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TB20 MAINTENANCE MANUAL 34 导航 TB20飞机维护手册 2(89)

时间:2011-11-09 16:09来源:蓝天飞行翻译 作者:航空
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ACAC
Validity : GA 56 - Post-MOD. 151 Page 204
34-57-02 „1, NOV 01
 
I E023 / E92 / E93 RELAY BOX
MAINTENANCE PRACTICES
NOTE : This procedure is applicable to L.H. and R.H. installations. Information specific to R.H. installation are given in square brackets.
 SERVICING
None
 REMOVAL / INSTALLATION - RELAY BOX (Figure 201)
A. Tools and consumable materials
Stainless steel bonding brush
Alodine (TB 13-002)
Petrolatum (TB 04-012)
Abrasive cloth (TB 05-916C)
Varnish (TB 07-906)
Cleaning agent (TB 11-912)
- Clean lintfree cloths
B. Removal of the relay box
 Make sure that the main switch-breaker is open.
 Remove inspection door 211L [211R].
 Disconnect connector (3) from relay box (1).
 Remove bolts (8) and washers (7).
 Remove relay box (1).
C. Installation of the relay box
 Make sure that the main switch-breaker is open.
 On front table (2), if the areas to be bonded (6) are alodine-coated, clean the areas with a cloth moistened with cleaning agent (TB 11-912) and wipe with a dry cloth. Moderately coat the alodine-coated surface with petrolatum (TB 04-012).
 If the areas to be bonded (6) are not alodine-coated, perform the bonding of the areas - refer to 20-00-12.
 On relay box (1), clean and, if necessary, recondition the areas (5) facing those bonded on the front table.
 If grounding lug (4) has to be reconnected, clean and, if necessary, recondition the contact area on the relay box.
 Position and secure the relay box with bolts (8) and washers (7). NOTE : If installed, secure lug (4) with bolt (8) and washer (7).
AMA
Validity : GPS with HSI Page 201
34 57 05 (BA) NOV 01
 
 Carefully clean excess petrolatum (TB 04-012) with a clean cloth slightly moistened with cleaning agent (TB 11-912).
 Coat the relay box attachment hardware with varnish (TB 07-906) beyond the alodine-coated area.
 Connect connector (3).
 Make sure all the tools and materials are removed and the work area is clean and free from debris.
 Close inspection door 211L [211R].
 Perform an operational test of the GPS system.
AAAA
Validity : GPS with HSI 202
34 57 05 (BA) Page FEB 00
 

  1 - Relay box
2 - Front table
3 - Connector
4 - Lug
5 - Areas to be bonded
6 - Areas to be bonded
7 - Washer
8 - Bolt
E023 / E92 / E93 relay box - Removal / Installation
Figure 201
 
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FLIGHT MANAGEMENT COMPUTING
DESCRIPTION AND OPERATION
 GENERAL
This section describes the systems which combine navigation data to compute or manage the aircraft geographical position or to determine its theoretical flight path.
 
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