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TB20 MAINTENANCE MANUAL 24 COMMUNICATIONS TB20飞机维护手册 电源(21)

时间:2011-10-31 12:26来源:蓝天飞行翻译 作者:航空
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PRESTOLITE overvoltage relay and voltage regulator
Figure 601
 
Check of LAMAR regulation system
Figure 602
Check of LAMAR overvoltage system
Figure 603
 
  1 - Advisory panel
2 - Low voltage detection printed circuit
3 - Adjustable resistor
4 - Fuse panel assembly

 
 

 
Check of low voltage detection system
Figure 604
ABAA
Validity : S / N 1 - 822, 850 - 887, 889 - 947 24-30-00Page 607
(CA) OCT 02
 
PAGE INTENTIONALLY LEFT BLANK
ABAA
Validity : S / N 1 - 822, 850 - 887, 889 - 947 24-30-00 Page 608
(CA) OCT 02
 
DC GENERATION
INSPECTION / CHECK
1. CHECK OF REGULATION SYSTEM (Figure 601)
A. Tools and consumable materials
NOTE 1 : The voltmeter included in the engine monitoring cluster must not be used as a calibration reference for maintenance, use a precision voltmeter.
NOTE 2 : This procedure describes a check performed with a voltmeter of an engine monitoring cluster composed of sectors of different colors. Post-MOD. 182, the digital indicator displays an accurate value. To know the equivalence with the sectors - refer to 24-30-00.
- Voltmeter
B. Procedure
Pre-MOD. 151
1) Remove engine cowling 121 - refer to 71-10-01 and tilt inspection door 212R - refer to 06-30-00 or remove inspection door 211 R if installed - refer to 06-30-00.
Post-MOD. 151 with voltage regulator on firewall on cabin side
1) Remove inspection door 211R - refer to 06-30-00.
Post-MOD. 151 with voltage regulator on L.H. panel strip
1) Remove the blanking cap from the L.H. panel strip.
All
2) Make sure the bonding of the voltage regulator grounding wire is correct - refer to 20-00-12. Check without a test set
3) Connect a voltmeter to the mains (if necessary, use the cigar lighter).
Check with a test set
3) Remove the engine monitoring cluster without disconnecting it.
4) Connect the test set connector to the engine monitoring cluster test connector. Set the test set selector to "Alinn.1 (Power supply 1) : 28 V" or "Alim.2 (Power supply 2) : 28 V".
5) Turn on the test set. All
WARNING : TO REACH THE VOLTAGE REGULATOR WHEN THE ENGINE IS RUNNING, MOVE ALONG THE WINGS AND THE FUSELAGE WHILE REMAINING CONSTANTLY AND PHYSICALLY IN CONTACT WITH THE WINGS AND THE FUSELAGE.
 
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