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5 IMPORTANT SAFETY INSTRUCTIONS
in a polarized electrical outlet only one way.
To reduce the risk of electric shock:
► Do not change the plug in any way.
► If the plug does not fit fully in the outlet,
reverse the plug. If it still does not fit, use a
different outlet or contact a qualified electri‐
cian to install the proper outlet.
5.7
Connecting the Water Supply
WARNING
■ When the spray gun trigger is released, fluid
recoil may push non-potable water back into
the potable water system.
► Do not connect the pressure washer
directly to a potable water system.
► If hooking up the pressure washer to a pot‐
able water system, a backflow preventer
must be installed between the water tap
and the hose. The design of the backflow
preventer must comply with all applicable
water management codes and regulations
in your area.
■ If potable water has passed through the back‐
flow preventer, it can no longer be regarded as
potable water. To prevent contamination of
potable water:
► Follow the rules laid down by the local
water supply company to prevent water
flowing back from the pressure washer into
the drinking water main.
► Do not use the pressure washer with dirty
water (i.e., water that contains sand, dirt or
other particulate matter). If there is a risk
that the water supply is dirty, use an appro‐
priate water filter or find an alternative water
source.
5.8
Using the Pressure Washer
5.8.1
Before Operation
WARNING
■ Misuse or unauthorized use may result in per‐
sonal injury and property damage.
► Use the pressure washer only as described
in this instruction manual.
■ Using a pressure washer that is modified,
damaged, improperly adjusted or maintained,
or not completely and securely assembled can
lead to a malfunction and increase the risk of
serious personal injury or death.
0458-001-8221-B
► Never operate a pressure washer that is
modified, damaged, improperly maintained
or not completely and securely assembled.
► Always check your pressure washer for
proper condition and operation before start‐
ing work, particularly the spray gun trigger
and retaining latch.
► Ensure that the spray gun trigger and
retaining latch move freely. The spray gun
trigger must not engage until the retaining
latch is moved to the unlocked position.
► Never attempt to modify or override the
controls or safety devices in any way.
► If your pressure washer or any part is dam‐
aged or does not function properly, take it
to your authorized STIHL servicing dealer.
Do not use the pressure washer until the
problem has been corrected.
■ Before connecting the pressure washer to the
power supply:
► Read and follow the instructions on switch‐
ing on the pressure washer,
► Ensure that the high-pressure hose is in
good condition and not frayed, cracked,
deformed or damaged in any way. Never
operate the machine with a damaged or
worn high-pressure hose.
■ To help reduce the risk of serious personal
injury or death from unintentional starting:
► Never carry the pressure washer with your
finger on the spray gun trigger.
► Switch off the pressure washer, relieve sys‐
tem pressure, lock the spray gun trigger
and disconnect from the power supply
before assembling, inspecting, cleaning,
maintaining or servicing the pressure
washer.
► Always switch off the pressure washer,
relieve system pressure and lock the spay
gun trigger before attempting to remove the
high pressure hose or spray lance from the
spray gun.
► Always switch off the pressure washer,
relieve system pressure and lock the spray
gun trigger before attempting to adjust or
change a spray nozzle or other accessory.
► Never leave the pressure washer unatten‐
ded when it is connected to the power sup‐
ply.
English
10.1.
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