TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 COOLING FANS, VANES, FAN HOUSINGS, AND SEALS REPLACEMENT 0054 00 REMOVAL (Continued) NOTE 20 21 23 18 22 19 A Front and rear fan tower seal replacement procedures are identical. CAUTION Do not attempt to pry seal housing from fan tower: both the seal housing and fan tower are made of aluminum and are easily damaged. 6. Remove seal housing (18) from fan tower (19). a. Remove six screws (20) with flat washers (21) securing seal housing (18). b. Install two mechanical pullers (item 77) in threaded holes (A) of seal housing. Alternately tighten pullers to remove seal housing. c. Remove and discard gasket (22). d. Remove seal (23) from oil seal housing (18). Discard seal. INSPECTION All parts must be inspected with care. Replace parts if damage or wear exceeds allowable limits. 1. See WP 0028 for Standard Inspection Procedures. INSTALLATION 1. Install new seal (23) in seal housing (18). a. Install seal (23) (item 191, WP 0175) in housing (18) with lip of seal towards bottom of housing and felt towards top. 2. Install seal housing (18) on fan tower (19). a. Assuring that mating surfaces are clean, place new gasket (22) (item 257, WP 0175) on fan tower. b. Install oil seal housing (18). c. Secure with six screws (20) and flat washers (21). WP 0054 00-3