HOTSY 771/772 • 8.941-246.0 • Rev. 12/10
13
PRESSURE WASHER
OPERATOR’S MANUAL
OPERATION INSTRUCTIONS
Before Starting
1. Read all manuals provided with this pressure washer.
Become familiar with location and function of all
operating and safety controls.
WARNING: Make sure all switches and controls are in
the OFF position prior to plugging in electrical cord.
DANGER: Do not stand in water while plugging or
unplugging electrical cord.
CAUTION: This pressure washer is equipped with a
UL approved ground fault circuit interrupter (GFCI)
power cord. Use UL grounded type receptacles
of proper voltage and amperage ratings. Where a
properly grounded receptacle is not available, it is
the personal responsibility of the owner to have one
installed. Always disconnect power before servicing
your pressure washer.
CAUTION: This machine is equipped with a 35 foot
long power cord protected by a ground fault circuit
interrupter (GFCI). DO NOT use extension cords
because of possible severe electrical shock and/or
damage to the machine.
DANGER: This equipment is designed to run on
vapor fuel. DO NOT use liquid fuel. Have a qualified
serviceman install and service your equipment.
2. Connect electrical cord to an overload protected
230VAC/60Hz/1PH grounded circuit, minimum 15
ampere rated. Test the GFCI using the reset and test
procedure located on the GFCI device. Do not use
machine if GFCI fails test. The GFCI must be reset
and tested with every use.
WARNING: Check hoses, fittings, wand, trigger gun
and fuel connections daily for signs of wear, cracks
and looseness, and replace as required.
3. Connect water supply hose to the garden hose con-
nector located on machine’s front. The water faucet
and supply hose must be capable of providing a
minimum of 3.0 gallons per minute (GPM).
4. Connect proper gas supply. See instructions under
Using LP Vapor Fuel and Converting to Natural
Gas.
5. Check pump oil level.
6. If detergents are to be used, only use detergents
intended for pressure washers. Follow instructions on
the detergent container.
IMPORTANT: Before installing nozzle on initial start-
up, turn on the water supply and pump switch and
allow water to run from the end of the wand until clear
to prevent the nozzle from clogging.
IMPORTANT: If the pressure washer has not been
used for an extended period of time, remove the
nozzle from the end of the wand and turn on water
supply and pump switch. Allow water to run from the
end of the wand until clear.
8. Install the pressure nozzle on end of wand, (refer to
Figure 8).
NOTE: To prevent damage to the pressure nozzle,
only place the wrench on hex area when tightening.
IMPORTANT: The trigger gun provided with this
pressure washer is equipped with a manual trigger
lock to prevent accidental operation of the trigger gun,
(refer to Figure 8). The trigger lock should be used
whenever the trigger gun is not in use.
IMPORTANT: Pump may require priming the first time
the pressure washer is run. See step 9.
9. If you are running the machine for the first time, or
the machine has been sitting for a period of time, the
pump may require priming. To prime the pump, run
pressure washer with only the pump switch on.
IMPORTANT: On initial start up or if a new gas bottle
is installed it is necessary to bleed the air from the
gas line before the pilot will light. Refer to step 10
for details.
10. If you are running the machine for the first time,
have changed the gas bottle, or have performed
maintenance to the burner assembly, there will
be air in the gas line. To bleed out the air from
the gas line, run pressure washer with pump and
burner switch on and thermostat on highest set-
ting. Squeeze trigger gun for 15 seconds. If the
burner has not ignited, release trigger for 5 seconds
and re-squeeze. If the burner has not ignited after
10 tries, see the Troubleshooting Guide in this
manual.
TO START
DANGER: Do not point wand or trigger gun at yourself
or at any person. Bodily injury may result from water
under high pressure.
WARNING: Wear eye, ear, hand, foot, and skin protec-
tion at all times while operating pressure washer.
IMPORTANT: The water must be turned on before
starting. Running the pump dry will cause damage
and void warranty.
IMPORTANT: Do not allow the machine to run with trig-
ger of trigger gun released for more than 10 minutes
Figure 8 - Nozzle Installation/Manual Trigger Lock
Manual Trigger Lock
Pressure
Nozzle
