TM 5-3810-306-20
SYMPTOM INDEX
Malfunction
Troubleshooting
Procedures
Page
HYDRAULIC SYSTEM (CONTD)
Erratic operation of extending telescoping cylinder .....................................................................................................3-38
Erratic operation of retracting telescoping cylinder......................................................................................................3-39
Telescope cylinder will not extend ...............................................................................................................................3-40
Telescope cylinder will not retract................................................................................................................................3-41
Hoist will not raise load ................................................................................................................................................3-42
Hoist will not lower load................................................................................................................................................3-43
Slow hoist operation down...........................................................................................................................................3-43
Slow hoist operation up................................................................................................................................................3-44
Erratic hoist operation down ........................................................................................................................................3-44
Sticking spool in hoist control valve .............................................................................................................................3-44
Boom swing operation erratic in either direction..........................................................................................................3-46
Boom swing operation erratic in one direction only .....................................................................................................3-47
Boom will not swing in either direction.........................................................................................................................3-47
Swing operation slow in either direction.......................................................................................................................3-48
Swing operation slow in one direction only..................................................................................................................3-48
Swing brake will not operate........................................................................................................................................3-49
Swing brake drags .......................................................................................................................................................3-49
Boom swing slowly.......................................................................................................................................................3-50
Swing motor continues to operate when swing control.......................................................................................................
is in neutral position..................................................................................................................................................3-50
Swing motor turning in wrong direction........................................................................................................................3-50
Swing motor noisy........................................................................................................................................................3-50
No oil flows in hydraulic systems .................................................................................................................................3-51
Excessive hydraulic pressure buildup..........................................................................................................................3-51
Pump noise, accompanied by oil foaming in reservoir ................................................................................................3-51
CAB HEATER
Cab heater does not work when switch is on...............................................................................................................3-52
Cab heater starts after switching on several times ......................................................................................................3-52
No cab heater ignition voltage .....................................................................................................................................3-53
Cab heater motor does not start ..................................................................................................................................3-53
Cab heater dosing pump ticking not audible................................................................................................................3-54
STE/ICE
Introduction ..................................................................................................................................................................3-55
RT875CC vehicle test card (VTC) ...............................................................................................................................3-55
STE/ICE individual battery test card ............................................................................................................................3-56
STE/ICE battery series pair test card...........................................................................................................................3-56
STE/ICE battery pack test card....................................................................................................................................3-56
3-3
