17
Periodic Maintenance
1. Check power cord for any breaks, separations, or cuts. Make sure the ground pin on the connector is intact
or the machine will be unsafe. Make sure the ground pin on all three prongs on the connector are intact.
2. It is very important to monitor machine operating hours for proper maintenance of the motors and
pumps. After 700 hours of operation or once a year, the vacuum motor brushes should be inspected by an
authorized repair center and replaced if worn (length is 1/2 inch or less).When replacing brushes, carefully
insert brushes without crimping brush follower spring.
3. Check vacuum motor performance using a vacuum gauge. Place this gauge on the tank inlet fitting with
the vacuum turned on. Water lift should be between 120 and 135 inches. If the reading is lower, check for air
leaks in the tank, cover gasket, and drain hose.
4. Check pump performance occasionally against built-in pressure gauge.
Pump running pressure should be 380-400 p.s.i. When pumping fluid through the tool head, the minimum
pressure should be 310-350 p.s.i. If the pumping pressure is outside of this range, check and clean the
main filter and the ball filters to ensure the pump is getting enough fluid. After 500 hours, check pressure
regulator and pump. If signs of wearing present, rebuild.
7. For extended storage or between uses in cold climates drain the system and flush pump with automobile
windshield washer fluid. If the pump is frozen it can be severely damaged.
8. Check main filter for blockage. A blocked filter will cause problems not only to daily operations but to the
equipment itself. Once the filter is blocked, rinsing is not enough. Clean the tank and fill with fresh water.
Using filter cleaning nozzle assembly with pressure of 400 p.s.i. washes off all debris inside out.
Cascade Chemicals
Name
Use
Part Number
A Excell (4 x 1 gallon)
Light acid based cleaner
78006
Excell (4 x 1 gallon)
Alkaline based cleaner
78004
Excell (5 gallon)
Alkaline based cleaner
78005
Perform-All (4 x 1 gallon)
Neutral pH cleaner
78007
Perform-All (5 gallon)
Neutral pH cleaner
78008
Perform-All Plus (4 x 1 gallon)
Neutral pH cleaner
78009
Defoam (12 x 1 Pint)
Defoamer
78033
Defoam (1 gallon)
Defoamer
78015
Defoam (4 x 1 gallon)
Defoamer
78016
Defoam (5 gallon)
Defoamer
78017
O-Z Clean (4 x 1 gallon)
In-tank cleaner
78012
O-Z Clean (5 gallon pail)
In-tank cleaner
78032
