Karcher K 2.900M User Manual
K 2.900M
English 2
Español 16
Français 30
5.961-668.0 07/05
HIGH PRESSURE WASHER OPERATOR MANUAL
Model Overview 3
Important Safety Instructions 4
Assembly Instructions 6
Operating Instructions 7
GFCI Instructions 8
Using the Accessories 8
Working with Detergents 9
Shutting Down & Clean Up 10
Care and Maintenance Instructions 11
Winterizing and Long-Term Storage11
Cleaning Tips 12
Troubleshooting 14
Specifications
Operating pressure 1550 PSI
Water volume 1.2 GPM
Amp draw 13 AMPS
Voltage 120 V
Safety Alert Symbols
DANGER
indicates “an imminently hazardous situation which, if not avoided, will result in
death or serious injury.’’
WARNING
indicates “a potentially hazardous situation which, if not avoided, could result in
death or injury.’’
CAUTION
indicates “a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury’’ or in property
damage incidents.
Part No. 1.671-343.0
Serial no.
Kärcher Customer Support USA
Call: 1-800-537-4129 for help or visit
our website:
www.karcher-usa.com/home
Please take a moment to register your
presure washer online at
www.karcher-usa.com/warranty
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MODEL OVERVIEW
1 On/OFF switch
2 High pressure outlet
3 Detergent suction tube with filter
4 Dirtblaster® (Rotating spray wand)
5 Vario Power Spray wand
6 Trigger gun
7 Trigger gun safety lock
8 High pressure hose
9 Water inlet with garden hose
connector
10 Power cord with Ground Fault Circuit
Interrupter (GFCI)
11 Trigger Gun Holder
12 Spray Wand Storage
13 Handle
14 Collapsable transport handle
15 Hose/Cord Caddy
CAUTION
This unit has been designed for use with
cleaning detergents recommended by
the manufacturer. The use of other
cleaning detergents may affect the operation of the machine and void the warranty.
For household use only!
English 3
IMPORTANT SAFETY INSTRUCTIONS
WARNING
When using this product basic precautions should always be followed, including the following:
Read all the instructions before us-
ing the product.
To reduce the risk of injury, close su-
pervision is necessary when a product is used near children.
Know how to stop the product and
bleed pressures quickly. Be thoroughly familiar with the controls.
Stay alert – watch what you are do-
ing.
Do not operate the product when fa-
tigued or under the influence of alcohol or drugs.
Keep operating area clear of all per-
sons.
Do not overreach or stand on unsta-
ble support. Keep good footing and
balance at all times.
Follow the maintenance instructions
specified in the manual.
This Product 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.
Risk of Injection or Injury – Do Not
Direct Discharge Stream At Persons.
High pressure jets can be dangerous
if misused. The jet must not be directed at persons, animals, electrical
devices, or the machine itself.
Wear safety goggles.
Do not use acids and solvents in this
product. These products can cause
physical injuries to the operator and
irreversible damage to the machine.
To reduce the risk of electrocution,
keep all connections dry and off the
ground. Do not touch plug with wet
hands.
The Trigger Gun Safety Lock PRE-
VENTS the trigger from accidentally
being engaged. This safety feature
DOES NOT lock trigger in the ON
position.
Do not use extension cord with this
unit.
SAVE THESE INSTRUCTIONS
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GROUND FAULT CIRCUIT
INTERRUPTER PROTECTION
WATER SUPPLY
(Cold Water Only)
This product is supplied with a Ground
Fault Circuit Interrupter (GFCI) built into
the power cord plug. This device provides additional protection from the risk
of electric shock. If power is interrupted
in the line, the GFCI will automatically
re-close the circuit to the load after power is restored. Depending on the GFCI
model, it may be necessary to manually
operate the reset button to restore power to the GFCI load circuit. If replacement of the plug or cord is needed use
identical replacement parts.
SERVICING OF A DOUBLE-
INSULATED PRODUCT
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. A doubleinsulated product is marked with the
words “double-insulation” or “double-in-
sulated”. The symbol “” may also be
marked on the product.
CAUTION
When connecting the water inlet to the
water supply mains, local regulations of
your water company must be observed.
In some areas the unit must not be connected directly to the public drinking water supply. This is to ensure that there is
no feedback of chemicals into the water
supply. Direct connection via a receiver
tank or backflow preventer, for example,
is permitted.
Dirt in the feed water will damage the
unit. To avoid this risk, we recommend
fitting a water filter.
Garden hose must be at least 5/8
inch in diameter.
Flow rate of water supply must not
fall below 2 GPM (gallons per
minute).
Flow rate can be determined by run-
ning the water for one minute into an
empty 5-gallon container.
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.
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STEP 1:
Î
Î STEP 2:
ASSEMBLY INSTRUCTIONS
Î STEP 3:
Attach the high pressure hose to the
trigger gun. Pull out the locking slide
from the right side of the trigger gun
handle (A), and insert the small end
of the high pressure hose into place
(B). Push the locking slide back into
the trigger gun (C) to lock the hose in
position.
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OPERATING INSTRUCTIONS
Î STEP 1:
Connect the high pressure hose to
the unit’s high pressure outlet.
Î STEP 2:
Insert the spray wand of your choice
into the trigger gun. Press in against
the spring tension and twist into
locked position.
Î STEP 4:
Connect garden hose to the cold water source and turn water on completely. Plug the power cord into the
power outlet.
Î STEP 5:
Unlock the Safety lock. Trigger the
gun to eliminate trapped air, wait for
a steady flow of water to emerge
from the spray nozzle.
Î STEP 3:
Connect garden hose to unit’s water
inlet.
Î STEP 6:
Turn on the high 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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GFCI INSTRUCTIONS
STEP 1: Plug the Ground Fault Cir-
Î
cuit Interrupter (GFCI) into a working
outlet.
Î STEP 2: Press ’’TEST’’, then press
’’RESET’’ to assure proper connection to power.
Note: The actual appearance of the
GFCI may be different from this illustration.
USING THE ACCESSORIES
1
2
WARNING
To avoid serious injury never point
spray nozzle at yourself, other persons or animals.
Vario Power Spray Wand
The Vario Power Spray Wand allows
you to adjust the cleaning pressure.
To clean at maximum pressure, the
wand must be positioned to the high
pressure setting (Max).
For lower pressure turn the wand
collar in the minus (Min) direction.
To apply detergent, the wand must
be positioned to the lower pressure
setting (Min).
Dirtblaster®
This nozzle features a 0º pencil jet
which rotates 360º for maximum dirt
cutting action, effectively increasing
cleaning performance up to 50%.
This nozzle 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.
Always test an inconspicuous area
before cleaning with the Dirtblaster
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WORKING WITH DETERGENTS
Detergents can only be applied at
low pressure (Min.).
Î STEP 1:
Install the Vario Power Spray Wand.
Set the spray wand to the low pressure setting (Min.).
Î STEP 2:
Fill a container with Kärcher detergent. Place the filter end of detergent
suction tube into the container.
For best results see Cleaning Tips
for specific information on how to
clean different surfaces.
Always Use Kärcher Detergent for
Best Results
Kärcher biodegradable detergents are
specially formulated to protect the environment and your pressure washer. The
special formula won’t clog the suction
tube filter and will protect the internal
parts of the pressure washer for a longer life. For Kärcher Detergents, check
your retailer or visit our website:
www.karcher-usa.com/home
The following Kärcher detergents are
available:
One Gallon ready to use
All Purpose & Vehicle Cleaner
Deck & Patio Cleaner
Heavy Duty Degreaser
Exterior House Cleaner
Î STEP 3:
Turn on the pressure washer (I).
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.
Î STEP 4:
Always draw fresh water through
the detergent suction tube when
done, to rinse/flush any remaining
detergents from the injection system.
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.
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TAKING A BREAK ..five minutes or more
STEP 1:
Î
Release trigger and engage gun
safety lock.
Î STEP 2:
Turn pressure washer to OFF (O)
position.
SHUTTING DOWN & CLEAN UP
Î STEP 1:
Turn the switch to OFF (0) position
and unplug cord from outlet.
Î STEP 2:
Turn off the water source.
Î STEP 5:
Disconnect the high pressure hose
from the high pressure outlet.
Î STEP 3:
Press trigger to release water pressure.
Î STEP 4:
Disconnect the garden hose from
the water inlet on the unit.
10 English
Î STEP 6:
Release trigger and engage gun
safety lock.
WINTERIZING AND LONG-TERM STORAGE
Î 1: Disconnect all water connections.
Î 2: Turn on the machine for a few
seconds, until the water which had
remained in the pump exits, turn off
immediately.
Î 3: Do not allow high pressure hose
to become kinked.
Î 4: Store the machine and accesso-
ries in a room which does not reach
freezing temperatures. DO NOT
store near furnace or other sources
of heat as it may dry out the pump
seals.
CAUTION
Failure to follow the above directions
will result in damage to the pump assembly and accessories.
Kärcher also recommends the regular
practice of using a pump protector like
“Kärcher Pump Guard’’ to help during
storage in the winter months.
CARE AND MAINTENANCE INSTRUCTIONS
Cleaning the water inlet filter Cleaning the detergent inlet filter
Pull out the water inlet filter with flatnose pliers and rinse out in warm water.
Note: if you pull out the water inlet filter
the washer gets out too. Take care to
mount it again after cleaning the filter.
Pull it out and rinse out in warm water.
Maintenance
The unit is maintenance-free.
English 11
CLEANING TIPS
Deck Cleaning
(with or without detergent). Pre-rinse
deck and surrounding area with fresh
water. If using Kärcher Deck Wash, apply to surface at low pressure. For best
results, limit your work area to smaller
sections of approximately 25 square
feet. Allow 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.
House Siding
(with or without detergent). Pre-rinse
cleaning surface with fresh water. If using Kärcher Pressure Wash, 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
Pressure Wash to remain on surface 13 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 (not included) 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.
Cement Patios, Brick and Stone
(with or without detergent). Pre-rinse
cleaning surface with fresh water. If using Kärcher Pressure Wash or Degreaser, apply to surface at low pressure. For
best results, limit your work area to
smaller sections of approximately 25
square feet. Allow Pressure Wash or
Degreaser 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 the Dirtblaster Nozzle.
Cars, Boats & Motorcycles
(with or without detergent). Pre-rinse
vehicle with fresh water. If using Kärcher Touchless Vehicle Wash, 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 (not included) 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.
12 English
Barbecue Grills, Outdoor Power
Equipment & Gardening Tools
(with or without detergent). Pre-rinse
cleaning surface with fresh water. If using Kärcher Pressure Wash or Degreaser, apply detergent at low pressure.
Allow Pressure Wash 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.
Patio & Lawn Furniture
(with or without detergent). Pre-rinse
furniture and surrounding area with
fresh water. If using Pressure Wash, apply to surface at low pressure. Allow
Pressure Wash to remain on surface 13 minutes. Do not allow detergent to dry
on surface. If needed use special Wash
Brush Attachment (not included) 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.
Recommendations
Before cleaning any surface an in-
conspicuous 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.
When using on surfaces which might
come in contact with food, flush sur-
faces with plenty of drinking water.
For additional cleaning tips, visit our
website at www.karcher-usa.com/
home
English 13
TROUBLESHOOTING
CAUTION
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.
Power cord is not plugged in. Plug in power cord.
Electrical outlet does not
supply adequate power.
Tripped circuit breaker. Switch off pressure washer.
Unit does not reach
high pressure.
Output pressure
varies high and low.
Diameter of garden hose is
too small.
Water supply is restricted. Check garden hose for kinks,
Not enough inlet water
supply.
Water inlet filter is clogged. Remove filter and rinse out in
Spray wand is on low
pressure position.
Not enough inlet water
supply.
Pump is sucking air. Check that hoses and fittings
Water inlet filter is clogged. Remove filter and rinse out in
Discharge nozzle is
obstructed.
Calcified gun, hose or spray
wand.
Turn switch to the “ON” (I)
position
Try a different outlet.
GFCI will reset once the
temperature of the unit drops.
Replace with a 5/8 inch or
larger garden hose.
leaks and blockage.
Open water source full force.
warm water.
Turn spray wand to high
pressure position.
Turn water on full force.
Check garden hose for kinks,
leaks or blockage.
are air tight. Turn off machine
and purge pump by
squeezing trigger gun until a
steady flow of water emerges
through the nozzle.
warm water.
Blow out or remove debris
with a fine needle.
Run distilled vinegar through
detergent suction tube.
14 English
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