V-7
TROUBLESHOOTINGOVERALL MACHINE
ALL SYSTEMS WORKING, BUT WITH INSUFFICIENT POWER.
Inspect control valve
(sub).
4
Inspect the line filter.3
Hydraulic pump is emit-
ting an unusual level of
noise.
2
Inspect the hydraulic
oil level.
1
Replace seal tape, O-ring,
hose.
Take proper action in accor-
dance with the cause of the
problem.
Replace the filter element.
Repair or replace the control
valve (sub).
Normal
No Noise
No Noise
Noise
Noise
Not enough oil
Problem in the suc-
tion line
Foam in the hydraulic
tank
Inspect hydraulic pump
at fault.
5
Repair or replace hydraulic
pump.
Normal
Faulty
Add hydraulic oil.