02-7832-0100
12 TON AXLE JACK
7.0
TROUBLE SHOOTING
TROUBLE
PROBABLE CAUSE
REMEDY
High pressure leaks (at joint, plugs or
tubing)
Re-tighten or repair
Leaky discharge check valve
Open release valve, pump
rapidly to dislodge or repair
pump
Leaky ram O-ring packing
Replace packing
Leaky release valve
Tighten release valve
Leaky pump O-ring packing
Repair pump
Lack of oil
Refill reservoir, check system for
leaks
Sticking inlet check valve
Open release valve, pump
rapidly to dislodge or repair
pump
Closed air vent
Open
Ram will not rise or
rises erratically
Air under ram
Bleed system
Broken pump release valve
Replace release valve
Bent ram
Replace suspected ram assembly
Jack will not lower
Closed air vent or release valve
Open
