TM-5-5420-202-10
LAUNCHER, M48A5 TANK CHASSIS
OPERATOR'S MANUAL
DECEMBER 2009
TM-5-5420-202-10 - Page 240 of 535
TM 5-5420-202-10
0039
OPERATOR MAINTENANCE
TROUBLESHOOTING SYMPTOM INDEX
GENERAL
This work package (WP) lists the common malfunctions that may occur during the operation or maintenance of the
Armored Vehicle Launched Bridge (AVLB) or its components. Locate the malfunction/system in the following index
and then refer to the corresponding WP for the appropriate troubleshooting procedure.
This manual cannot list all malfunctions that may occur or all tests, inspections, and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
If the corrective action requires lubrication or oil, refer to WP 0074 or notify f eld maintenance.
TROUBLESHOOTING SYMPTOM INDEX
The Troubleshooting Symptom Index lists common malfunctions found during operation of the AVLB. The
Troubleshooting Symptom Index is divided into sections. Each section covers malfunctions common to the
different systems of the vehicle.
The operator’s manual cannot list all possible malfunctions, nor all the tests and inspections required for corrective
actions. If a malfunction is not listed, or is not corrected by the listed corrective action, notify your supervisor.
Malfunction/Symptom
Troubleshooting Procedure
ENGINE
1
. E
n
g
i
n
ed
o
e
sn
o
tc
r
a
n
k........................ .........
W
P0
0
4
0
2
. E
n
g
i
n
ec
r
a
n
k
sb
u
td
o
e
sn
o
ts
t
a
r
t
.................... .........
W
P0
0
4
0
3.
Dark or black smoke blowing through rear grille doors (after warm-up).
. . .
. . . . . . . . .
WP 0040
4.
Engine runs rough or does not idle properly (after warm-up).
. . . . . . . .
. . . . . . . . .
WP 0040
5.
Powerplant warning light comes on while engine is running above 750 to 800
R
PM .
........................................
WP 0040
BRAKES
6
. P
a
r
k
i
n
gb
r
a
k
e
i
ss
t
u
c
k
......................... .........
W
P0
0
4
1
VOLTAGE REGULATOR
7.
Battery-generator indicator reads in yellow or red when engine is running.
. .
. . . . . . . . .
WP 0042
LIGHTS
8
. L
i
g
h
t
sa
r
e
i
n
o
p
e
r
a
b
l
e
. ........................ .........
W
P0
0
4
3
STEERING
9.
Vehicle leads to right or left on fa
t
r
o
a
d
.
................. .........
W
P0
0
4
4
PERSONNEL HEATER
10.
Personnel heater will not operate properly.
. . . . . . . . . . . . . . .
. . . . . . . . .
WP 0045
0039-1/2 blank
AUXILIARY SYSTEMS AND CONTROLS
11.
Driver’s night vision viewer is inoperative.
. . . . . . . . . . . . . . .
.
.
.
.
.
.
. WP 0046
12.
Driver’s night vision viewer picture quality is poor.
. . . . . . . . . . . .
.
.
.
.
.
.
. WP 0046
13.
Lack of air in gas-particulate f
l
t
e
r
u
n
i
t
.
.........................
W
P
0
0
4
6
14.
Bridge fails to lift off bridge seat or fails to lift when retrieving bridge.
. . . .
. .
.
.
.
.
. WP 0046
15.
Bridge fails to open during launching or fails to close when retrieving.
. . .
. .
.
.
.
.
. WP 0046
16.
Launcher does not engage bridge during retrieving.
. . . . . . . . . . .
.
.
.
.
.
.
. WP 0046
17.
Launcher does not release bridge.
. . . . . . . . . . . . . . . . . .
.
.
.
.
.
.
. WP 0046
ENDOFWORKPACKAGE
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