(a)
Make sure that the cable inner member is in the fully retracted position at the MEC end.
(b)
If it is not done, loosen the nose cap from the conduit cap.
(c)
Carefully install the threaded part of the conduit cap into the MEC slotted bracket.
CAUTION:_______DO NOT TWIST THE FEEDBACK CABLE. USE TWO WRENCHES WHEN YOU TIGHTEN THE NOSE CAP; ONE WRENCH ON THE NOSE CAP AND ONE ON THE CONDUIT CAP.
(d)
Install the nose cap on the conduit cap.
1) Tighten the nose cap to 180-200 pound-inches
(20.3-22.6 Newton meters).
2) Install the lockwire.
NOTE: Do not connect the VBV feedback cable to the MEC
____ feedback arm at this time. The cable will be connected when you do the VBV Feedback Cable Travel Check procedure (AMM 71-00-00/501, Test No. 6).
S 434-054-C00
(19)
Put the support tube into position.
S 434-021-C00
(20)
Install the two bolts, washers and nuts and the clampshell and clamp that attach the support tube to the MEC and the transfer gearbox (Fig. 402, Sheet 1).
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737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 434-022-C00
(21)
Put the electrical cable into position.
S 434-023-C00
(22)
Install the six screws, washers, clamps and nuts that attach the electrical cable to the MEC and the transfer gearbox (Fig. 402, Sheet 1):
(a) Tighten the clamps and the clampshell.
S 434-056-C00
(23)
Install the fuel control box and the throttle push-pull cables on the MEC (AMM 76-11-08/401).
S 014-015-C00
(24)
Remove the protective caps on the MEC.
S 434-016-C00
(25)
Connect these electrical connectors (Fig. 402):
(a)
VBV reset solenoid connector, D3012, installed on the top side of the MEC.
(b)
The idle reset solenoid connector, D3016, installed on the
lower inboard side of the MEC.
(c)
The power lever angle (PLA) position connector (blue cable),
installed on the lower aft side of the MEC.
S 414-013-C00
(26)
Install the connector bracket (to the aft half of the connector, D2876) to the connector bracket plate on the MEC with the two (non-epoxied) allen screws.
S 414-012-C00
(27)
Connect the TLA electrical connector, D2876, to the connector bracket.
(28)
Fill the engine oil system (AMM 12-13-11/301).
S 654-058-C00
S 414-061-C00
WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS WHEN YOU CLOSE THE THRUST REVERSER, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(29)
Close the thrust reverser (AMM 78-31-00/201).
(30)
Close the left fan cowl panels (AMM 71-11-02/201).
S 414-062-C00
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 704-059-C00
(31) Do Test No. 6 - MEC Trim (AMM 71-00-00/501).
NOTE: A VSV Dynamic Rig (AMM 75-31-00/501) should be done after
____ the replacement of high time MEC on a high time engine because of the difference in the MEC fuel schedules. The high time MEC usually has a richer fuel schedule than a new or overhauled MEC. The VSV dynamic rig makes acceleration characteristics better by optimizing the HP compressor efficiency and helping to adjust for a lower nominal fuel-flow schedule.
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