Bobcat 743 - Page 51

PROBLEM
o
No hydraulic action.
Hydraulic action is rough.
Hydraulic action is slow.
Hydraulic cylinders leak oil.
TROUBLESHOOTING THE HYDRAULIC SYSTEM
CAUSE
No hydraulic oil.
Pedals
are disconnected.
Relief valve is damaged.
Hydraulic pump is damaged.
Hydraulic oil is too thick.
Hydraulic oil level is low.
Pedal is hitting
floor or dirt
under pedal.
Cylinders leak internally.
Hydraulic pump is damaged.
Control valve is damaged.
Hydraulic oil is too thick.
Damage
to
cylinder
rods or
seals.
-41-
CORRECTION
PAGE
Check
oil level, and
add as
30
needed.
Check
linkage, and repair
as
-
needed.
Replace the relief valve. D/S
Check pump and replace if D/S
damaged.
Let machine
warm up.
-
Check oil
level,
and
add as
30
needed.
Check adjustment. Remove 35
dirt.
Check condition of cylinders
D/S
and make repair.
Check pump
and
replace
as
D/S
necessary.
Check
valve and make repair as
D/S
needed.
Let machine
warm up.
-
Make repair of cylinders. D/S
- 743 Loader
Operator's
Manual
,