S 434-009-C00
(3)
Install the longer bolts in the bottom end (11 o'clock position or 1 o'clock position, as applicable) of the support with the longest bolt in the forward hole (bushing end).
S 434-010-C00
(4)
Tighten the top bolts (2 locations) to 960-1180 pound-inches (108-133 newton meters).
(a)
Safety the forward bolt of the right mount with the forward bolt of the left mount with a lockwire.
(b)
Safety the aft bolt of the right mount with the aft bolt of the left mount with a lockwire.
S 434-011-C00
(5)
Tighten the bottom bolts (2 locations) to 1320-1620 pound-inches (149-183 newton meters).
(a)
Safety the bolts with a lockwire.
S 424-012-C00
(6) Install the power plant (Ref 71-00-02/401).
TASK 71-21-01-004-013-C00
4. Remove the Cone Bolt (Fig. 401)____________________
A. References
(1)
71-00-02/401, Power Plant
B.
Access
(1)
Location Zone
506 Engine No. 1 - Fan Frame
606 Engine No. 2 - Fan Frame
C.
Procedure
(1)
Remove the power plant (Ref 71-00-02/401).
(2)
Remove the retainer bolt, washer, and retainer.
S 024-014-C00
S 034-015-C00
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-21-01
ALL ú ú C02 Page 404 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 034-016-C00
(3)
Remove the nut, shoulder bolt, and washers (2 locations).
S 034-017-C00
(4)
Remove the snubber and cone bolt.
TASK 71-21-01-404-018-C00
5. Install the Cone Bolt (Fig. 401)_____________________
A. References
(1)
71-00-02/401, Power Plant
B.
Access
(1)
Location Zone
506 Engine No. 1 - Fan Frame
606 Engine No. 2 - Fan Frame
C.
Procedure
S 994-019-C00
CAUTION: MAKE SURE THAT THE CORRECT CONE BOLTS ARE INSTALLED ON THE TWO
_______ FORWARD ENGINE MOUNTS. THE CONE BOLTS FOR AIRPLANES WITH VIBRATION ISOLATORS ARE DIFFERENT SIZES THAN THE CONE BOLTS FOR AIRPLANES WITHOUT VIBRATION ISOLATORS. INCORRECT CONE BOLT INSTALLATION CAN CAUSE DAMAGE TO THE CONE BOLT AND THE STRUT CROSSBEAM.
(1) Refer to the table below to make sure that the cone bolt is compatible with the strut crossbeam configuration (with or without vibration isolators):
~........................................................................
| ENGINE/STRUT VIBRATION ISOLATION COMPATIBILITY REQUIREMENTS |
..........................................................................
| STRUT CROSSBEAM | FORWARD ENGINE MOUNT |
| CONFIGURATION | CONE BOLT P/N 310A1041( ) |
| .........................................
| | LEFT | RIGHT |
..........................................................................
| WITH VIBRATION ISOLATORS | -5 | -5 |
| WITHOUT VIBRATION ISOLATORS | -1 | -2 or -7 |
2................................….................….....................1
S 434-020-C00
(2)
Install the cone bolt with the snubber in the fan frame support.
(3)
Align the hole in the cone bolt with the holes in the support.
S 824-021-C00
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-21-01
ALL ú ú C02 Page 405 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(4) S 434-022-C00Install the shoulder bolt, washers (2 locations), and nut with the larger washer below the bolt head and the bolt head pointed forward.
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