HOT WATER OPERATION:
WARNING: RISK OF BURN! THE WATER TEMPERATURE COULD BECOME VERY HOT DURING HOT
WATER OPERATION.
TRIGGER GUN/LANCE ASSEMBLY.
1. Follow preceding steps 1-7 for "Start-up / Cold water operation".
2. Move the Burner switch to the ON position.
3. Recheck the system for fuel leaks. If a fuel leak is found, TURN MACHINE OFF IMMEDIATELY! See "Risk of
Explosion or Fire" warnings. Be sure that all damaged parts are replaced and that all mechanical problems have
been corrected prior to operation of the unit. Contact Customer Service if necessary.
Note: Upon initial start-up, water will begin turning hot in approximately 20 seconds and will reach maximum
temperature within 2-1/2 minutes providing that the trigger gun remains open. The burner will not fire when
the trigger is released.
SHUTDOWN:
1. Move the Burner switch to the OFF position.
2. Squeeze the trigger and discharge the water for a period of three minutes to cool the heat exchanger and high
pressure hose. Insufficient cool-down periods for the high pressure hose will cause excessive wear and eventual
rupture of the hose.
3. Do not close the choke to stop the engine. Backfire or engine damage may occur.
4. Move the engine key switch to the OFF position.
5. Turn off the water supply and trigger the gun momentarily to relieve trapped pressure.
Disconnect and drain the high pressure hose, gun, and lance. Wipe the unit clean. Store in a non-freezing environ-
ment.
HMT-4004-0MGH Operator's Manual
OPERATING INSTRUCTIONS
BE CAUTIOUS WHEN ADJUSTING PRESSURE OR CONTROLLING THE
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