OH 0014
AIR HYDRAULIC PUMP 10T 1/4"
Symptom
Possible causes
Corrective action
The tools will not extend, move
or respond to pressurized fluid.
Overload condition.
Release valve not closed.
Remedy overload condition.
Ensure release valve closed.
The tools responds to pressu-
rized fluid, but system does not
maintain pressure.
Overload condition.
Release valve not closed.
Hydraulic unit malfunction.
Remedy overload condition.
Ensure release valve closed.
The tools will not return fluid
to pump (i.e. cylinder will not
retract).
Malfunctioning coupler,
damaged the tools.
Reservoir overfilled.
Secure load by other means.
Open release valve, depressurize
pump and hose, remove coupler
and/or the tools, then renew or
replace.
Secure load by other means.
Open release valve, depressurize
pump and
hose, remove the tools, then
drain fluid to proper level.
The tools will not fully extend
(cylinder or spreader).
Fluid level low.
Follow Symptom 3 procedure
for securing load, depressurizing
pump, remove the tools, then
ensure proper fluid level.
Poor performance.
Air trapped in system.
Ensure proper fluid level.
Ensure vented oil filler plug let
pressurized reservoir air escape.
TROUBLE SHOOTING