TM 10--3510--221--24
0259 00--1
FRONT DRUM BEARING REPLACEMENT
0259 00
THIS WORK PACKAGE COVERS:
Removal, Installation
INITIAL SETUP:
Maintenance Level
Materials/Parts
Direct Support
Grease, General Purpose (Item 3,WP 0271 00)
Rag, Wiping (Item 4, WP 0271 00)
Sealant, Multi--Purpose, (Item 5, WP 0271 00)
Washer, Lock, (Item 33, WP 0275 00)
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
LADS power shut off at main control
Bearing Puller (Item 4, WP 0272 00)
enclosure (WP 0112 00).
Removal Tool, Bearing (Item 7, WP 0272 00)
Socket, 1--1/2”, (Item 8, WP 0272 00)
Wrench, Torque, (Item 9, WP 0272 00)
Forklift, 5,000 lbs
REMOVAL
1. Remove brake rotor (WP 0261 00).
2. Loosen two set screws (1) on brake hub (2), then brake hub and machine key (3) from drive shaft (4).
WARNING
Front bearing is heavy and hard to handle. Provide adequate support while removing.
Failure to follow this precaution could result in serious personnel injury or equipment
damage.
3. Remove six screws (5) and lock washers (6) securing cover (7) to housing (8).
4. Slide dust seal (9) and cover (7) off of drive shaft (4).
5. Remove four screws (10), spacers (11), lock washers (12), and nuts (13) securing housing (8) to bearing
support frame (14).
6. Straighten tab (15) on retainer (16).
7. Unthread spanner nut (17) from drive shaft (4) using bearing removal tool.
8. Slide bearing removal tool onto drive shaft (4) then drive bearing (18) forward until it is free from inner race
(19).
9. Slide inner race (19) off of drive shaft (4).
10. Slide housing (8) and bearing (18) off of drive shaft (4).
11. Slide dust seal (20) off of drive shaft (4).
12. Remove bearing (18) from housing (8).
13. Remove six screws (21) and lock washers (22) securing cover (23) to housing (8).
14. Wipe residual dirt and grease off of drive shaft (4), covers (7 and 23), housing (8), dust seals (9 and 20),
retainer (16), spanner nut (17), and inner race (19).
