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TM 10-4320-324-14
5-20. Cooling Fan Repair/Replacement (CONT).
b.
Disassembly.
(1)
Remove nut (1), bolt (2), pulley (3), roller (4), and shaft (5).
(2)
Remove ring (6), two bearings (7 and 8), and bushing (9) from jacket (10).
c.
Cleaning/Inspection.
WARNING
Dry cleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and gloves and use only in a well
ventilated area. Avoid contact with skin, eyes, and clothes and don't breathe vapor. Do not use near open flame or
excessive heat. The flash point is 100°F-138°F (38°-50°°C). If you become dizzy while using cleaning solvent, get fresh
air immediately and get medical aid. If contact with eyes is made, wash your eyes with water and get medical aid
immediately.
(1)
Clean all parts with P-D-680 and wipe clean with cloth.
(2)
Inspect roller and jacket for cracks. If cracks are found replace defective part.
(3)
Check inside of jacket for signs of wear, indicating worn bearings. If signs are present, replace defective
bearing.
d.
Assembly.
(1)
Fill bearings (7 and 8) with grease and install one bearing into jacket (10) with enclosed side to front.
(4)
Install shaft (5) in bearing (7) and bushing (9) on shaft.
(5)
Fill space between bushing (9) and jacket (10) with grease.
(6)
Install bearing (8) into jacket (10) so that closed side seats against bushing (9).
(7)
Install ring (6) into groove.
5-64
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