PROBLEM
Jerky Operation
Slow Operation
Oil Leaks
Cannot Raise Load
TROUBLE SHOOTING
POSSIBLE CAUSE
Air
in
hydraulic system
Cold hydraulic oil
Low hydraulic oil level
Poor oil circulation
Worn
or
damaged hydraulic pump
Air leak
in
pump inlet line
Faulty valve
Air
in
hydraulic system
Hydraulic oil
too
heavy
Oil filter plugged
Slow engine speed
Cylinder piston seals leaking
Remote valve out
of
adjustment
or
malfunctioning
Tractor hydraulic pump malfunctioning
Hydraulic couplers not completely
engaged
Loose hose connections
Fittings or hoses defective
Hydraulic cylinder seals worn
or
damaged
Remote valve components worn or
damaged
Low oil supply
Bucket overloaded
20
SOLUTION
Cycle cylind~rs several times to
purge system
of
air.
Run engine
t9
warm oil.
Add oil to level specified.
Change oil filler and clean screen
in tractor hydraulic system.
Repair
or
replace pump.
Check, tighteri
or
replace inlet line.
Repair
or
replace valve.
Cycle lift cyli~ders and bucket cyl-
inders sever~( times
to
free system
from air.
Change to pr9per oil.
Clean and
relj>lace
filter.
Increase
eng~ne
speed rate.
Install seal repair kit.
Adjust, repair!
or
replace.
Repair
or
replace pump.
Connect
hyd$ulic
couplers.
Tighten fittings. Use thread sealer
on pipe (tapered) threads.
Replace deteptive parts.
Install seal repair
kit.
Repair and/or replace.
Check oil lev~I.
Try
lighter lo~d.
(Continued
on
next
page)
F-8297 (1-94)
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