(50) and (180) to the oil supply tube (20).

 (3) Remove clamps (50), (180) and shields (70) and (170).

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 (4) Remove the aft sump oil supply tube as follows:

 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.
 (a) Remove the bolt (110) which attaches the clamps (90) and (100) to the bracket (80) on flange T.

 (b) Remove the bolt (140) which attaches the clamps (120) and (130) to the bracket (150) on flange S.

 (c) Disconnect the oil supply tube (20) from the oil supply tube (10) and from the aft sump oil supply tube (30).

 (d) Remove oil supply tube (20).

 (5) Install a fitting reducer 0.750-16 and 0.5625-18 THD (19 and 14.3 mm) to the end of the aft sump oil supply tube (30).

 (6) Connect the test rig equipped with ADAPTER, TEST RIG - AIR FLOW CHECK (856A3267G02), to the fitting reducer.

 (7) TORQUE the union nuts to between to between 225 and 275 lbf.in (2.54 and 3.10 m.daN).

R (8) Do the check of the aft sump oil supply circuit (Ref. TASK 71-00-00-R 820-002).
 (9) If the measured flow rate is not within the limits, do the cleaning of the oil inlet cover, and do the cleaning of the aft sump oil supply tube.
 (10) Disconnect the test rig from the fitting reducer.

 (11) Remove the fitting reducer from the aft sump oil supply tube (30).

 (12) Install the aft sump oil supply tube (20) as follows:

 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.
 (a) Connect the oil supply tube (20) to the oil supply tube (10) and to the aft sump oil supply tube (30).

 (b) Tighten the coupling nuts by hand.

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 Air Flow Check of the Aft Sump Oil Supply Circuit
 Figure 206/TASK 72-00-00-991-319- 13 (SHEET 1)
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 Air Flow Check of the Aft Sump Oil Supply Circuit
 Figure 206/TASK 72-00-00-991-319- 23 (SHEET 2)
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 Air Flow Check of the Aft Sump Oil Supply Circuit
 Figure 206/TASK 72-00-00-991-319- 33 (SHEET 3)
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 (c) Install clamps (100) and (130) on the oil supply tube (20).

 (d) Lubricate threads of bolt (110) and (140) with graphite grease (Material No. CP2101).

 (e) Attach clamps (90) and (100) to the bracket (80) on flange T, with bolt (110).

 (f) Attach clamps (120) and (130) to the bracket (150) on flange S, with bolt (140).

 (g) Make sure that the oil tube (20) is not strained.

 (h) TORQUE the bolt (110) and (140) to to between 45 and 50 lbf.in

 (0.50 and 0.56 m.daN).

 (i) TORQUE the coupling nuts of tubes (20) and (30) to to between 270 and 300 lbf.in (3.05 and 3.39 m.daN).

 (j) Lubricate threads of bolt (60) and (190) with graphite grease (Material No. CP2101).

 (k) Install shields (70) and (170) on couplings of the oil tube (20), with clamps (50) and (180), bolts (60) and (190), and nuts (40) and (160).

 NOTE : The nut (40) must be installed on the turbine frame side.
____
 (l) TORQUE the nuts (40) and (160) to to between 45 and 50 lbf.in
 (0.50 and 0.56 m.daN).
 5. Close-up
________
 Subtask 72-00-00-410-149
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.

 (2) Close the thrust reverser doors (Ref. TASK 78-36-00-410-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR

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