Operating Instruction Manual:
OM-TPE-A-01
Serial Numbers:
All
25
11.0 Troubleshooting
Hi-Force TPE-A Torque Wrench Pumps should be serviced and repaired only by authorised Hi-Force
repair centres. The following table gives possible causes and solutions for common problems.
TROUBLESHOOTING GUIDE
Problem
Possible Cause
Solution
1. Pump will not start.
a. Not connected to the power supply. Connect to the power supply.
b. Damaged power cord.
Repair or replace the power cord.
c. Circuit breaker tripped.
i. Reset Circuit breaker.
ii. Ensure breaker is adequately rated.
d. Faulty control pendant.
Contact your local Hi-Force office / distributor.
e. Blown fuse.
Replace blown fuse.
f. “Stop / Emergency Stop” button
pressed.
Twist the “STOP” Buttons (10 & 21) clockwise
to ensure they are released.
g. Motor is damaged, seized or worn. Contact your local Hi-Force office / distributor.
h. Electrical Fault
Contact your local Hi-Force office / distributor.
2. Motor stalls or
struggles to create
pressure.
a. Low supply voltage.
i. Use heavier gauge extension cord.
ii. Turn off excess electrical loads.
3. Pump struggles to
build pressure or
maintain pressure
under load.
a. Oil level too low
Check unit for visible leaks. Add oil as per
section 5.2.
b. External oil leak in the system.
Contact your local Hi-Force office / distributor.
c. Adjustable relief valve incorrectly
set.
Adjust relief valve pressure as per section 6.2.
4. Pump running hot.
a. Low oil level.
Add oil as per section 5.2.
b. High-Pressure leakage at pump.
Contact your local Hi-Force office / distributor.
5. Motor stops working
after prolonged use.
a. Oil overheated.
Allow time for oil to cool. See section 8 for
details.
6. Tool will not advance.
a. Pump malfunction.
Contact your local Hi-Force office / distributor.
b. Oil level too low.
Add oil as per section 5.2.
c. Faulty control pendant.
Contact your local Hi-Force office / distributor.
7. Tool advances
automatically, without
a pendant button being
pressed.
a. Tool Incorrectly connected.
Swap Hose connections at the tool.
8. Pump will only reach
80-90 bar in advance
mode, but higher in
retract mode.
a. Tool Incorrectly connected.
Swap Hose connections at the tool.
