Cleaning With Detergent-High Pressure (Cold/Hot/Steam); Shutdown - Hydrotech HDS Serie Mode D'emploi

DETERGENT METERING VALVE
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OPERATING INSTRUCTIONS
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, pg. 8. Be certain to wear protective
safety attire as stated on pg. 9.
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