CFR 10416A, Instruction Manual, Page: 15 / 24

CFR CASCADE
15
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.