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OPERATING INSTRUCTIONS
Cleaning with detergents
Refer to “Detergent Cleaning Precautions” pg. 4 before
working with detergents. Be certain to wear protective
safety attire.
Prepare detergent solution according to label directions.
Never pump acids, alkaline, abrasive uids or solvents
through the unit.
Some units are equipped with adjustable detergent
knobs. Locate the clear vinyl hose which leads to the
pump head.
• If your injector is equipped with an adjustment knob
on the pump head, you may adjust the amount of
detergent desired by turning the knob completely
counterclockwise to set at the maximum siphon rate.
• If your injector is not equipped with an adjustment
knob, the detergent ratio is preset and cannot be
adjusted.
1. Immerse the detergent strainer into the detergent
solution to allow detergent to siphon.
2. With the trigger gun locked in the “OFF” position,
secure quick-connect the detergent spray nozzle
(#6540° BLACK) into the end of the wand.
Note: This injection system is designed to apply deter-
gents under low pressure only. It will not allow deter-
gent solutions to be introduced into the system unless
the nozzle assembly is in the low pressure detergent
mode.
3. To apply solution; unlock the trigger gun and squeeze
the trigger. In a few moments a detergent/water mixture
will exit the low pressure 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 briey.
Do not allow detergent solution to dry on the surface.
(Avoid working on hot surfaces or in direct sunlight to
minimize the chances of the detergent drying, which
may result in damaging painted surfaces.) Be certain
to rinse a small section at a time.
4. To rinse; lock the trigger gun in the “OFF” position,
securely quick-connect the desired high pressure
nozzle into the end of the wand. 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.
5. Siphon a gallon of water through the low pressure
detergent injection system after each use. This
prevents the possibility of corrosion or detergent
residue causing mechanical problems during the next
use.
Shutdown
1. Turn engine “OFF” as directed in the engine manual.
2. Turn the water supply “OFF”.
3. Pointing the gun in a safe direction, trigger gun
momentarily to relieve any trapped pressure.
4. Once pressure is relieved, disconnect the nozzle
assembly.
5. Disconnect and drain gun, wand and hoses.
6. Wipe unit clean and store with gun, wand and hoses
in a safe, non-freezing area.