TM 5-5420-280-23&P
0021 00
BRIDGE ANCHORING EYE, SWIVEL BLOCKS, AND LIFTING EYE REPLACEMENT (Contd)
NOTE
All bridge anchoring eyes, swivel blocks, and lifting eyes are
replaced the same way. This task covers replacement of one
anchoring eye, swivel blocks, and lifting eye. Left side is shown.
LIFTING EYE REMOVAL
1. Remove screw (6), washer (7), retainer plate (5), and lifting eye (4) from anchor boss (2) on side of
bridge quarter (1).
2. If damaged, replace threaded insert (3). Refer to WP 0029 00.
LIFTING EYE INSTALLATION
NOTE
All bridge anchoring eyes, swivel blocks, and lifting eyes are
replaced the same way. This task covers replacement of one
anchoring eye, swivel blocks, and lifting eye. Left side is shown.
Install lifting eye (4) on anchor boss (2) of bridge quarter (1) with retainer plate (5), washer (7), and
screw (6).
ANCHORING EYE AND SWIVEL BLOCKS REMOVAL
1. Bend two locking tabs (14) away from head of screws (15).
2. Support backing plate (8) and remove two screws (15), locking tabs (16), two swivel blocks (11), and
anchoring eye (13) from side of bridge quarter (1). Discard locking tabs (16).
3. Remove two swivel blocks (11) from anchoring eye pin (12).
ANCHORING EYE AND SWIVEL BLOCKS INSTALLATION
NOTE
Apply a light coat of grease to bridge anchoring eye pins at
installation. Apply a light coat of unlike metal compound to mating
surfaces of backing plate and bridge quarter at installation.
1. Install two swivel blocks (11) on anchoring eye pin (12).
2. Position backing plate (8) behind bridge quarter (1) with mounting holes (9) aligned.
3. Position bridge anchoring eye (13) and two swivel blocks (11) on bridge quarter (1) with dowel
pins (17) aligned with holes (10), and install two new locking tabs (16) and screws (15).
NOTE
Ensure that all mounting hardware is tightened to metric
standards unless otherwise noted. Refer to metric torque limits in
4. Tighten two screws (15) and bend one tab (14) up to head of screw (15) and other locking tab (14)
down to swivel block (11).
5. Install bridge half on bridge pallet. Refer to WP 0018 00.
Change 1
0021 00-2
