Stihl RE 90 Notice D'emploi page 23

9 Connecting the Water Supply
Connecting the water filter
If the pressure washer is to be operated with sandy water or
with water from cisterns, a water filter must be connected in-
line between the water hose and the pressure washer. The
water filter filters sand and dirt out of the water and thus
protects the components of the pressure washer from
damage.
To connect the water filter:
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► Unscrew the coupling (1).
► Screw the water filter (2) onto the connector (3) and
tighten by hand.
► Screw the coupling (1) onto the water filter (2) and tighten
by hand.
Connecting the Water Hose
The water supply must meet the following requirements:
– Minimum length of water hose: 30 ft. (10 m)
– Maximum water inlet pressure: 145 psi (1 MPa / 10 bar)
To connect the pressure washer to the mains water supply:
► Switch off the pressure washer, @ 10.2.
► Disconnect the pressure washer from the power supply.
► Remove all sand and debris from the connections and
couplings.
► Connect the water hose to the water supply.
► Fully open the tap to flush any sand or dirt from the hose.
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► Shut off the water supply.
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► STIHL recommends attaching the water filter (2).
The water filter helps keep sand and dirt out of the pump,
thereby helping to protect components from damage.
► Screw the coupling (1) onto the pressure washer or water
filter (2) and tighten by hand.
► Connect the water hose (4).
► If the spray lance is attached to the spray gun: remove the
spray lance.
► Turn on the water supply.
► Pull the spray gun trigger until a steady, even water jet is
delivered from the spray gun.
► Switch off the pressure washer.
► Lock the spray gun trigger.
► Connect the spray lance.
► Insert the nozzle, @ 8.4.1.
NOTICE
Running the pressure washer without water will cause the
pump to overheat, which may result in permanent damage.
Always connect and turn on the water supply to the pump
before starting the motor. Do not operate the pressure
washer without water.
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