Troubleshooting
26
3A6165J
Material imbalance
Inadequate flow from pump;
Increase fluid supply to proportion
-
ing pump:
•
Use minimum 3/4 in. (19 mm) ID
supply hose, as short as practi
-
cal
Clean inlet strainer screen
Worn pump inlet valve ball/seat or
gasket
Erratic pump movement
Pump cavitation
Feed pump pressure is too low.
Adjust pressure to maintain 100 psi
(0.7 MPa, 7 bar) minimum.
Pump output low
Obstructed fluid hose or dispense
valve; fluid hose ID too small
Open, clear; use hose with larger ID.
Worn piston valve or intake valve in
displacement pump
See pump manual 3A0019.
Inadequate feed pump pressure
Check feed pump pressure and
adjust to 100 psi (0.7 MPa, 7 bar)
minimum.
Problem
Cause
Solution