Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERA
TOR’S MANU
AL
PRESSURE
W
ASHER
12
Before Starting
WARNING: Check hoses, fittings, wand, trigger gun
and fuel connections daily for signs of wear, cracks
and looseness, replace as required.
1. Read all manuals provided with this pressure washer.
Become familiar with location and function of all oper-
ating and safety controls.
2. connect the water supply hose to the float tank water
inlet (standard garden hose connector). The water
faucet and supply hose must be capable of providing
6.0 GPM.
3. Fill the burner fuel tank. Use kerosene, #1 grade
home heating oil, #1 or #2 diesel fuel.
DO NOT USE
GASOLINE.
4. Fill the gasoline tank. Use lead free gasoline minimum
86 octane.
DO NOT
use gasoline containing more
than 10% ethanol, 15% MTBe, or 5% methanol.
5. check pump and engine oil levels.
6. If detergents are to be used, only use detergent for
pressure washers. Follow instructions on detergent
container.
IMPORTANT: Before installing the pressure nozzle
on initial start-up, turn on the water supply and allow
water to run from the end of the wand until clear to
prevent the pressure nozzle from clogging.
IMPORTANT: If the pressure washer has not been
used for an extended period of time, remove the pres-
sure nozzle from the end of the wand and turn on the
water supply. Allow water to run from the end of the
wand until clear.
7. Install the proper pressure nozzle for your cleaning
needs on end of wand, refer to
Figure 8.
IMPORTANT: The trigger gun provided with this pres-
sure washer is equipped with a manual trigger lock to
prevent accidental operation of the trigger gun, refer
to Figure 8. The manual trigger lock should be used
whenever the trigger gun is not in use.
OPERATION INSTRUCTIONS
To Start
DANGER: DO NOT point wand or spray gun at your-
self or at any person. Bodily injury may result from
water under high pressure.
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
trigger gun closed for more than 3 minutes at any
time or damage to pump may occur.
1. Turn water On.
2. Hold wand firmly with trigger gun in the closed po-
sition.
3. Turn fuel shut-off valve counterclockwise (ccW) to
open. Move choke lever to full choke position. choke
may not be needed on warm engine.
4. Move throttle control to half throttle.
5. Turn key on engine clockwise (cW) hold until engine
starts.
DO NOT
crank engine for longer than 15 sec-
onds at any one time or starter damage may occur. If
the engine does not start, it may have air in the gas
lines and be unable to pull gasoline from the fuel tank.
This symptom may appear if the engine has not been
run recently or had been run until all gasoline was
depleted from gas lines.
6. When the engine starts, move choke lever until
engine runs smoothly. Then move throttle control to
full throttle. When engine warms, move choke to no
choke position.
IMPORTANT: To allow for proper battery charging and
AC generator operation the throttle control MUST be
kept in full throttle position as soon as choke lever
is placed in no choke position.
7. Holding wand firmly, squeeze the trigger gun open.
Allow air to purge from system.
8. If hot water is desired, adjust the thermostat to proper
temperature. close the trigger gun and turn burner
switch On.
IMPORTANT: The throttle control must be in the full
throttle position or damage to the AC generator or
burner may result.
9. Open the trigger gun. The burner will fire immediately
with a puff of smoke. If smoke continues, refer to
the Troubleshooting Guide in this manual. When the
trigger gun is closed or the temperature setting is
reached, the burner will automatically turn off.
89312360-5
Figure 8 - Nozzle Installation/Manual Trigger Lock
manual Trigger Lock
Pressure
Nozzle
