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TM 5-4210-220-12
4-20. RADIATOR AND COOLING SYSTEM - Continued
4-20.2 Fan Assembly - Continued
c.
Fan Pulley Replacement.
(1)
Carry out steps 1 thru 9 of b. preceding.
(2)
Lubricate new fan pulley using grease (item 16, Appendix E).
NOTE
Some fan hubs are fitted with grease nipple on rear of pulley and a pressure relief valve on rear of
support block. Lubricate until grease comes out of the pressure relief valve. Other fan hubs are fitted
with pipe plugs. Remove the plugs and install a grease nipple, (1/8 in. NPT) in one port and a relief
valve (1/8 in. NPT, 1-5 psi) in the other port. Lubricate until grease comes out of pressure relief
valve. Then remove fittings and refit pipe plugs.
(3)
Carry out steps 10 thru 17 of b. preceding but install new fan pulley to original fan clutch.
4-328/(4-329 Blank)
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