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747-400
MAINTENANCE MANUAL
6. REAR COVER PLATE
5. ROTATION DIRECTIONS
4. WORMSHAFT
MUST BE AWAY FROM THE TOOL
In-Axle Mount Installation Tool Figure 403 (Sheet 1)
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A 747-400 MAINTENANCE MANUAL
7. WINDOWS
FULLY EXPANDED
7. WINDOWS
FULLY COMPRESSED
In-Axle Mount Installation Tool
Figure 403 (Sheet 2)
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747-400
MAINTENANCE MANUAL
In Axle Mount Installation
Figure 404
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A 747-400 MAINTENANCE MANUAL
(2) S 584-012Lift the nose landing gear axle on a jack to make sure all the weight is off the nose landing gear (AMM 07-11-03/201).
(3) S 014-013Remove the end caps from the axle (if they are installed). (a) Keep the cross bolts.
(4) S 164-014Clean the inner diameter of the axle: (a) Thoroughly clean grease or other contamination from the inside of the axle. (b) Remove all the finish from the inner diameter of the axle. (c) Clean the area between 13 and 17 inches in from the end of the axle. (d) Make sure that the areas between the 11 and the 1 o'clock and the 5 and 7 o'clock positions are very clean.
(5) S 164-062Clean the new in-axle mount rings:
NOTE:____ Go to next step if mount rings are being reused.
(a) Remove grease, corrosion, or dirt from the unpainted surfaces.
CAUTION:_______ DO NOT USE METAL TOOLS OR ABRASIVE MATERIALS TO CLEAN THE FRICTION PADS. THE FRICTION PADS ARE EASILY DAMAGED.
(b) (c) Remove the pink protective coating from the friction pads (1, Fig. 402).Clean the surfaces of the friction pads with freon and a cotton swab.
(6) S 424-069Install new friction pads on reused mounting rings: (a) Clean friction pad mounting areas on mount ring.
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747-400 MAINTENANCE MANUAL
(b)
Install friction pads using new flat head screws.
(c)
Apply a layer of BMS 10-20H, Type II, Class A primer to screw heads.
S 014-015
(7)
Push the sensor cables back into the axle, out of the way.
S 414-054
(8)
Put the in-axle mount rings on the installation tool (Fig. 403):
CAUTION: DO NOT TURN THE WORMSHAFT AFTER THE PEG TOUCHES THE STOP.
_______
TOO MUCH FORCE CAN CAUSE DAMAGE.
(a) Turn the wormshaft in the EXPAND direction (counterclockwise) until the peg (8) touches the stop (9) (Fig. 403, Sheet 2, View A). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 指示/记录系统 1(135)
