Operating Instructions, Form No. 1000090, Back sheet 4 of 6
TROUBLESHOOTING GUIDE
WARNING
●
To help prevent personal injury, any repair work or troubleshooting must be done by qualified personnel
familiar with this equipment.
●
Use the proper gauges and equipment when troubleshooting.
NOTE:
●
Depending on the type of pump, it is often best to check for leaks by using a hand pump and applying
pressure to the suspect area without the motor running. Watch for leaking oil and follow it back to its
source.
●
Plug the outlet ports of the pump when checking for leakage to determine if the leakage is in the pump or
in the wrench or tool.
●
Refer to the Parts List included with your particular pump when using this troubleshooting guide.
PROBLEM CAUSE SOLUTION
Electric motor does not run
WARNING: To help prevent
personal injury, disconnect
power supply before removing
cover. Any electrical work should
be performed by a qualified
electrician.
1. Pump not turned ON.
2. Unit is not plugged in.
3. No voltage supply.
4. Broken lead wire or defective
power cord plug.
5. Defective switches.
6. Defective motor.
7. Defective starter relay.
8. Defective remote switch.
9. Worn brushes.
10. Circuit breaker tripped because
total amperage draw too high for
existing circuit.
11. Overheated motor (single-phase
motor only). Magnetic starter
disengaged (three-phase motor
only). Thermal protector open.
12. Faulty thermal protector (single-
phase motor). Faulty magnetic
starter (three-phase motor).
1. Flip toggle switch to "Run"
position.
2. Plug in unit.
3. Check line voltage. Check reset
button on power panel.
4. Replace defective parts.
5. Check switches.
6. Repair or replace motor.
7. Replace defective parts.
8. Repair or replace remote switch.
9. Replace brushes.
10. Add an additional circuit or use
alternate circuit.
11. Wait for motor to cool before
restarting. Reset thermal
protector (Single-phase motor
will reset automatically.)
12. Replace.
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