TM 5-4310-452-14
4-92. COMPRESSOR FAN AND FAN DRIVE MAINTENANCE (Con't).
12.
Measure and record distance between pulley (31) and compressor end housing (29).
13.
Remove 2 setscrews (32) from pulley (31) and bushing (33). Install one setscrew (32) in empty jackscrew hole
until pulley is off bushing.
14.
Using screwdriver in slot of bushing (33), pry bushing and pulley (31) off shaft (34). Remove key (30}.
c. ASSEMBLY
1.
Install key (30) in shaft (34).
2.
Position and hold pulley (31) and bushing (33) in place on shaft (34) using distance recorded before removal.
Install 2 setscrews (32) in bushing (33) and pulley (31).
3.
Using arbor press, press shaft (26) and 2 bearings (5) in fan bearing housing (28). Install 2 new retaining rings
(6) on shaft.
4.
Position fan bearing housing (28) in place on plate of fan bearing housing support (2). Install 4 screws (27) and
nuts (11).
5.
Position and hold hub (7) in place on shaft (26) using distance recorded before removal. Install sleeve nut (10)
on shaft.
6.
Position and hold pulley (25) in place on shaft (26) using distance recorded before removal. Install sleeve nut
(24) on shaft.
7.
Using an arbor press, press 2 new bushings (15) in idler lever assembly (17).
8.
Install capscrew (20), washer (19), and spacer (18), in idler lever assembly (17). Install 8 spring tension washers
(14) on capscrew (20) and spacer (18).
9.
Position idler lever assembly (17) on fan bearing housing support (2).
10.
Install spring (13) on idler lever assembly (17) and fan bearing housing support bracket (2). Swing idler lever
assembly (17) into position on fan bearing housing support (2) and install new self-locking nut (12),
TA505542
4-188
