Troubleshooting
3A8569A
9
Troubleshooting
1.
Follow
, page 7, before
checking or repairing the equipment.
2.
Check all possible problems and causes before
disassembling the equipment.
Problem
Cause
Solution
Motor is running, but the pump
will not prime.
There is dirt under the pressure relief
valve.
Remove the pressure relief valve and
inspect. Clean or replace the pump
housing assembly.
The gears are worn or damaged.
Remove the cover and inspect the
gears. If damaged, replace the pump
housing assembly.
The oil level is low.
Refill or replace the drum.
There is an air leak in the suction tube.
Inspect all joints in the suction tube
making sure that all threaded joints
have sealant applied properly. Fill
pump outlet port with oil.
There is an air lock in the system.
Fill the system with fluid by keeping
nozzle open by operating the pump.
The motor does not run at the proper
speed.
Check the electric connections.
Ensure the supply voltage is at the
proper level.
Oil is leaking in the motor
mount.
A faulty or damaged motor shaft seal.
Replace the pump housing assembly.
The nozzle was closed for an extended
period of time during pump operation.
Do not exceed five (5) minutes of
operation with the nozzle closed.
A worn motor shaft.
Replace with a new pump.
