PROBLEM
POSSlBLE CAUSE
REMEDY
Loader slow and/or will not dump.
Quick couplers leaking.
Check connections and compatibility or
replace.
Hydraulic oil too heavy.
Change or replace filter.
Oil filter plugged.
Clean or replace filter.
Hydraulic pump worn.
Repair or replace pump.
Oil line restricted or leaking.
Check all hoses and tubes for leaks,
damage or restrictions. Replace damaged
or restricted hoses or tube lines.
Control valve does not shift properly.
Inspect, clean, repair or replace valve.
Air in hydraulic system.
Cycle lift cylinders and bucket cylinders
several times to free system of air.
Cylinder leaks internally.
Replace seals.
Faulty valve.
Repair or replace valve.
Loader chatters or vibrates when
Air leak in pump inlet line.
Check, tighten or replace inlet line.
raising and lowering.
Air in hydraulic system.
Cycle lift cylinders and bucket cylinders.
Oil level too low.
Add oil as required.
Excessive movement at pivots
Worn bushings and/or pins.
Replace bushings and/or pins.
Pump noisy
Inlet line restricted or leaking.
Check for air leaks, restrictions or collapsed
hose. Tighten or replace hose. Clean
filter if necessary.
Oil level too low.
Add oil as required.
Pump worn or damaged.
Repair or replace pump.
Oil leaks.
Damaged fittings or hoses.
Replace damaged parts.
Loose connections.
Tighten fittings.
Worn or damaged O-ring wiper
Install a seal repair kit.
seal in cylinder rod end.
Worn or damaged O-rings in valve.
Install an O-ring repair kit.
Insufficient lift capacity
Improper hydraulic pump operation.
Repair or replace pump.
Load is greater than boom lift capacity.
Check loader specifications.
Internal boom cylinder leakage.
Replace any worn parts and install
a seal repair kit.
Improper hydraulic valve operation.
Repair or replace valve.
Slow leakdown.
Worn control valve.
Have authorized dealer replace seals.
Worn cylinder piston seals.
Have authorized dealer replace seals.
Excessive wear on bottom oil bucket
Float position not used while operating
Use float position provided on valve.
and wear pads.
loader.
Hydraulic cylinders inoperative.
Hose from control valve improperly
Refer to plumbing diagrams.
connected.
Pump operating continually on closed Tractor control valve relief stuck
See your tractor manual for proper
center tractor hydraulic system.
open.
adjustment or Loader dealer for loader
valve. (3000 PSI is maximum pressure
relief setting recommended.)
Hydraulic control valve set too low.
Adjust valve in accordance with manual.
Loader lift and bucket tilt controls do
Hoses improperly connected.
Refer to plumbing diagrams
not work according to decal.
and correct hose connections.
Valve noisy and/or hot
Open center control valve on closed
Replace relief valve with closed center plug
center tractor.
and plug the power beyond adapter on valve.
Tractor loads/pump squeals
Closed center control valve on open
Install open center plug on optional valve.
center tractor.
Replace closed center plug with relief and
install short plug in place of power beyond
adapter.
Trouble Shooting
18
