TM 5-5420-280-23&P
0023 00
BRIDGE SUPPORT WHEEL HUB AND TIRE, BEARINGS, AXLE BRACKET, AND SPRING SUPPORT
ASSEMBLY MAINTENANCE (Contd)
ASSEMBLY
NOTE
Apply grease to bearings at installation.
1. If removed, install support wheel tire (4) on hub (21).
NOTE
Ensure snapring is installed with bevel edge facing in.
2. Install two bearings (3) on support wheel hub (21) with two snaprings (2).
INSTALLATION
NOTE
Perform steps 1 through 4 to install spring support assembly.
Ensure that all mounting hardware is tightened to metric
standards unless otherwise noted. Refer to metric torque limits in
There are four retainer support brackets per bridge quarter. One
retainer support bracket has a cutaway for clearance; three do not.
Illustration shows retainer support bracket with cutaway.
1. Install retainer support bracket (9) on support bracket (8) with four washers (11) and screws (10).
2. Install spring (7), washer (5), and screw (6) on spring support bracket (13). Tighten screw (6) until
spring (7) is compressed to align mounting holes on support bracket (8) with slots on spring support
bracket (13).
NOTE
Apply a light coat of grease to plate and both sides of spring
support bracket at installation.
3. Install spring support bracket (13) with spring (7), on support bracket (8) with plate (19), four spacers
(20), and screws (18).
4. Loosen screw (6) until washer (5) contacts top of retainer support bracket (9).
NOTE
Perform steps 5 through 7 to install support wheel and axle
bracket.
5. Install axle bracket (14) on spring support bracket (13) with four new lockwashers (15) and
screws (16).
NOTE
Ensure snapring is installed with bevel edge facing in.
6. Install support wheel hub (21) and support wheel tire (4) on shaft (17) with snapring (1).
7. Install bridge half on bridge pallet. Refer to WP 0018 00.
0023 00-4