KARCHER Surface Cleaner 9.802-898.0
OPERATOR’S MANUAL
PRESSURE WASHER
8
GENERAL OPERATING TECHNIQUES
NOZZLE SELECTION &
INSTALLATION
1. Your Rotary Surface Cleaner will come installed with
one set of 25020 nozzles (25
degree and 2.0 orice).
On SCW-4.0/40 GL will come
with one set of 25025 nozzles
(25 degree and 2.5 orice)
a. The minimum orice size to
be used in your Rotary Surface
Cleaner is half that which is
being used in your pressure washer.
Example: If your pressure washer uses a size 5 orice,
you will need to use a size 2.5 orice in your Rotary
Surface Cleaner.
(Two nozzles are inserted in the Rotary Surface
Cleaner, therefore; two nozzles x size 2.5 orice =
size 5 orice.)
b. The nozzles being used should have a 15° - 25°
spray pattern; anything less than a 15° spray pat-
tern can damage the area being cleaned. Anything
more than 25° may not allow the bar to rotate.
2. Nozzles should be screwed into the rotating bar. The
spray fan should be parallel to the Rotating Bar.
(See gure 1.)
SET-UP:
1. Locate the high pressure discharge hose on your
pressure washer and ensure it is securely con-
nected to the water outlet of the pressure washer.
Quick connect the other end of the high pressure
discharge hose to the gun on the Rotary Surface
Cleaner.
2. Connect the water supply hose, one end to your
pressure washer, the other end to a pressurized
water supply.
SURFACE PREPARATION
1. Clear any loose debris from the area to be cleaned.
2. Never attempt to clean surface with objects that
protrude from the surface being cleaned. Striking
any raised obstacle during operation will damage
machine. If contact does occur and results in vibra-
tion when operating machine, STOP and replace
spray bar.
CAUTION: Risk of Injury or damage to machine!
NEVER OPERATE THE UNIT IF IT BEGINS TO VI-
BRATE! Shutdown the unit and tighten the rotating
bar, bolts and ttings.
PRE-START INSPECTION
PROCEDURES
1. Inspect Rotary Surface Cleaner before each use.
2. Ensure all connections are secure. Turn the water
supply completely "ON". (DO NOT START PRES-
SURE WASHER!)
3. Inspect hoses for kinking, cut or leaks. If found, DO
NOT USE HOSE!
Replace damaged hoses before starting.
4. Unlock the trigger gun and squeeze the trigger.
Water will begin owing from the nozzles of the
Surface Cleaner. Ensure nozzles are not clogged
and spray pattern is not erratic. Change nozzles
before proceeding if problems exist.
5. Be sure that all damaged parts are replaced and
that the mechanical problems are corrected prior to
operation. If you need service, contact an Authorized
Service Center.
Figure 1
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