Woods Equipment 1050 manual Troubleshooting, Problem Possible Cause Solution

TROUBLESHOOTING

PROBLEM	POSSIBLE CAUSE	SOLUTION
Noisy pump caused by cavitation	Oil too heavy	Change to proper viscosity.
	Oil filter plugged	Replace filter.
	Suction line plugged or too small	Clean line and check for size.
	Suction line kinked	Replace line.
Oil heating	Oil supply low	Fill reservoir.
	Contaminated oil	Drain reservoir, change filter, and
		refill with clean oil.
	Setting of relief valve too high or	Set to correct pressure.
	too low
	Pump operating too fast	Do not exceed recommended
		rpm PTO speed.
Shaft seal leakage	Worn shaft seal	Replace shaft seal.
Foaming oil	Low oil level	Fill reservoir.
	Air leaking into suction line	Tighten fittings.
	Wrong kind of oil	Drain and refill reservoir with non-
		foaming oil.
	Moisture in oil	Keep oil temperature below 180°
		and continue to operate as oil
		dries out, or replace oil and purge
		system if foaming is excessive.
Boom drops as dipper or bucket	Load check valve leaking	Clean or replace check valve
cylinder lever is activated while		assembly.
boom control is in raised position
Jerky operation	Hydraulic hoses plumbed	Check hydraulic plumbing
	incorrectly	schematic and correct hose
		routing as required.

20 Owner Service 51861 (Rev. 6/16/2006)