Allied Telesis 295 - Manual (Page 19)

Trouble Shooting
PROBLEM POSSIBLE CAUSE REMEDY
Loader slow and/or will not
dump. Quick couplers leaking
Hydraulic oil to heavy.
Oil filter plugged.
Hydraulic pump worn.
Oil line restricted or leaking.
Control valve does not shift properly.
Air in hydraulic system.
Cylinder leaks internally.
Faultv valve.
Check connections and compatibility or
replace.
Change or replace filter.
Clean or replace filter.
Repair or replace pump.
Check all hoses and tubes for leaks, damage
or restrictions. Replace damaged or
restricted hoses or tube lines
Inspect, clean, repair or replace valve.
Cycle lift cylinders and bucket cylinders
several times to free system of air.
Replace seals.
Repair or replace valve.
Loader chatters or vibrates when
raising and lowering. Air leak in pump inlet line.
Air in hydraulic system
Oil level too low.
Worn bushinas and/or Dins. Check, tighten or replace inlet line.
Cycle lift cylinders and bucket cylinders.
Add oil as required.
Replace bushinas 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
Oil level too low.
Pumo worn or damaaed.
necessary.
Add oil as required.
Repair or replace pump.
Oil leaks. Damaged fittings or hoses.
Loose connections.
Worn or damaged 0-ring wiper seal
in
cylinder rod end. ^
Worn or damaaed 0-rinas in valve. ,
Replace damaged parts.
Tighten fittings.
Install a seal repair kit.
install an 0-rina repair kit.
Insufficient lift capacity Improper hydraulic pump operation.
Load is greater than boom lift
capacity.
Internal boom cylinder leakage.
ImoroDer hvdraulic valve ooeration.
Repair or replace pump.
Check loader specifications.
Replace any worn parts and install a seal
repair kit.
Repair or replace valve.
Slow leakdown Worn control valve. Have authorized dealer replace seals.
Worn cylinder oiston seals. Have authorized dealer replace seals.
Excessive wear on bottom oil
bucket and wear oads Float position not used while
ODeratino loader Use float position provided on valve.
Hydraulic cylinders, inoperative. Hose from control valve improperly
connected.
Refer to plumbing diagrams.
Pump operating continually on
closed center tractor hydraulic
system. Tractor control valve relief stuck
open See your tractor manual for proper
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 not work according
to decal.
Hoses improperly connected. Replace relief valve \Mth closed center plug
and plug the power beyond adapter on valve.
Valve noise and/or hot. Open center control valve on closed
center tractor. Replace relief valve with closed center plug
and plua the power bevond adapter on valve.
Tractor loads/pump squeals. Closed center control valve on open
center tractor.
17
Install open center plug on optional valve.
Replace closed center plug with relief and
install short plug in place of powerbeyond
adapter.