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TM 10-3930-669-10
Section II. TROUBLESHOOTING PROCEDURES
3-2. OPERATOR TROUBLESHOOTING INTRODUCTION.
This section contains step-by-step procedures for identifying, locating, and isolating equipment malfunctions.
3-3. OPERATOR TROUBLESHOOTING SYMPTOMS.
Refer to Table 3-1 for a list of common malfunctions. Table 3-2 lists the test/inspection and corrective action required for
each malfunction. Tests/inspections and corrective actions should be performed in the order listed. If a malfunction is
not listed, or is not corrected by listed corrective actions, notify your supervisor.
Table 3-1. Operator Troubleshooting Symptom Index
Troubleshooting
Page
Procedure
ENGINE
1.
Engine will not crank............................................................................................................................
3-3
2.
Engine cranks but will not start ............................................................................................................
3-4
3.
Low engine oil pressure ......................................................................................................................
3-5
4.
Engine starts but will not keep running ................................................................................................
3-5
5.
Engine exhaust smokes excessively....................................................................................................
3-5
6.
Engine operating temperature too high ................................................................................................
3-5
7.
Engine does not develop full power or idles rough ...............................................................................
3-6
ELECTRICAL SYSTEM
1.
Gauge lights do not operate ................................................................................................................
3-6
2.
Glow plug indicator does not operate ..................................................................................................
3-7
TRANSMISSION
1.
Transmission slips or will not engage in forward...................................................................................
3-7
2.
Transmission will not engage in forward or reverse .............................................................................
3-8
3.
Transmission will not engage in high gear ...........................................................................................
3-8
BRAKE SYSTEM
1.
Brakes do not apply, apply slowly, or apply abruptly ...........................................................................
3-8
2.
Brakes do not release or release slowly ..............................................................................................
3-8
3.
Parking brake does not release or engage ..........................................................................................
3-9
WHEELS
1. Wheel(s) wobble .....................................................................................................................................
3-9
3-2
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