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(a) Remove the four bolts (180) and washers (170) and disconnect the FUEL IN tube (40) from the main oil/fuel heat exchanger (60). Remove the fan fire detector bracket (100). Remove and keep the gasket (160).
END OF PRE CFM SB 72-0515 and CFM SB 79-0022
POST CFM SB 72-0515 and CFM SB 79-0022
(b) Remove the four bolts (185) and disconnect the FUEL IN tube (40) from the main oil/fuel heat exchanger (60). Remove the fan fire detector bracket (100). Remove and keep the gasket (160).
NOTE : Make sure that the bolts (185) removed from the main
____ oil/fuel heat exchanger port have a correct length to attach correctly the FUEL IN tube (40) on the port. If not, discard these bolts.
END CFM SB 72-0515 and CFM SB 79-0022
(c) Remove the bolt (210) and nut (220) which attach the items which follow:
(d) Fully loosen the coupling nut (10) to disconnect the FUEL IN tube
(40) from the fuel hose (200) to IDG oil cooler.
(e) Remove the FUEL IN tube (40).
1_ Clamp (30) and plastic bushing (190) to the lower side of the
bracket (20). Remove items (30) and (190).
2_ Clamp (230) and plastic bushing (240) to the upper side of the
bracket (20). Remove items (230) and (240).
(3) Disconnect the drain tube (90) from the drain nipple (140) of the main oil/fuel heat exchanger (60).
(4) Remove the fuel tube (50) from the fuel pump nipple (250) to the fuel tube to FRV (270) as follows:
(a) Fully loosen coupling nut (260) to disconnect fuel tube (50) from fuel pump nipple (250).
(b) Fully loosen coupling nut (230) to disconnect fuel tube (50) from fuel tube to FRV (270).
(c) Remove fuel tube (50).
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(5) Remove the six nuts (130) and washers (120) which attach the main oil/fuel heat exchanger (60) to the fuel pump housing.
(6) Remove the main oil/fuel heat exchanger (60) from its mating flange and studs on the fuel pump housing. Remove and keep the gasket (110).
(7) If necessary, do the preservation procedure (Ref. TASK 79-21-20-620-002).
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TASK 79-21-20-400-002
Installation of the Main Oil/Fuel Heat Exchanger
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN) R No specific Torque Wrench : range 0.00 to 1.20 m.daN R (0.00 to 9.00 lbf.ft) R
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2101 USA MIL-T-5544
graphite grease (Ref. 70-30-00)
Material No. CP2442 *
engine oil (Ref. 70-30-00)
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C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION ------------------------------------------------------------------------------- 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM OIL 滑油(46)
