(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).
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Subtask 79-21-10-010-061
B. Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
4. Procedure
_________ (Ref. Fig. 401/TASK 79-21-10-991-301, 402/TASK 79-21-10-991-306, 403/TASK 79-21-10-991-302) Subtask 79-21-10-420-057
A. Install the lubrication unit. CAUTION : USE 2 WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS.
_______ ONE WRENCH TO HOLD THE UNION AND ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT. THIS WILL PREVENT DAMAGE TO THE HARDWARE.
(1) Remove the blanking caps and plugs from all ports and orifices.
R (2) Lightly coat the new O-ring (360), O-ring (370), O-ring (430), O-ring R (440) and O-ring (450) with engine oil (Material No. CP2442).
(3) Install the new O-rings (430), (440) and (450) on the nipples (400),
(410) and (420).
(4) Install the nipples (400) and (410) in the housing assembly and screw in place.
(5) TORQUE the nipples to between 168 and 186 lbf.in (1.89 and 2.10 m.daN).
(6) Install the nipple (420) in the housing assembly and screw in place.
(7) TORQUE the nipple to between 62 and 80 lbf.in (0.70 and 0.90 m.daN).
(8) Install the O-ring (360) in the groove of the lubrication unit housing.
(9) Install the O-ring (370) in the groove of the drive shaft.
(10) Set the lubrication unit (40) in its position relative to the AGB housing. Align the dowel pin of the unit with the dowel hole of AGB housing.
(11) Carefully engage the lubrication unit (40) into the AGB drive pad, to prevent damage or mis-installation of the O-ring (360) and (370).
(12) Install the QAD clamp (390) on the mating flanges.
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(13) Lubricate the threads of the QAD clamp screw with graphite grease (Material No. CP2101).
(14) Install the nut (380) on the QAD clamp screw.
(15) TORQUE the nut (380) to between 75 and 80 lbf.in (0.84 and 0.90 m.daN).
(16) Lubricate the threads of nipples with engine oil (Material No. CP2442).
(17) Connect the AGB/TGB supply tube (60) and the forward sump supply hose
(350) to their nipples. TORQUE the union nuts to between 450 and 550 lbf.in (5.08 and 6.21 m.daN).
(18) Connect the aft sump supply hose (70) to its nipple. TORQUE the union nut to between 270 and 300 lbf.in (3.05 and 3.39 m.daN).
(19) Install the scavenge tubes (130), (140), (150) and (160) and the oil supply tube (230) on the lubrication unit (40) as follows:
(a) Make sure that mating faces are clean and in good condition.
(b) Make sure that the gaskets (190) and (200) are serviceable.
(c) Lubricate the gaskets (190) and (200) with engine oil (Material No. CP2442) and install them between the mating faces.
(d) Lubricate the bolts (170) and (220) with graphite grease (Material No. CP2101).
(e) Install washers (180) and (210) and bolts (170) and (220) to attach the tubes to the lubrication unit (40).
(f) TORQUE the bolts (170) and (220) to between 47 and 53 lbf.in
(0.53 and 0.59 m.daN).
(20) Lubricate the threads of the union nut with engine oil (Material No. CP2442) and connect the oil supply tube (230) to the oil supply hose (from tank).
(21) TORQUE the union nut to between 1340 and 1540 lbf.in (15.14 and 17.40 m.daN). Safety the union nut with lockwire 0.032 in. (0.8 mm) DIA. (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) DIA. (Material No. CP8002)
(22) Lubricate the threads of bolts (340) with graphite grease (Material No. CP2101). 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 OIL 滑油(39)
