Backhoe Attachment - New Holland B95CTC Operator's Manual

Backhoe attachment

PROBLEM
The lifting system is inoperative, is
too slow, loses power or does not
hold.
The digging control fails to operate, is
slow or loses power.
The bucket fails to operate, is slow
or loses power.
The telescopic dipper fails to operate,
is slow or loses power.
Stabilizer pads leaking.
8 - TROUBLESHOOTING
POSSIBLE CAUSE
The lifting circuit relief valve is stuck
open, set to a too low value or there
is a leak in the seat.
Valve spool leaking.
Cylinder seals leaking or cylinder
barrel damaged.
The digging circuit relief valve
(cylinder end) is stuck open, set to a
too low value or there is a leak in the
seat.
Valve spool leaking.
Cylinder seals leaking or cylinder
barrel damaged.
The bucket relief valve (rod end) is
stuck open, set to a too low value or
there is a leak in the seat.
Valve spool leaking.
Cylinder seals leaking or cylinder
barrel damaged.
The telescopic dipper circuit relief
valve (cylinder end) is stuck open, set
to a too low value or there is a leak
in the seat.
Valve spool leaking.
Cylinder seals leaking or cylinder
barrel damaged.
Stabilizer safety valve leaking.
Cylinder seals leaking or cylinder
barrel damaged.
8 - 22
CORRECTION
Test the pressure of the lifting circuit
relief valve.
Inspect the spool and check it for
wear or scratches.
Inspect and reseal the cylinder.
Test the pressure of the digging circuit
relief valve.
Inspect the spool and check it for
wear or scratches.
Inspect and reseal the cylinder.
Test the pressure of the bucket relief
valve.
Inspect the spool and check it for
wear or scratches.
Inspect and reseal the cylinder.
Test the pressure of the telescopic
dipper relief valve.
Inspect the spool and check it for
wear or scratches.
Inspect and reseal the cylinder.
Inspect and overhaul the stabilizer
safety valve.
Inspect and reseal the cylinder.