(7)
OHM 20-20-02, Overhaul Manual
C. Access
(1)
Location Zones
500 Left Nacelle
600 Right Nacelle
(2)
Access Panels
5725 Access Door Strut - Left Nacelle
5825 Access Door Strut - Right Nacelle
D. Procedure
S 222-013-B00
(1)
Do an examination for wear on the strut fitting for the aft engine mount (Fig. 202).
S 202-006-B00
(2)
Do an examination of the vibration isolator for the aft engine mount.
NOTE: The Vendor Component Maintenance Manual has the damage and
____ limits repair information for the vibration isolator and cone bolt.
S 232-007-B00
(3)
Do a general penetrant (flourescent dye) inspection of the thread runout area on the cone bolt (OHM 20-20-02).
(4)
If you find damage, replace or repair the isolator assembly.
S 352-008-B00
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54-42-11
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
B-B
BUSHING
Aft Engine Mount Wear Limits Figure 202 (Sheet 1)
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54-42-11
ALL ú ú B01 Page 207 ú Mar 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
MAXIMUM 0.030 INCREASE IN ID PERMITTED FOR OVERSIZE BUSHING
Aft Engine Mount Wear Limits
Figure 202 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
FORWARD ENGINE MOUNT - MAINTENANCE PRACTICES
____________________________________________
1. General_______
A. There are three tasks in this procedure:
(1)
The first task removes the forward engine mount.
(2)
The second task installs the forward engine mount.
(3)
The third task is an inspection of the forward engine mounts.
B. The forward engine mount stays with the strut when you remove the engine. Therefore, you must remove the engine to get access to the engine mount.
C. This procedure gives the wear limits for the crossbeam, fitting, and bushing interfaces.
D. You can use this procedure for the left or right sides of the engine.
TASK 54-42-12-002-001-B00
2. Forward Engine Mount Removal____________________________
A. General
(1)
This procedure contains two topics:
(a)
The first topic removes the crossbeam assembly from the strut.
(b)
ON AIRPLANES WITH THE VIBRATION ISOLATORS; the second topic removes the vibration isolators from the crossbeam assembly.
(2)
ON AIRPLANES WITH THE VIBRATION ISOLATORS; the cone bolt nut, retainers and the bond jumper are removed when the engine is removed.
(3)
ON AIRPLANES WITH THE VIBRATION ISOLATORS; there are two vibration isolators on the crossbeam for each engine. You can use this procedure to remove the isolators on the forward engine mount.
B. References
(1) 71-00-02/401, Power Plant
C. Access
(1) Location Zones
500 Left Nacelle
600 Right Nacelle
D. Remove the Crossbeam Assembly 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 NACELLES/PYLONS(44)
