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www.stihl.com
©
AN
D
R
EAS
STIH
L AG
& C
o.
KG
20
16
0457 367 0033 A K16
Rotary surface cleaner
Nettoyeur de surfaces
rotatif
4900 500 3907
0000-GXX-2618-A0
0000-GXX-2619-A0
2
3
5
4
4
1
1
1.
0000-GXX-2620-A0
2.
3.
2
3
0000-GXX-2621-A0
0000-GXX-2622-A0
4
0000-GXX-2623-A0
5
Illustration
1
1)Coupling
2)Rotor Head: 4791 50
2
66
00
3)Rotor: 4791 502 5900
4)Nozzle: 4791 502 1000
5)Bristle ring: 4791 504 0500
SAVE THESE INSTRUCTIONS!
3.1 Warnings and Instructions
WARNING
￭ To reduce the risk of eye injury, always wear goggles that
are impact-rated and marked as complying with CSA Z94.
Wearers of prescription (Rx) eyewear should wear goggles
that can be worn over prescription lenses without disrupting
either the prescription eyewear or the proper fit of the
goggles.
￭ Keep bystanders, especially children, and animals out of
the work area. Never leave the pressure washer unattended
while running.
￭ Never allow minors to operate the pressure washer or rotary
surface cleaner.
￭ Do not overreach. Keep proper footing and balance at all
times. Special care must be taken in slippery conditions.
Never operate the rotary surface cleaner while standing on
a ladder or other insecure support.
￭ To reduce the risk of severe laceration and other personal
injury from fluid injection, shut off the pressure washer,
relieve system pressure and lock the spray gun trigger
before changing any spray nozzle or accessory, including
the rotary surface cleaner.
￭ To reduce the risk of laceration and injection of fluids below
the skin, never direct spray jet towards self, other persons
or animals. Keep hands, feet and other parts of your body
clear of the spray nozzles during operation. Never reach
under the spray cover when the pressure washer is on. If an
accident does occur and the spray appears to have
penetrated the skin, seek emergency medical care. Do not
treat as a simple cut.
￭ The powerful water jet from the rotary surface cleaner
causes reactive forces in a direction opposite to the
direction of spray (kickback). Hold the spray gun and lance
firmly while you are working to reduce the risk of personal
injury from loss of control.
￭ To help control the powerful spray jet, always work with
enough downward pressure to keep the rotary cleaner close
to the ground. Keep the spray nozzles pointed downward at
the surface being cleaned.
￭ Never operate your rotary surface cleaner if it is modified,
damaged, improperly adjusted or maintained, or not
completely and securely assembled. Before starting work,
ensure that hoses, fittings and couplings are properly
installed and secure and that all components are in good
working order. Never exceed the maximum operating
pressure or temperature.
￭ If you experience unusual vibration in the rotary surface
cleaner during operation, shut off the pressure washer
immediately and have the accessory inspected by an
authorized STIHL servicing dealer before further use.
￭ To reduce the risk of loss of control and personal injury,
never operate the pressure washer with the spray gun
trigger wired in the open position. Never modify the
pressure washer controls or the rotary surface cleaner in
any way.
￭ STIHL pressure washers and the rotary surface cleaner are
designed for use with water alone or with a detergent
specifically designed and approved for use with pressure
washers. Follow the detergent manufacturer's instructions
for proper preparation and dilution, as well as safe use and
disposal.
￭ To reduce the risk of fire/explosion resulting in serious injury
or property damage, never spray flammable liquids. Never
spray fluids that contain solvents or undiluted acids (e.g.,
gasoline, heating oil, paint thinner or acetone). The spray is
highly combustible, explosive and poisonous.
NOTICE
To reduce the risk of property damage, begin work on a lower
pressure setting and increase pressure as necessary. Keep
the rotary surface cleaner in motion during work and take care
not to damage the surface being cleaned.
The rotary surface cleaner is designed to clean flat exterior
surfaces, including driveways and sidewalks. It is designed for
use only with a cold water pressure washer.
Illustration 2
► Shut off the pressure washer and squeeze the spray gun
trigger to relieve system pressure.
► Lock the spray gun trigger.
► Pull back the coupling sleeve (1) on the spray lance as far
as it will go and hold it there.
► Push the spray lance onto the rotary surface cleaner
coupling (2) and push the coupling sleeve forward as far as
it will go (3).
► Pull the spray lance and confirm that it is attached securely.
Illustration 3
Keep the rotary surface cleaner in motion whenever the spray
gun trigger is activated.
► Walk behind the rotary surface cleaner while cleaning.
► Slow down if cleaning is uneven or if spraying results in
striped surfaces.
If small stones or debris accumulate under the spray cover, tip
the unit away from the operator, bystanders, animals and all
other objects up to 45°. Smaller stones and foreign material
should be expelled from the spray cover.
7.1 Maintenance and Care
Protect the unit from frost and freezing conditions. Drain water
from the rotary surface cleaner in cold temperatures.
Ensure that bristles are not bent or deformed during storage.
7.2 Cleaning the Spray Nozzles
Nozzle orifices are extremely small and may become clogged
with foreign material, such as dirt. Clean the nozzles
immediately if they become partially clogged or the spray
pattern may becomes distorted.
► Shut off the pressure washer and squeeze the spray gun
trigger to relieve system pressure.
► Lock the spray gun trigger.
► Disconnect the spray lance from the rotary surface cleaner.
► Use a 9/16” wrench to remove the nozzles.
► Flush the coupling with water to loosen particles and
remove any obstructions from the nozzles (Illustration 4).
► Re-attach the nozzles to the rotor using thread seal
(plumber's tape) to prevent leaks (Illustration 5).
► Align the slots of the nozzles with the rotor (Illustration 6).
► Test the function of the rotary surface cleaner, keeping
hands and feet and other parts of your body away from the
water jets.
7.3 Replacing the Rotor
► Use a 9/16” wrench to block the rotor head (Illustration 7).
► Turn the rotor counterclockwise and remove it from the rotor
head.
► Mount the new rotor to the rotor head. Use thread seal
(plumber's tape) to prevent leaks
(Illustration
8
).
► Ensure that the rotor is functioning properly before starting
work.
– Minimum Water throughput: 2.3 GPM
– Maximum Pressure: 4200 PSI
– Optimum Performance: 2100 PSI to 3800 PSI
– Maximum Water temperature: 125 °F (52 °C)
Never exceed the maximum operating pressure or
temperature.
Observe all federal, state and local disposal rules and
regulations.
STIHL products must not be thrown in the household trash or
disposed of except as outlined in these instructions. Take the
product, accessories and packaging to an approved disposal
site for environmentally friendly recycling.
Contact your STIHL servicing dealer for the latest information
on waste disposal.
1 Main Parts
2 Introduction
Because the rotary surface cleaner sprays a
powerful, rotating water jet, special safety
precautions must be observed to reduce the risk of
personal injury.
It is important that the operator read, fully
understand and observe the safety precautions
and warnings in these instructions and the
instruction manual for the pressure washer. Read
both documents before use and periodically
thereafter. Careless or improper use may cause
serious or fatal injury. Never loan your rotary
surface cleaner without the instructions.
3 Safety Precautions
4 Intended Use
5 Connection to the Spray Lance
6 Operation
7 Maintenance and Care
8 Specifications
9 Disposal
