TM 5-5420-280-23&P
0020 00
BRIDGE QUARTER REPLACEMENT (Contd)
REMOVAL
NOTE
Note position and quantity of spacer washers for installation.
1. Remove cotter pin (4), washer (3), pin (6), and spacer washers (3) from retaining wire rope assembly
(5) and two brackets (2) at coupling end of bridge quarter (1) to be removed. Discard cotter pin (4).
2. Remove screw (11), washer (10), and pin (9) from retaining wire rope assembly (8), mounting bracket
(12), and pin hole (7) at ramp end of bridge quarter (1) to be removed.
WARNING
Launch beam and bridge half must be supported when removing
bridge quarters. Failure to comply may result in injury or death to
personnel.
Use care when removing bridge quarters. The lower supporting
pins and springs will fall out of launch beam arms as bridge
quarter is removed. The side supporting pins are under a small
amount of pressure and will fly out. The top supporting pins may
stay in launch beam arms. Failure to comply may result in injury
or death to personnel.
3. Using suitable lifting device, support and slide bridge quarter (1) off launch beam arms (16) and
supporting pins (15).
4. Remove four supporting pins (15) and two springs (19) from top and bottom of launch beam
arms (16).
NOTE
Note position of supporting pin without spring for installation.
5. Remove three supporting pins (15) and one spring (19) from side of launch beam arms (16).
6. If worn or damaged, remove four screws (18) and two slide plates (17) from side of launch beam arms
(16).
7. Repeat steps 1 through 6 to remove opposite bridge quarter (14) from launch beam (13).
3
1
2
7
4
1
8
6
12
9
11
3
10
5
RETAINING WIRE ROPE ASSEMBLY, RAMP END
RETAINING WIRE ROPE ASSEMBLY, COUPLING END
(FRONT)
(REAR)
0020 00-2
