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(a) Remove the new rotating mating ring (20) from its packaging. Apply a thin layer of engine oil (Material No. CP2442) to the following new O-rings and new bal seal:
- O-ring (10) for the fuel pump pad,
- O-ring (15) for the starter pad,
- O-ring (15) for the IDG pad,
- O-ring (10) for the hydraulic pump pad. Install the O-ring (10) in the inner diameter groove of rotating ring (20) for the fuel pump pad and hydraulic pump pad. Install the bal seal (15) in the inner diameter groove of rotating ring (20) the IDG pad and starter pad.
END OF SB CFM 72-105
(3) Depending on the diameter of the new rotating mating ring assembly you install, get the applicable tool diameter configuration from the SEALOL AND MAGNETIC SEALS - R/I (856A3576G01).
(4) Put the new mating ring (20) on the applicable tool, (856A3576G01), as follows:
- loosen the items P06 and P05 (larger diameter tool) or P11 and P05 (smaller diameter tool)
- put the new mating ring (20) on the tool, its polished face in contact with the nylon/viton end of item P02 (larger diameter tool) or P09 (smaller diameter tool)
- tighten the item P05 by hand until the rotating mating ring (20) is held tightly in the collet of item P02 or P09.
(5) Engage the tool and mating ring assembly on the gearshaft. Turn the tool with the handle until you feel the slots of the rotating mating ring (20) engage the lugs of the gearshaft bearing.
(6) Turn the tool clockwise then counterclockwise to make sure that the lugs of the rotating mating ring are correctly engaged in the slots of the bearing (inner race).
(7) Loosen the items P06 and P05 (or P11 and P05) and remove the tool.
(8) Lubricate the polished face of the rotating mating ring (20) with engine oil (Material No. CP2442).
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G. Installation of the Sealol Seal Housing Assembly
CAUTION : AT INSTALLATION, MAKE SURE THAT PARTICLES, EVEN OF EXTREMELY
_______ SMALL SIZE, ARE NOT LEFT BETWEEN THE POLISHED FACE OF THE ROTATING MATING RING AND THE CARBON RING FACE OF THE SEALOL SEAL HOUSING ASSEMBLY. OTHERWISE, LEAKS WILL OCCUR.
CAUTION : USE CLEAN COTTON GLOVES TO HANDLE THE SEALOL SEAL HOUSING
_______
ASSEMBLY.
CAUTION : THE INSTALLATION OF THE SEALOL SEAL HOUSING (40) MUST BE DONE
_______ BY HAND AND WITHOUT SHOCKS TO PREVENT DAMAGE TO THE CARBON RING.
(1) Lubricate a new O-ring (30) for the IDG drive pad or O-ring (30) for the hydraulic pump drive pad or O-ring (30) for the fuel pump drive pad or O-ring (30) for the starter drive pad with engine oil (Material No. CP2442) and install in the outer diameter groove of sealol seal housing assembly (40).
(2) Manually engage the housing assembly (40) in the bore of the pad until the O-ring (30) is fully against the entrance of the bore.
(3) Apply a thin layer of graphite grease (Material No. CP2101) to the 3 studs of the pad.
(4) Install the 3 washers (50) on the 3 studs. Engage the 3 nuts (60) on the studs and tighten continuously the nuts, each in small increments, until the flange of the housing assembly comes in contact with its mating face on the pad. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM ENGINE 发动机 2(150)
