TM 5-3810-306-20
CHAPTER 3
TROUBLESHOOTING
INTRODUCTION
This section provides information useful in diagnosing and correcting unsatisfactory operation or failure of the container
crane and its components. Malfunctions which may occur are listed in Table 3-1. Each malfunction is followed by a listing
of probable causes. The corresponding corrective actions suggest applicable maintenance actions for correcting the
malfunction.
SYMPTOM INDEX
Malfunction
Troubleshooting
Procedures
Page
ENGINE
Engine will not crank......................................................................................................................................................3-4
Engine hard to start or will not start -
exhaust smoke present ..............................................................................................................................................3-5
Engine cranks but will not start -
no smoke from exhaust ..............................................................................................................................................3-6
Engine starts but will not keep running ..........................................................................................................................3-6
Engine will not shut off...................................................................................................................................................3-7
Rough idle, warm engine ...............................................................................................................................................3-7
Engine surges at idle .....................................................................................................................................................3-9
Low lubricating oil pressure ...........................................................................................................................................3-9
Lubricating oil pressure too high..................................................................................................................................3-10
Engine oil loss..............................................................................................................................................................3-11
Contaminated engine oil ..............................................................................................................................................3-11
Exhaust smoke excessive under load .........................................................................................................................3-11
Engine will not reach rated speed when loaded...........................................................................................................3-12
Low power....................................................................................................................................................................3-13
Engine misfiring ...........................................................................................................................................................3-14
Fuel knock ...................................................................................................................................................................3-15
Excessive fuel consumption ........................................................................................................................................3-15
Excessive vibration ......................................................................................................................................................3-16
Excessive engine noises..............................................................................................................................................3-17
Fuel or oil leaking from exhaust manifold ....................................................................................................................3-18
3-1
