Mi-T-M HDS Serie Manual Del Operador página 18

DETERGENT METERING VALVE
18
OPERATING INSTRUCTIONS
setting is desired, it is normal for the burner to cycle (fire intermittently)
while spraying.
Note: Upon initial start-up, water will begin turning hot in approximately
20 seconds and will reach maximum temperature within 5 minutes
providing that the trigger gun remains open. The burner will not fire
when the trigger is released.
Note: The burner will not fire if the Steam switch is moved to the ON
position before the unloader has been adjusted to the minimum fac-
tory setting.
CLEANING WITH DETERGENTS-HIGH PRESSURE (COLD/
HOT/STEAM):
NOTE: This feature is designed for use with mild detergents only. Since
the cleaning solution travels through the pump and heat exchanger
coil, do not use corrosives as they will cause extensive damage as
well as pose a considerable safety hazard.
1. Refer to "Risk of Bodily Injury" warnings. Be certain to wear protective
safety attire.
2. Prepare detergent solution according to label directions.
3. Fully immerse the strainer end of the clear vinyl detergent hose into the
detergent solution.
4. Adjust the amount of detergent desired by turning the detergent metering
valve completely counterclockwise to set at maximum siphon rate.
5. To apply solution: Unlock the trigger gun and squeeze the trigger. In a few
moments, a detergent/water mixture will exit the nozzle. Start spraying
the lower portion of the surface being cleaned and move up, using long
overlapping strokes. Applying from the bottom up helps avoid streaking.
Allow to soak briefly. Avoid working on hot surfaces or in direct sunlight to
minimize the chances of the detergent drying, which may result in damaging
surfaces. Be certain to apply cleaning solution to a small section at a time.
6. To rinse: Lock the trigger gun in the OFF position. Turn the detergent
metering valve to the OFF position. Unlock the trigger gun and spray. It
will take about 30 seconds to purge all detergent from the line. For best
rinsing results, start at the top and work down.
7. Siphon a gallon of water through the detergent injection system after each
use. This prevents the possibility of corrosion or detergent residue causing
mechanical problems during the next use.
SHUTDOWN:
1. Move the Burner switch, Auxiliary switch, and Steam switch (where applicable)
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 environment.
Operator's Manual