TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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I F1g11, . e .j.} S. n:ssi 119 1l sml toj ,, 1/ rii'e 11il 111/ h•mi 110. (9) Position fan drive housing cover (fig. 3-229) on arbor p1·ess using suitable blocks for support TM 9-2815·220-34 • f "1gue J·l9. Pre+s1110 d11trlt l)per ball beori11f1 i11/ufn11 cfrive IH11tsi11g . - and press clutch upper ball bearing in lo cover. bly (6, fig. 3-212) in front fan drive housing assem- NOTE bly (2, fig. 3-216). Using a new preformed packing(7, Install eight self-locking nuts securing fig. 3-212) install assembled fan drive housing front fan drive covers on lhe short sluds, cover (5) on drive housing cover. Install slotted four nuts are used when installing two nuts (8) securing cover to housing. (Only foul' nuts fuel injector Lube brackets. Install four are required on rear fan tower). self-locking nuts on short studs securing (11) Cont lip of fan drive vertical shaft oil seal rear fan drive cover, eight nuts are used (1) with GAA grease MIL-G-10924, and install fan when installing four fuel injector tube driveoil seal housing(2)onfan drivehousingcover brackets. (5) and secure wilh six drilled head bolts (10) and (10) Install assembled fan drive clutch assem- flat washer (9) and install locking wire. Section XIV. REPAIR OF REAR FAN DRIVE HOUSING AND CLUTCH ASSEMBLY AND ACCESSORY DRIVE HOUSING 3-95. General This section covers the repair of the rear fan drive housing and clutch assembly, and accessory drive housing. Specific instructions on disassembly, cleaning, inspection, and assembly accompany the repair operation. Repair standards of individual components follow the inspection procedures. Stud identification tables arc included where applica- ble. 3-96. Disassembly cc Rear Fan an cl llccesso1·y Dl'ivc flousing. (1) Refer to paragraph 3-91 and remove oil seal housing fr om fan drive housing cover. (2) Hefer to paragraph 3-91 and remove fan drive clutch and cover from rear fan drive housing assembly. (3) Remove an<l discard fou1· preformed pack- in (63, fig. 3-230) from oil transfer tubes. Remove two cotter pins (32) slotted nuts (31) and flat washers (30) attaching injection advance bearing cap (29) to accessory drive housing (51) and remove bearing cap. NOTE Bearing cap and accessory drive housing are stamped with corresponding numbers (fig. 3-255) to prevent mismating of parts. Cap should be loosely attached on housing after advance assembly is removed. Change 1 3-133