Model K 210 M
Part No. 1.072-680.0
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 1200 PSI
Water volume
Voltage
Amp draw
1.3 GPM
120 V
14 AMPS
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 product. 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
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
3
Step1 Slide the spray wand
extension into the trigger gun. Turn
the wand collar onto the gun threads
until tight.
Step2 Connect the detergent
suction tube to the pressure washer.
OPERATING INSTRUCTIONS
Step1 Connect the high pressure hose to
Step2 Insert the spray wand into
the wand extension. Push in and turn
clockwise to lock spray wand in place.
the unit’s high pressure outlet.
4
Step3 Connect garden hose to unit’s
Step4 Connect garden hose to
the cold water source and turn water
on completely.
water inlet.
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 (I) the pressure
washer. The motor starts only if the
trigger of the gun is pulled and shuts
off when the trigger is released.
USING THE ACCESSORIES
The pressure washer has two fully automatic pressure settings, depending on the wand or
nozzle installed.
Rotating spray wand
Soap Nozzle
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. Use extreme caution when clean-
ing decks, siding, and other sensitive
surfaces as the rotating spray wand may
cause damage if not used correctly.
This nozzle attaches directly to the spray
wand extension and is used to apply deter-
gents to the work area.
WARNING TO AVOID
SERIOUS INJURY, NEVER
POINT SPRAY NOZZLE AT
YOURSELF, OTHER PERSONS
OR ANIMALS
5
WORKING WITH DETERGENTS
Karcher Pressure washers operate at two pressures. The high pressure is used for cleaning,
you cannot apply detergents when working at high pressure. To apply detergents you must
be operating at low pressure.
For best results see Cleaning
Tips on pages 8 & 9 for specific
information on how to clean
different surfaces.
Step1 To Install soap nozzle simply
insert into the spray wand extension. Push
in and turn clockwise to lock into position.
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.
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.
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.
4. Store the machine and accessories in
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.
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.
8
CLEANING TIPS – continued
Barbecue Grills, Outdoor
Power Equipment &
Recommendations
• Before cleaning any surface an inconspic-
uous area should be cleaned to test spray
pattern and distance for maximum clean-
ing results.
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.
Use extreme caution when cleaning decks,
siding, and other sensitive surfaces as the
rotating spray wand may cause damage if
not used correctly.
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
9
spray nozzle approximately 6 inches from
the cleaning surface. For best results, clean
from top to bottom and from left to right.
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
• Telescopic Spray Wand
• Pipe Drain Cleaner
• House Washing Wand
• Extension Wand
• Rotating Spray Wand
• Flexible Spray Wand
• Underbody Spray Wand
• Floor Washing Tool
• Detergent Foamer Attachment
• Water Pumping Kit
• Water Suction Hose
• Extension Hose 25’
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. 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.
Soap nozzle installed.
Remove soap nozzle and connect
spray wand.
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.
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.
Soap nozzle not installed
Attach soap nozzle to spray wand
extension.
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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