Detergent Metering Valve; Options; High Pressure Detergent - Ehrle HDB Serie Manual Del Usuario

DETERGENT METERING VALVE

HDB/HDD-SERIES Operator's Manual
OPERATING INSTRUCTIONS

OPTIONS

BALL VALVE OPTION: (Auxiliary Tank)
. Connect hose from auxiliary tank to open port on the 3-way ball valve.
2. Use the selector lever on the ball valve to allow water to flow from the
auxiliary tank to the pump.
3. The water level in the auxiliary tank must always be higher than the pump
inlet. This will ensure gravity feed of water to the pump. Failure to keep the
water level above the pump inlet will result in the pump running dry and
damage to the wet end of the pump.
HIGH PRESSURE DETERGENT: (Cleaning with Detergents)
NOTE: This feature is designed for use with mild detergents only. Since the
cleaning solution travels through various parts of the pressure washer, 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 / Detergents" pg. 8-9. Be certain to wear
protective safety attire as stated on pg. 3.
2. Prepare detergent solution according to label directions. (Never pump acids,
alkalines, abrasive fluids or solvents through the unit. Due to the unknown
and often corrosive characteristics of many detergents commonly used
in the pressure washer cleaning industry, it is recommended to use only
mild detergents with this unit.)
3. Fully immerse the strainer end of the clear vinyl detergent hose into the
detergent solution.
4. 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.
5. 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.
6. 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.
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