Troubleshooting
52
313875J
Material imbalance
Inadequate flow from pump; cavitation Increase fluid supply to proportioning pump
Worn pump inlet valve ball/seat or gasket, repair as
necessary
Erratic pump movement
Pump cavitation
Feed pump pressure is too low, adjust pressure to
within required range
Pump output low
Obstructed fluid hose or mixer; fluid
hose ID too small
Open, clear; use hose with larger ID
Worn piston valve or intake valve in
displacement pump
See pump manual for appropriate repair procedure
Inadequate feed pump pressure
Check feed pump pressure and adjust to within
required range
Problem
Cause
Solution
Summary of Contents for VPM 12
Page 9: ...A Red and B Blue Components 313875J 9...
Page 50: ...Maintenance 50 313875J...
