TM 9-2350-287-10
Section II. TROUBLESHOOTING
The troubleshooting table (pp. 3-4 through 3-18.1) lists common malfunctions you may find
during operation or maintenance of an M992A1 or its components. You should perform tests/
inspections and corrective actions in the order listed.
This manual cannot list all malfunctions that may occur, nor can it list all tests, inspections,
and corrective actions. If a malfunction is not listed or is not corrected by the corrective action
listed, notify your supervisor.
NOTE
Before you use the troubleshooting table, be sure you have
performed all the applicable operating checks presented in
Chapter 2.
The following Symptom Index is intended to assist you in locating the correct troubleshooting
procedure quickly.
SYMPTOM INDEX
Procedure:
Page
Troubleshooting
Symptom
PERSONNEL HEATER
15.
Heater smokes, bangs upon starting, or doesn’t start
16.
Heat output is too low
17.
Heat exchanger loads up with soot and/or carbon
3-2
Change 1
MAIN ENGINE
1.
Engine fails to crank, or cranks slowly, when starter switch is activated
2.
Engine cranks but fails to start
3.
Engine loses power
4.
Engine lacks acceleration
5
Engine overheats (coolant warning lamp is lit)
6.
Engine has low or no oil pressure
TRANSMISSION
7.
Transmission does not drive in any range
STEERING
8.
Vehicle is difficult to steer
BATTERIES/GENERATING SYSTEM
9.
Batteries will not crank engine
10.
Batteries do not stay charged
11. Batteries will not charge
12.
MASTER switch lamp does not light
TRACKS AND SUSPENSION
13.
Vehicle pulls to one side with steering wheel centered
14. Vehicle throws tracks
3-4
3-4
3-5
3-5
3-6
3-7
3-7
3-7
3-8
3-8
3-8
3-8
3-9
3-9
3-9
3-10
3-10
