Karcher K 3.79 M User Manual

K 3.79 M

High Pressure Washer
Operator Manual

Overview ................................................. 2

Precautions ........................................ 3 - 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 - 9

Cleaning Tips ................................... 9 - 10

Optional Cleaning Accessories .............10

Troubleshooting ................................ 11-12

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Specifications

Working Pressure ...................... 9000 kPa

............................................... 1300 PSI

Max. Pressure............................ 1500 PSI

Max. Water volume ..................... 1.6 GPM

Voltage ............................................. 120 V

Amp draw ................................... 13 AMPS

Please keep the original box, packaging and receipt.
Before operating this unit, please read this manual thoroughly and
retain it for future reference.

Manual Part No. 5.961-170.0 11/03ENPart No. 1.423-922.0

OVERVIEW

For household use only!

2

6

11

8

7

3

13

12

2

1. Power cord

2. Trigger gun

3. Trigger gun safety lock

4. High pressure hose

5. Water inlet with filter (not shown)

6. Transport handle

7. Accessory compartment (not shown)

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.

5

9

8. Detergent tank

9. High pressure outlet

10. On/Off switch

11. Detergent tank cap with detergent
suction hose

12. Vario power spray wand

13. Rotary spray wand

10

4

1

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 SPRAY ELECTRICAL APPARATUS
AND WIRING.

• 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
9000 KPA (1300 PSI). TO AVOID RUPTURE
AND INJURY, DO NOT OPERATE THIS PUMP
WITH COMPONENTS RATED LESS THAN
9000 KPA (1300 PSI) WORKING PRESSURE
(INCLUDING BUT NOT LIMITED TO SPRAY
GUNS, HOSE AND HOSE CONNECTIONS).

• BEFORE SERVICING, CLEANING OR
REMOVING ANY PARTS, SHUT OFF POWER
AND RELIEVE PRESSURE.

Extension Cords

Use a sufficient gauge:
Up to 25 ft = 12/3 AWG.
25 to 50 ft =10/3 AWG.
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.

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 equipment-grounding 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 adapter
with this product.

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 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.

ASSEMBLY INSTRUCTIONS

4

Step 1

Step 2 Step 3

• Never use the pressure washer to draw in
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.

• Always prevent debris from being drawn
into the unit by using a clean water source
and an accessory water filter if required.

Save these instructions!

!

Step 4

5

Step 5

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 to lock the hose in
position.