Woods Equipment LF156, LF138 manual Troubleshooting

TROUBLESHOOTING

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

24 Troubleshooting MAN0556 (9/21/2007)