poclain hydraulics PM10 - Trouble Shooting

POCLAIN HYDRAULIC
S
A39469B DOC-REPAIR-PM10-FR-EN 5
Trouble shooting
TROUBLES CAUSES REMEDIES
Clogged filters Renew cartridges
Obstructed suction line Clean it
No pump suction Lack of fluid Fill the tank up
to normal level
Charge pump or auxi-
liary
Recondition
pump damaged or replace
Wrong rotation Reverse the way
Wrong rotation Reverse the way
Coupling of the pump Recondition
damaged or replace
LOW FLOW Wrong in both ways Impossible to vary Damaged HP valve Recondition
OR BAD The flow or no flow at all or replace
RECEIVER Reverser not fed with oil Recondition
SPEED or coils not excited or replace
Electrical cylinder not fed Check electrical circuit or
or damaged. replace cylinder
Uncontrolled flow Lever moves by itself Replace pump
Check valve open
or broken Recondition
Reverser blocked or replace
Wrong in one way only Heavy leaks in a position
in one of the circuit lines Exchange valve remains At neutral point,
blocked in one position check boost pressure.
Receiver leaks higher then Check the leaks
the boost flow
Excessive internal leak Check leaks
Too low Too low HP valve setting Replace
or damaged HP valve
Too high Too high HP valve setting Replace
PRESSURE or damaged HP valve
Air in the fluid Bleed the circuit
Irregular
Contaminated fluid Replace it
Worn HP valve Replace it