TM 5-4310-452-14
4-92. COMPRESSOR FAN AND FAN DRIVE MAINTENANCE.
THIS TASK COVERS
a. Removal
c. Assembly
b. Disassembly
d. Installation
INITIAL SETUP
Equipment Conditions:
Materials/Parts:
• Engine off.
• Two bushings
• Left and right door assemblies open,
• Two retaining rings
• Compressor fan belt removed (see para-
• Two self-locking nuts
graph 4-91).
Tools/Test Equipment:
• General mechanic's tool kit
• Arbor press
a. REMOVAL
1.
Remove 4 screws (1), and nuts (4) from fan bearing housing support (2) and fan shroud (3).
CAUTION
Use care when removing fan bearing housing support from fan shroud. Striking fan against fan
shroud can result in bent fan blades or damage to fan shroud. '
2.
Remove fan bearing housing support (2) from fan shroud (3).
b. DISASSEMBLY
1.
Remove capscrew (23), pulley (21), 3 flatwashers (22), and self-locking nut (16) from idler lever assembly (17).
Discard self-locking nut.
2.
Remove spring (13) from idler lever assembly (17) and fan bearing housing support bracket (2).
NOTE
Keep idler lever assembly together on capscrew when removing.
3.
Remove self-locking nut (12), idler lever assembly (17), 8 spring tension washers (14), spacer (18), capscrew
(20), and washer (19) from fan bearing housing support (2). Discard self-locking nut.
4.
Remove 2 bushings (15) from idler lever assembly (17). Discard bushings.
5.
Measure and record distance between hub (7) and plate on fan bearing housing support (2) and from pulley (25)
to plate.
CAUTION
Use care not to bend fan blades when removing sleeve nuts from shaft.
6.
Remove sleeve nut (10) and fan assembly (8) from shaft (26). Remove 6 screws (9) from fan assembly and hub
(7). Remove hub.
4-186
