Page 10 May 05/2009
 

Table 8:
Title  Standard Overhaul Practices Manual Chapter 
Fluid System Fitting Torque Values  20-50-00 
Bolt and Nut Installation  20-50-01 
Installation of Safety Devices  20-50-02 
Bearing Installation and Retention  20-50-03 
Installation of Permanent Drill Passage Pin and Plug  20-50-04 
Application of Aluminum Foil and Other Markers  20-50-05 
Installation of O-Rings and Teflon Seals  20-50-06 
Lubrication  20-50-07 
Application of Dry Lubricant  20-50-08 
Installation of Protective Grommets  20-50-09 
Application of Stencils, Insignia, Silk Screen, Part  20-50-10 
Numbering and Identification Markings 
Application of Aerodynamic Smoothing Sealant  20-50-11 
Application of Adhesives  20-50-12 
Application of Weather, Fuel Oil, Solvent and Heat Resistant  20-50-13 
Protective Coatings 
Cleaners  20-60-01 
Finishing Materials  20-60-02 
Lubricants  20-60-03 
Miscellaneous Materials  20-60-04 

B.  Lubrication
(1)  
Lubricate O-ring packings with petrolatum prior to installation unless specified otherwise.

(2)
Apply grease or anti-seize compound to splines as specified.

C.  Floating Clamps
(1)
Floating clamps are utilized to establish adequate clearance between tubing, hoses, and wire bundles to dampen vibration and prevent chafing.

(2)  
Illustrations which show clamping for wire bundles, tubing and hoses show floating clamp installations in approximate clamping locations.

(3)  
Actual clamp locations may be adjusted from those illustrated and additional clamps may be used to provide required clearances. A minimum clearance of 0.5 inch is desirable however, 0.2 inch is permissible where 0.5 inch cannot be obtained.

D.  Electrical Harness
(1)  
Position electrical harness between connectors to provide equal distribution of support loading on clamps. Maintain sufficient slack at connectors to prevent preloading the connection. No wire ties should be under clamps.

(2)
Wrap wire bundles with tape at each clamping position to provide optimum clamping condition and prevent abrasion of wiring during service.

INTRODUCTION

Page 11 May 05/2009
 

(a)  
When attaching a wire bundle on the fan case, wrap the bundle under the clamp with Scotch 70 tape.

(b)  
When attaching a wire bundle on the core case with TA025041( ) clamps, wrap the bundle under the clamp with Permacel P421 tape or optionally P440 tape. Wrap the wire bundle a minimum of 2 times.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 動力裝置安裝手冊 Powerplant Buildup Manual(11)