TROUBLESHOOTING CONTROL LEVERS HYDRAULIC SYSTEM 11-9 Problem Cause Solution Moves Hard Corroded joint Worn out pusher See your authorized dealer. See your authorized dealer. Does Nothing Worn out pusher Pilot valve See your authorized dealer. See your authorized dealer. Does Not Return to Neutral Pilot valve See your authorized dealer. Too Much Play Worn out pivot joint See your authorized dealer. Lever is Not Vertical In Neutral Pilot valve See your authorized dealer. Problem Cause Solution Hydraulic Functions are Slow Low oil level Cold oil Wrong oil Engine speed too low Pilot circuit Worn pump Restricted pump suction line Fill reservoir to full mark. Push hydraulic warm up switch.
Drain tank. Use correct oil. Increase speed or see your authorized dealer. See your authorized dealer. See your authorized dealer. See your authorized dealer. Hydraulic Oil Overheats Wrong oil Air leak in pump suction line Oil lines restricted Low oil level Plugged filters Worn pump Plugged radiator or oil cooler Oil cooler bypass Use correct oil. See your authorized dealer. See your authorized dealer. Fill reservoir to full mark. Install new filters. See your authorized dealer. Clean and straighten fins. See your authorized dealer.