TM 5-3805-262-203-25. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION5. BUCKET HEIGHT CONTROL NOT OPERATING PROPERLY (Cont) .Step 2. Start engine and operate at idle speed.Press 5 ampere circuit breaker on right instrument panel.Place LIFT ARM control lever in RAISE position and check if controllever returns to NEUT. position when desired height is reached.a .b.c .If control lever did not return to NEUT. position when desiredheight was reached, go to step 5 below.If 5 ampere circuit breaker blew, try to determine if it blewimmediately or when bucket reached desired height. If circuitbreaker blew immediately, problem is short circuit in hydraulicfilter switches or warning lamp circuitry. Perform resistancec h e c k s o f c i r c u i t t o i s o l a t e d e f e c t i v e p a r t . I f c i r c u i t b r e a k e rblew when bucket reached desired height, go to step 3 below.If bucket stopped at desired height, problem was momentary shortcircuit causing circuit breaker to open. Shut off engine.Step 3.Turn ignition key switch to off position.Check orange-white wire between 5 ampere circuit breaker and controlvalve for broken or cracked insulation or bare wire areas.a. Repair broken or cracked insulation or bare wire areas by apply-ing insulation tape to area.b. If wire is okay, go to step 4 below.3-185
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