TM 10-4320-307-24
3-25
FAN HUB AND BRACKET REPAIR .
This task covers:
a. Disassembly
b. Cleaning/!lnspection
c. Assembly
INITIAL SETUP
Tools
Equipment
Tool kit, general mechanic's (Item 1, Appendix B)
Condition
Torque wrench (Item 2. Appendix B)
Reference
Condition Description
Materials/Parts
Paragraph
Fan hub and bracket
2-48
removed
Grease (Item 13, Appendix C)
Lubricating oil (Item 22, Appendix C)
General Safety Instructions
Locknut
Well ventilated area required for cleaning procedures
Retaining ring
Grease fitting
O11 seal
Dry cleaning solvent (Item 30, Appendix C)
DISASSEMBLY:
1.
Remove two pipe plugs (1) from fan pulley (2).
2.
Remove six capscrews (3), lockwashers (4). Fan pilot
spacer (5), and fan spacer gasket (6).
3.
Remove locknut (7) and washer (8) from shaft (9).
4.
Remove fan pulley (2) from shaft (9).
5.
To remove inner race of front bearing (10) and spacers
(11 and 12) from fan pulley (2), hold a flat punch
against back side of race. Hit punch with a hammer
until race is loosened from bore.
6.
Remove oil seal (13) and inner race of rear bearing
(14).
7.
To remove outer races for bearings (10 and 14). hold a
flat punch against back side of race. Hit punch with a
hammer until race is loosened from bore.
8.
Remove retaining ring (15) from bore of fan pulley (2).
3-73
