72-35-00
ALL ú ú C01 Page 807 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
IGV 1ST-STAGE 2ND-STAGE 3RD-STAGE
LEVER ARM
SEE A ADJUSTABLE LINK
ACTUATION
RING CONNECTING LINK
(4 LOCATIONS PER SIDE)
SEE B
ACTUATION RING LEFT VSV ACTUATOR
VSV BELLCRANK ASSEMBLY FWD GMM-1077272-03-B
A
A
CONNECTING
A
BOLT
LINK
(4 LOCATIONS) STRAIGHT PIN BOLT (4 LOCATIONS)
HEADED PIN
D-HEAD BOLT
NUT STRAIGHT PIN
CONNECTING LINK A
A D-HEAD BOLT
HEADED PIN
NUT
LEFT SIDE RIGHT SIDE
CONNECTING LINK INSTALLATION (EXAMPLE)
B
VSV Actuation Ring Connecting Link Installation (Example) Figure 803 (Sheet 1)
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72-35-00
ALL ú ú C01 Page 808 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
RING HOLES (WITH BUSHINGS)
(EXAMPLE)
A-A
NOTE:____ LEFT SIDE CONNECTING LINK SHOWN,
RIGHT SIDE SIMILAR.
TO RING END OF PIN ONLY GMM-1097601-00-B
VSV Actuation Ring Connecting Link Installation (Example) Figure 803 (Sheet 2)
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72-35-00
ALL ú ú C01 Page 809 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 028-051-C00
CAUTION:_______DO NOT REMOVE MORE THAN ONE BOLT AND NUT AT A TIME. DAMAGE TO
THE CASE OR THE INTERNAL ENGINE COMPONENTS CAN OCCUR.
(3) Remove the bolt and nut.
(a)
Do not turn the alignment bolts.
(b)
Refer to Fig. 802 for the alignment bolt location.
NOTE: You can use a plastic drift to hit the bolt out of the
____
flange.
G. Install the Horizontal Flange Bolt and Nut on the Front Stator Case for the HPC (Fig. 802).
S 648-019-C00
(1) Apply graphite grease to the bolt threads.
(a) Fay the surfaces of the bolt, nut and flanges.
S 428-020-C00
(2) Install the bolt with the bolt head pointed at the top of the
engine.
(a) If you remove the alignment bolt, engage the bolt with a mallet.
S 428-021-C00
(3) While you hold the bolt, install the nut.
(a)
Make sure the run-on torque of the nut is 7.0-30.0 pound-inches (0.8-3.4 Newton meters).
(b)
Replace the nut if it does not make its limit.
(c)
Tighten the nut (refer to the torque shown on Fig. 802).
S 218-022-C00
(4)
Make sure that two to three threads of the horizontal flange bolt
comes out of the nut.
S 228-023-C00
(5)
Make sure the opening in the flange is less than 0.003 inch
(0.08 mm).
S 418-024-C00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______
THRUST REVERSER. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY
TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(6)
Close the right and left thrust reverser (AMM 78-31-00/201).
(7)
Close the right and left fan cowl panel (AMM 71-11-02/201).
S 418-025-C00
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