Karcher K 5.50 M User Manual
High Pressure Washer Operator Manual
Overview ............................................................... 2
Precautions ....................................................... 2-4
Assembly Instructions .......................................... 4
Operating Instructions .......................................... 5
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
Working Pressure 9000 kPa
Max. Pressure 1600 PSI
Max. Water Volume 1.6 GPM
Voltage 120 V
Amp Draw 13 AMPS
K 5.50 M
Please keep the original box,
packaging and receipt.
Before operating this unit,
please read this manual
thoroughly and retain it for
future reference.
5.960-821 (1999407-04-03)
OVERVIEW High Pressure Washer
Machine includes
1 Handle
2 Spray wand / Wash brush holder
3 Handle posts (qty. 2)
4 High pressure hose reel
5 On/Off switch
6 Water inlet
7 Support leg
8 Coupling
9 Quick connect adapter
10 Trigger gun
11 Quattro nozzle
12 Wash brush
13 Trigger gun safety lock
14 High pressure hose
15 Power cord
16 Trigger gun holder
17 Detergent container
18 Detergent suction tube and
filter with metering valve
19 Package of 6 screws (not pictured)
2
NEVER!
Never point nozzle at people or animals.
Never drink alcohol or use drugs while operating this equipment.
Never operate while standing in water.
Never touch plug with wet hands.
Never let electrical connections rest in water.
Never operate pressure washer without the water turned on.
Never use hot water.
THE BEST ANTI-FREEZE PROTECTION IS PROVIDED BY
USING AND STORING THE MACHINE IN SHELTERED SPACE.
IMPORTANT PRECAUTIONS – Read First!
Safety Warnings
When using this product basic precautions
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, electrical 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.
• 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.
• The Trigger Gun Safety Lock PREVENTS the
trigger from accidentally being engaged. This
safety feature DOES NOT lock trigger in the
on position.
WARNING
• DO NOT USE WITH FLAMMABLE LIQUIDS
AND TOXIC CHEMICALS.
• INJECTION HAZARD: EQUIPMENT CAN
CAUSE SERIOUS INJURY IF THE SPRAY
PENETRATES THE SKIN. DO NOT POINT
THE GUN AT ANYONE OR ANY PART OF
THE BODY. IN CASE OF PENETRATION
SEEK MEDICAL AID IMMEDIATELY.
• THIS SYSTEM IS CAPABLE OF PRODUCING
1600 PSI. TO AVOID RUPTURE AND
INJURY, DO NOT OPERATE THIS PUMP
WITH COMPONENTS RATED LESS THAN
1600 PSI WORKING PRESSURE
(INCLUDING BUT NOT LIMITED TO SPRAY
GUNS, HOSE AND HOSE CONNECTIONS).
• BEFORE SERVICING, CLEANING OR REMOVAL OF ANY PARTS, SHUT OFF POWER
AND RELIEVE PRESSURE.
• DO NOT SPRAY ELECTRICAL APPARATUS
AND WIRING.
• IF CONNECTION IS MADE TO A POTABLE
WATER SYSTEM, THE SYSTEM SHALL BE
PROTECTED AGAINST BACKFLOW.
GROUNDING INSTRUCTIONS
This product must be grounded. If it should
malfunction or breakdown, grounding provides
a path of least resistance for electric current to
reduce the risk of electric shock. This product
is equipped with a cord having an equipmentgrounding conductor and a grounding plug. The
plug must be plugged into an appropriate outlet
that is properly installed and grounded in
accordance with all local codes and ordinances.
DANGER – Improper connection of the
equipment-grounding conductor can result in
a risk of electrocution. Check with a qualified
electrician or service personnel if you are in
doubt as to whether the outlet is properly
grounded. Do not modify the plug provided with
the product – If it will not fit the outlet, have a
proper outlet installed by a qualified electrician.
Do not use any type of adaptor with this product.
Extension Cords
Use a sufficient gauge:
Up to 25 ft = 12/3 AWG
25 to 50 ft = 10/3 AWG
Use only 3-wire extension cords that have 3prong grounding-type plugs and 3-pole cord
connectors that accept the plug from the
product. 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.
Caution
• Follow the maintenance instructions
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.
3
IMPORTANT PRECAUTIONS – continued
Water Supply (Cold Water Only)
• Water hose must be at least a 1/2 inch or
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 running 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
• Always prevent debris from being drawn into
ASSEMBLY INSTRUCTIONS
4
water contaminated with solvents, e.g.
paint thinners, gasoline, oil, etc.
NOTE: Dirt in the feed water will
damage the unit. To avoid this risk,
we recommend fitting a water filter.
the unit by using a clean water source and an
accessory water filter if required.
Step 1
Assemble the support leg by
aligning the two holes to the
machine. Tighten each of the
two screws provided.
Step 4
Pull out the locking slide from
the right side of the trigger gun
handle. Insert the small end of
the high pressure hose into
place.
Step 2
Slide the two handle posts
into the mobile adaptor and
line up the holes. Insert two
screws and tighten.
Step 5
Push the locking slide back into
the trigger gun to lock the hose
in position.
Step 3
Assemble the handle by
aligning the holes to the
handle posts. Insert two
screws and tighten.
OPERATING INSTRUCTIONS
Step 1
Insert the quatro nozzle into the trigger gun.
Press in against the spring tension and twist
into the locked position.
Step 3
Connect garden hose to the cold water
source and turn water on completely.
Step 2
Connect the garden hose to unit’s water inlet
using the quick connect adapter and coupling.
5
Step 4
Plug the power cord into the power outlet.
Unlock the lock of the trigger gun (A). Trigger
the gun (B) to eliminate trapped air, wait for a
steady flow of water to emerge from the spray
nozzle.
Step 5
Turn on the pressure washer (I).
NOTE: This unit is equipped with a
pressure switch. The motor only starts up
when the trigger on the gun is pulled.
The motor shuts off when the trigger is
released.
USING THE ACCESSORIES
Variopower Nozzle
Quattro Nozzle
High pressure
pencil jet
cleaning
Selecting the jet
Release the trigger of the handgun.
Rotate the nozzle head until the symbol is aligned with the marking on the spray lance.
Note: The marking on the spray lance must be up during operation.
6
Wash Brush
This brush is ideal for removing stubborn dirt
and stains from finished surfaces.
Use with detergents only.
High pressure
fan jet
cleaning
Rotating jet for
maximum dirt
cutting action
Low pressure
fan jet for
detergent
injection
Warning
TO AVOID SERIOUS INJURY, NEVER POINT SPRAY NOZZLE AT YOURSELF,
OTHER PERSONS OR ANIMALS
WORKING WITH DETERGENTS
Detergents can only be applied at low pressure.
Step 1
Install the Wash brush or Quattro nozzle. Turn
Quattro Nozzle to Low pressure position.
Rotate the spray lance in the direction of “ ”
until reaching the stop.
Note: No detergent in high-pressure mode
Step 2
Fill detergent tank with Kärcher detergent.
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, from bottom to top. Do not allow
detergent to dry on surface.
For best results see Cleaning Tips on
pages 9 & 10 for specific information on
how to clean different surfaces.
Always Use Kärcher Detergents
for Best Results.
Kärcher 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 Kärcher
Detergents, check your retailer or call:
1-800-465-4980
The following Kärcher detergents are
available:
• Pressure Wash
• Deck Wash
• Degreaser
• Touchless Vehicle Wash
1-800-465-4980
7
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.
SHUTTING DOWN & CLEAN-UP
Step 1
Remove detergent suction
tube from jug and insert
into 1 gallon (5 L) of fresh
water. Siphon water at
low pressure for one
minute.
8
Step 5
Disconnect the garden hose
from the water inlet on the unit.
Step 2
Turn the switch to
off (0) position and
unplug cord from
outlet.
Step 6
Engage the gun safety lock.
Step 3
Turn off the water
source.
TAKING A BREAK... five minutes or more
Step 1
Engage gun
safety lock.
Step 4
Press trigger to
release water
pressure.
Step 2
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. DO NOT store near
furnance 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.
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