Operating Instruction Manual:
OM-ATDP-01
From Serial Number:
All
13
10.0 Troubleshooting
Hi-Force ATDP 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. Or
runs erratically.
a. Mufflers blocked or iced up.
I.
Check mufflers.
II.
Check Killfrost level.
b. Fluid supply starvation.
Check supply.
c. Insufficient air supply,
Check supply lines and pressure.
d. Insufficient lubrication.
I.
Check lubrication level.
II.
Service pump.
e. Pump is damaged, seized or worn. Contact your local Hi-Force office / distributor.
2. Motor stalls before full
operating pressure is
reached.
a. Insufficient air supply.
Check supply lines and pressure.
3. Pump struggles to
build pressure or
maintain pressure
under load.
a. Release valve incorrectly closed.
Check release valve.
b. Valve is damaged, seized or worn
Contact your local Hi-Force office / distributor.
4. Overload protection
valve leaking.
a. Air/hydraulics overloaded
b. Faulty Valve.
I.
Check pressures.
II.
Contact your local Hi-Force
office / distributor.
5. Noisy Operation
a. Air trapped in the hydraulic system. Bleed air from the system. (
See section 5.3)
b. Air leaking into the hydraulic
system.
Visually inspect all areas where air might leak
into the hydraulic system.
c. Oil level too low.
Check unit for visible leaks. Add oil as per
section 5.2.
