(b)  
11B25, FIRE DETECTION APU 2

 S 035-067
 (11)
 Remove the electrical connectors from the test box.

 S 435-025

 (12)
 Connect the electrical connectors to the detector elements (D1908 to TS5066, D1914 to TS5062).

 S 035-068

 (13)
 Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:

 (a)  
11B24, FIRE DETECTION APU 1

 (b)  
11B25, FIRE DETECTION APU 2

 S 415-069
 (14) Close the APU access doors.
 G. Put the Airplane Back to Its Usual Condition
 S 865-070
 (1)  Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel:
 (a)  11J25, FIRE DET ALTN PWR APU
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757 MAINTENANCE MANUAL
 (2)  S 865-071Remove the DO-NOT-CLOSE tag and close circuit breaker on the P6 panel: (a) 6G1, FIRE EXT APU
 (3)  S 865-072Remove electrical power if it is not necessary.

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757 MAINTENANCE MANUAL
 APU FIRE DETECTOR ELEMENT - REMOVAL/INSTALLATION
________________________________________________
 1.  General_______
 A.  Two dual-element APU fire detectors are located in the APU compartment, above and below the APU. The removal/installation procedure is the same for each detector element.
 TASK 26-15-02-024-030
 2.  Remove the APU Fire Detector Element (Fig. 401)____________________________________
 A.  Equipment
 (1)  
AIRPLANES WITH GRAVINER FIRE DETECTORS;
 Bonding Meter - AVTRON, T477W

 (2)  
Torque Wrench - commercially available (For
 torque ranges, Ref Fig. 401)

 B. Parts ~.............................................................................. | AMM | | AIPC | ................. NOMENCLATURE ............................ | FIG | ITEM | | SUBJECT | FIG| ITEM | ................................................................................ | 401 | 2 | Bolt | 26-15-02| 01 | 50,105 | | | 3 | Washer | | | 55,110 | | | 4 | Clamp | | | 70,125 | | | 7 | Nut | | | 60,115 | | | 8 | Liner | | | 75,130, | | | | | | | 135 | | | 9 | Detector Element | | | 45,100 | | | 10 | Support Assy - Tube | | | 40,95 | | | 11 | Pin Assy - Locking | | | 42,43, | | | | | | | 97 | 2.......….......…...................................…..........…....…..........1
 (1)  AIRPLANES WITH GRAVINER FIRE DETECTORS;
 Refer to the table that follows: ~.............................................................................. | AMM | | AIPC | ................. NOMENCLATURE ............................ | FIG | ITEM | | SUBJECT | FIG| ITEM | ................................................................................ | 401 | 1 | Detector Element | 26-15-02| 01 | 195,200 | | | 2 | Washer - Tab | | | 165,170 | | | 3 | Washer - Sealing Copper | | | 160 | | | 4 | Bushing | | | 175,180 | | | 5 | Clip - P | | | 185,190 | 2.......….......…...................................…..........…....…..........1
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757 MAINTENANCE MANUAL
UPPER FIRE DETECTOR
LOWER FIRE DETECTOR 
1.0 INCH MAXIMUM (2 LOCATIONS)  QUICK-RELEASE CLAMP SEE B 
DETECTOR RESPONDER SEE A  3. WASHER 2. BOLT APU FIRE DETECTOR (4 LOCATIONS) (4 LOCATIONS) 
1. DETECTOR RESPONDER  5. RESPONDER 4. CLAMP (2 LOCATIONS) HEX FLAT  8. LINER (2 LOCATIONS)  9. DETECTOR (2 LOCATIONS) ELEMENT 
　
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