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24 Troubleshooting
MAN0556 (9/21/2007)
TROUBLESHOOTING
Cannot raise load Low oil supply Check oil level.
Bucket overloaded Try lighter load.
Hydraulic couplers not fully
engaged
Reconnect hoses.
Cylinder piston seal leakage Install seal repair kit.
Control valve incorrectly adjusted
or malfunctioning
Repair or replace control valve.
Tractor valve not open to provide
circuit to auxiliary valve
Open tractor valve. Be sure pres-
sure is to inlet side of auxiliary
valve.
Hydraulic pump malfunctioning Repair or replace hydraulic pump.
Load is greater than boom lift
capacity
Check loader specifications.
Bucket or boom leaks down from
“hold” position
Leaks in hydraulic circuits Tighten loose fittings. Use thread
sealer on pipe (tapered) threads.
Cylinder piston seals leaking Install seal repair kit.
Control valve worn or damaged Repair or replace control valve.
Tractor valve worn or damaged Repair or replace tractor valve.
Cannot lower boom Hydraulic couplers not fully
engaged
Recouple hoses.
Loss of bucket tilt control when
lever is pushed completely for-
ward
Tractor lever in “float” position Use float lockout control to pre-
vent lever from being moved to
“float” position.
Couplers hard to hook up Pressure in circuit Place control levers in “float”
when connecting
Boom and bucket operation does
not correspond to control lever
position
Improperly connected hydraulic
couplers
Connect hydraulic couplers cor-
rectly. See Hydraulic Kit Manual
for proper connections.
Hoses improperly connected Connect hoses properly. See
Hydraulic Kit Manual for proper
connections.
Excessive wear on bucket cutting
edge and wear pads
Bucket is tilted too far forward and
is riding on cutting edge
Keep bottom of bucket parallel to
ground. Use rod gauge to indicate
level bucket position.
Excessive down pressure when
cleaning feedlots and working on
concrete
Use “float” position on boom lift
control lever.