water.  
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WINTERIZING AND LONG-TERM STORAGE  
1. Disconnect all water connections.  
4. Store the machine and accessories in  
a room which does not reach freezing  
temperatures.  
2. Turn on the machine for a few seconds,  
until the water which had remained in  
the pump exits. Turn off immediately.  
Caution: Failure to follow the above  
directions will result in damage to the  
pump assembly and accessories.  
3. Do not allow high pressure hose to  
become kinked.  
CLEANING TIPS  
Deck Cleaning  
Cement Patios,  
(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 approximately 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 pressure.  
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 approximately 3-6 inches from  
the cleaning surface. Always clean from top to  
bottom and from left to right. For removing  
extremely stubborn stains, use Kärcher  
Rotating Nozzle Spray Wand.  
9
Cars, Boats & Motorcycles  
(with or without detergent)  
Pre-rinse vehicle with fresh water. If using  
Karcher Vehicle Wash, place detergent  
suction 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 surface.  
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.  
House Siding  
(with or without detergent)  
Pre-rinse cleaning surface with fresh water. If  
using Kärcher House Wash, place detergent  
suction tube directly into cleaning solution and  
apply to surface at low pressure (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  
Patio & Lawn Furniture  
(with or without detergent)  
Power Equipment & Gardening  
Pre-rinse furniture and surrounding area  
with fresh water. If using Kärcher All  
Purpose Cleaner, place detergent suction  
tube directly 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 pressure 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.  
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  
inconspicuous area should be cleaned to  
test spray pattern and distance for  
maximum cleaning results.  
Caution: Do not use rotating nozzle spray  
wand on cloth, plastic or other sensitive  
surfaces as it may cause damage.  
10  
• If painted surfaces are pealing or chipping,  
use extreme caution as pressure washer  
may remove the loose paint from the  
surface.  
OPTIONAL CLEANING  
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  
• Sandblasting Attachment  
• Detergent Foamer Attachment  
• Water Pumping Kit  
• Rotating Spray Wand  
• Flexible Spray Wand  
• Underbody Spray Wand  
Telescopic Spray Wand  
• 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”  
position.  
Turn switch to the “ON” position  
Power cord is not plugged in.  
Extension cord is too long.  
Plug in power cord.  
Replace extension cord with either  
Extension cord is not proper gauge. a 25 ft. 12/2 gauge cord or a 50  
Extension cord is damaged.  
ft. 10/2 gauge cord.  
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 high  
pressure.  
Diameter of garden hose is too  
small.  
Replace with a 3/4 inch garden  
hose.  
Water supply is restricted.  
Check garden hose for kinks,  
leaks and blockage.  
Not enough inlet water supply.  
Water inlet filter is clogged.  
Open water source full force.  
11  
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 wand. Run distilled vinegar through  
detergent suction tube.  
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TROUBLESHOOTING – continued  
Symptom  
Cause  
Solution  
No detergent.  
Detergent suction tube not properly Check connection.  
connected to the machine.  
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  
Loose fittings.  
Tighten fittings.  
connection leaks.  
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 gun.  
Carefully press in against the  
12  
spring tension and twist into the  
locked position.  
Broken o-ring or plastic insert.  
Pump is sucking air.  
Call Kärcher customer service  
hotline and order repair kit (part  
no. 2.883-111.0).  
Pump is noisy.  
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 Loose fittings.  
Check that all fittings are tight.  
to 10 drops per minute is  
permissible).  
Water seals are damaged or worn. Call service center.  
Oil seals are damaged or worn.  
Call service center.  
Oil Drip.  
1-800-537-4129  
If you encounter any additional  
difficulties not listed, please call our  
service center for help.  
In USA Call:  
1-800-537-4129  
or visit our website:  
Karcher Customer Support USA  
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