Bush Hog 2165 manual Troubleshooting Continued, Problem, Cause, Correction

Troubleshooting (Continued)

Problem	Cause	Correction
Leaky cylinders	Oil is bypassing cylinder piston,	Replace or rebuild the cylinder; replace
	scored piston, worn piston	damaged parts.
	packing, or defective piston
	assembly
	Scored piston rods and worn	Replace or rebuild the cylinder; replace
	guides in cylinder	damaged parts.
	Bent piston rod in cylinder	Replace or rebuild the cylinder; replace
		damaged parts.
	Worn or damaged rod seals on	Repack cylinder. Rebuild cylinder,
	cylinder; external leaks	replacing damaged parts as necessary.
Leaky valve	Loose oil line connections,	Tighten all hose connections and
	leaks in line or broken lines	replace any damaged O-rings at
		leaking O-ring fittings. Check and
		replace any damaged hoses and lines.
	Excessive back pressure	Relieve condition. Restriction may be
		from outlet to reservoir.
	Paint on valve spool; sticking	Clean valve spool. Binding is usually
	valve spool or scored valve	caused from an over tightened plug,
	spool	mounting bolt, fitting in valve body or
		tie rod bolt. If a plug or fitting in the
		valve body is leaking, do not overtighten
		in an effort to stop leak. This will distort
		body casting and cause spools to bind.
		Instead, the plug and fitting should be
		removed from valve body and be
		reconnected, using a new O-ring. Do
		not apply excessive pressure on
		mounting bolts. The rods should be
		torqued to 30 ft. lbs. Never force spool.
	Ball in anti-cavitation check	Clean anti-cavitation valve carefully,
	valve is stuck or not seating	being sure that checks move freely and
	properly.	seat properly, or replace cartridge.
Sticky valve spool	Paint on valve spool; sticking	Clean valve spool. Binding is usually
	valve spool or scored valve	caused from an over tightened plug,
	spool	mounting bolt, fitting in valve body or
		tie rod bolt. If a plug or fitting in the
		valve body is leaking, do not overtighten
		in an effort to stop leak. This will distort
		body casting and cause spools to bind.
		Instead, the plug and fitting should be
		removed from valve body and be
		reconnected, using a new O-ring. Do
		not apply excessive pressure on
		mounting bolts. The rods should be
		torqued to 30 ft. lbs. Never force spool.
	Bent spool	Replace with new spool section.
	Foreign particles	Clean system and valve.
	Misalignment of control handle	Check linkage for binding condition.
	linkage

21