Troubleshooting
Condition
Possible cause
Corrective action
Pump does not run.
Pump is seized or damaged.
Refer to applicable pump manual.
Incorrectly wired.
Refer to applicable pump manual and check wiring diagram.
Pump speeds up or runs erratically.
Low level of grease or reservoir
is empty.
Fill reservoir.
Follower plate is stuck and separated
from grease.
Check follower plate and container for damage.
Pump piston or checks are worn.
Refer to applicable pump manual.
Pump runs, but output is low.
Faulty inlet check, faulty discharge
check or damaged o-ring.
Refer to applicable pump manual.
Pump is noisy.
Crankcase needs oil.
Refer to applicable pump manual.
Pump does not build pressure.
Worn wrist pin bushing.
Check the bushings and replace if necessary
Foreign material holding lower check open.
Dismantle and clear check.
Consider adding grease filter to system.
Motor runs, but no pump output.
Gear set or adapter shaft stripped or broken.
Refer to applicable pump manual.
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