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OPERATING INSTRUCTIONS
CLEANING WITH DETERGENTS:
1. Refer to "Detergent Cleaning Precautions" pg. 6 before working with
detergents. Be certain to wear protective safety attire as stated on pg.
10.
2. Prepare detergent solution according to label directions. Never pump
acids, alkaline, abrasive fluids or solvents through the unit.
3. Connect the detergent hose to the unit as shown on page 8.
4. Immerse the strainer into the detergent solution to allow detergent to
siphon.
5. Be certain the water supply is completely turned "ON".
6. With the trigger gun locked in the "OFF" position, turn the collar at the
end of the wand counterclockwise for low pressure as shown in figure
at right.
7. 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 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 rinse a small section at
a time.
8. To rinse; lock the trigger gun in the "OFF" position, turn the collar at the
end of the wand clockwise. 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.
9. 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. Move the On/Off switch to the "OFF" position to turn unit off.
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 the unit from the power source.
6. Disconnect and drain gun, wand and hoses.
7. Wipe unit clean and store with gun, wand and hoses in a safe, non-
freezing area.
STORAGE & MAINTENANCE
PUMP MAINTENANCE: The pump oil must be changed after the first 25
hours of operation. Once the initial oil change has been completed, it is
recommended the oil be changed every 3 months or 250 hour intervals. If
oil appears dirty or milky, changes may be required at a greater frequency.
Use Mi-T-M pump oil AW-4085-0016 and fill only to the center of the oil
sight glass. DO NOT OVERFILL!
NOZZLE MAINTENANCE: Water flow through the spray nozzle will erode
the orifice, making it larger, resulting in a pressure loss. Nozzles should
be replaced whenever pressure is less than 85% of the maximum. The
frequency of replacement will depend upon such variables as mineral
content in the water and number of hours the nozzle is used.
Operator's Manual
15
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