Troubleshooting
16
312376A
* To determine if fluid hose or gun is obstructed, follow Pressure Relief Procedure, page 11. Disconnect fluid hose
and place a container at pump fluid outlet to catch any fluid. Turn on air just enough to start pump. If pump starts
when air is turned on, the obstruction is in the fluid hose or gun.
Erratic or accelerated pump
speed.
Exhausted fluid supply.
Refill and prime.
Fluid is too heavy for pump priming.
Use drain/purge valve. Use a ram. See
Supply Units Operation manual 312371.
Held open or worn intake valve or
seals.
Clear valve. Replace seals. See separate
Check-Mate Displacement Pump manual
312375.
Held open or worn priming piston.
Clear; service. See separate Check-Mate
Displacement Pump manual 312375.
Worn packings in displacement pump.
Replace packings.See separate
Check-Mate Displacement Pump manual
312375.
Problem
Cause
Solution
