Bush Hog RMB 1865 manual Troubleshooting Guide, Trouble Possible Cause Possible Remedy

OPERATION

OPERATION

21. TROUBLESHOOTING GUIDE

TROUBLE	POSSIBLE CAUSE	POSSIBLE REMEDY
Hydraulic Cylinder	Hydraulic level low.	Check hydraulic fluid level.
Not Working		(See sight gauge on tank)
	Pump not functioning	Attempt to use another cylinder or
	properly.	pressure gauge.
	Cylinder not functioning	Check line for stoppage.
	properly.
	Cylinder has a scored wall,	Replace the cylinder.
	allow oil to flow around
	piston.
Hydraulic Motor	Kinks or pinched points	Check line for kinks or
Not Working	on the line.	pinched places.
	Motor “bogging down”	Recheck relief valve setting
	under load.	on the cutter valve - 2500 PSI.
Hydraulic System Failure	Malfunction in hydraulic	Check entire system before valve is
	valve section.	replaced; may require replacement
		of hydraulic valve section, but not of
		the valve bank. Service relief valves
		and detents individually.
Structural Members	Rough treatment.	Use only on elements it is designed
Failure		to cut such as grass, weeds, brush,
		trees.

Excessive Vibrations	Check Gear box bolts.
	Check For loose nuts on
	bladeholder and blades
	Check for bent output shaft.
	If shaft is bent oil will normally
	leak from the bottom seal.
	Check to see if blades are
	free swinging.
	Check for even wear on each
	blade tip. Were both blades
	changed at the same time?

Tighten if loose.

Tighten If loose

Replace shaft if bent.

Free blades so they swing

Weigh blades. Weight should be within 1 oz. Always replace both blades.

RMB 1865 11/10 Operation Section 4-44

© 2010 Alamo Group Inc.