TM-5-5420-203-14
BRIDGE, ARMORED VEHICLE LAUNCHED, SCISSORING TYPE CLASS 60 & CLASS 70 ALUMINUM, 60 FOOT SPAN; FOR M48A5 AND M60 LAUNCHER
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE
JUNE 1991
TM-5-5420-203-14 - Page 169 of 298
TM 5-5420-203-14
3-6. TROUBLESHOOTING.
SYMPTOM INDEX
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Hydraulic fluid under pressure is observed
3-3
Bridge will not lift from bridge seat. . . . . . . . . . . . . . . . . . . . . . . . . . . .
●
. . .
....3-4
Bridge reacts rapidly to controls (jerks, jumps) . . . . . . . . . . . . . . . . . . . . . .
.3-4
Bridge reacts slowly to controls
Bridge reacts well to controls, then fails to move . . . . . . . . . . . . . . . . . . .
..3-4
Bridge lifts from bridge seat slowly or stops
. . . . . . .
....
●
. . . . . .
....
●
3-5
Bridge is slow to raise to vertical position
. .
........
., . . . . . . . . . . . . . . .
3-5
Bridge raises to vertical position, then stops
. 00 . . 00 .0000.
..
●
. . . . . . . . . . .
3-5
Bridge begins to lower, then stops
●
........
,. . . . . . . . . . . . . . . . .
......
3-6
Br
i
dge will not fully extend flat prior to laying . . . . . . . . . . . . . . . . . . . . . .
..3-6
Bridge assumes an unusual position during launch/retrieval . . . . . . .
..3-6
3-4
1.
3.
4.
11.
12.
13.
14.
15.
Hydraulic fluid under pressure is observed
. . . . . . . . . . . . . . . . . . . . . . . . 6 *.
.
3-3
Bridge reacts rapidly to controls (jerks, jumps) . . . . . . . . . . . . . . . . . . . . .
..3-4
Bridge reacts slowly to controls
. . . . . . . .
...
. . . . . . . . . . . . . . . . .
..0.
... . .
..0
3-4
Bridge assumes an unusual position during launch/retrieval . . . . . . . .
.3-6
Bridge will not lift from launched position
. .
.0.
....00. . . . . . . . . . . . . . . .
.-
Bridge raises from ground, but stops
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 . .
..0
3-7
Bridge will not raise to full vertical position
. . . . .
......
. . . . .
......
●
. .3-7
Bridge will not lower to bridge seat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7
3-7
Table 3-1. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. HYDRAULIC FLUID UNDER PRESSURE IS OBSERVED.
Step 1. Check hydraulic connections at leak.
Tighten loose connections.
Step 2. Check hydraulic quick-disconnects.
Reconnect hydraulic quick-disconnects.
Step 3. Check threads of hoses and lines at leak.
Replace defective component if threads, etc. are
damaged.
3-3
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