Briggs & Stratton PowerBoss Operator's Manual page 16

WARNING The high pressure stream of water
that this equipment produces could cut
through skin and its underlying tissues,
resulting in serious injury and possible
amputation.
Spray gun traps high water pressure, even when
engine is stopped and water is disconnected, which
could result in serious injury.
• Keep high pressure hose connected to pump and spray
gun while system is pressurized.
• ALWAYS point spray gun in safe direction, press red
button and squeeze spray gun trigger to release high
pressure, every time you stop engine.
3. Remove detergent siphoning hose from barbed
fitting on pump.
4. Using a firm, blunt object 7/64" in diameter or
smaller, by at least 1" long, such as an Allen
wrench, slowly insert the object into the barbed
fitting until you meet resistance. This resistance is
the check ball.
5. Slowly push down until you feel the ball move
slightly, push no more than 1/8". Slight pressure
may be required to free the ball.
6. Repeat steps 4 and 5 if necessary.
7. Reinstall detergent siphoning hose onto barb
fitting.
8. Treat with PumpSaver as described in Protecting
the Pump during storage to prevent reoccurrence.
Check Spray Gun
Examine the hose connection to the spray gun and
make sure it is secure. Test the trigger by pressing the
red button and making sure the trigger "springs back"
into place when you release it. You should not be able
to press the trigger without pressing the red button.
Replace spray gun immediately if it fails any of these
tests.
Spray Tip Maintenance
A pulsing sensation felt while squeezing the spray gun
trigger may be caused by excessive pump pressure.
The principal cause of excessive pump pressure is a
spray tip clogged or restricted with foreign materials,
such as dirt, etc. To correct the problem, immediately
clean the spray tip following these instructions:
1. Shut off engine and turn off water supply.
2. ALWAYS point spray gun in a safe direction,
press red button and squeeze spray gun trigger to
release retained high water pressure.
16
WARNING The high pressure stream of water
that this equipment produces could cut
through skin and its underlying tissues,
resulting in serious injury and possible
amputation.
Spray gun traps high water pressure, even when
engine is stopped and water is disconnected, which
could result in serious injury.
• Keep high pressure hose connected to pump and spray
gun while system is pressurized.
• ALWAYS point spray gun in safe direction, press red
button and squeeze spray gun trigger to release high
pressure, every time you stop engine.
3. Remove spray tip from end of nozzle extension.
4. Use a small paper clip to free any foreign material
clogging or restricting spray tip (A).
A
5. Remove nozzle extension from spray gun.
6. Using a garden hose, remove additional debris
by back flushing water through nozzle extension.
Back flush between 30 to 60 seconds.
7. Reinstall spray tip into nozzle extension.
8. Reconnect nozzle extension to spray gun.
9. Make sure garden hose is connected to water
inlet. Check that high pressure hose is connected
to spray gun and pump. Turn on water.
10. Start engine following instructions How to Start
Your Pressure Washer.
11. Test pressure washer by operating with each
quick connect spray tip.
O-Ring Maintenance
Purchase an O-Ring/Maintenance Kit, model 705001,
by contacting the nearest authorized service center.
It is not included with the pressure washer. This kit
includes replacement o-rings, rubber washer and water
inlet filter. Refer to the instruction sheet provided in the
kit to service your unit's o-rings.
WARNING The high pressure stream of water
that this equipment produces could cut
through skin and its underlying tissues,
resulting in serious injury and possible
amputation.
• NEVER repair leaking connections with sealant of any
kind. Replace o-ring or seal.
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