Cub Cadet 59A40003727 - Manual (Page 24)

24
seCTion 12: TroublesHooTing
probleM possible Cause soluTion
Jerky operation • Air in hydraulic system
• Cold hydraulic oil
• Low hydraulic oil level
• Poor oil circulation
• Worn or damaged hydraulic pump
• Air leak in pump inlet line
• Cycle cylinders several times to
purge system of air.
• Run engine to warm oil.
• Add oil to level specified.
• Change oil filter and clean
screen in tractor hydraulic
system.
• Repair or replace pump.
• Check, tighten or replace inlet
line.
slow operation • Faulty valve
• Air in hydraulic system
• Hydraulic oil too heavy
• Oil filter plugged
• Slow engine speed
• Cylinder piston seals leaking
• Valve out of adjustment or malfunctioning
• Tractor hydraulic pump malfunctioning
• Hydraulic couplers not completely engaged
• Repair or replace valve.
• Cycle lift cylinders and bucket
cylinders several times to free
system from air.
• Change to proper oil.
• Clean and replace filter.
• Increase engine speed rate.
• Repair (if available) or replace
• Adjust, repair or replace.
• Repair or replace pump.
• Connect hydraulic couplers.
oil leaks • Loose hose connections
• Fittings or hoses defective
• Hydraulic cylinder seals worn or damaged
• Valve components worn or damaged
• Tighten fittings.
• Use thread sealer on pipe
(tapered) threads.
• Repair seals (if available) or
replace cylinder.
• Repair and/or replace.
Cannot raise load • Low oil supply
• Bucket overloaded
• Hose fittings not fully engaged in couplers
• Cylinder piston seal leakage
• Valve out of adjustment or malfunctioning
• Hydraulic pump malfunctioning
• Load is greater than boom lift capacity • Check oil level.
• Try lighter load.
• Recouple hoses.
• Repair or replace.
• Repair or replace.
• Repair or replace.
• Check loader specifications.