T U R R E T P O W E R / P R O X I M I T Y S W I T C H T R O U B L E S H O O T I N G ( M 7 4 1 A 1 O N L Y) ...CONT.

T U R R E T P O W E R / P R O X I M I T Y S W I T C H T R O U B L E S H O O T I N G ( M 7 4 1 A 1 O N L Y)

T U R R E T P O W E R / P R O X I M I T Y S W I T C H T R O U B L E S H O O T I N G ( M 7 4 1 A 1 O N L Y) ... CONT.

TM-9-2350-261-20-1 Carrier Personnel Full Tracked Armored M113A2 2350-01-068-4077 Carrier Command Post Light Tracked M577A2 2350-01-068-4089 Manual
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TM 9-2350-261-20-1 1. Measure resistance on terminal board TB2 (1) be- tween terminals 3 (2) and 4 (3). Record measure- ment. 2. Open drivers hatch and repeat measurement. 3. Does multimeter read 0 ohms with hatch closed and infinity with hatch open? YES 1. Install a jumper wire on terminal board TB1 (1) between terminals 2 (2) and 4 (3). 2. Measure resistance between wiring harness 11677930 plug (4) pin K (5) and S (6). 3. Does multimeter read 0 ohms? 1. Replace driver’s hatch in- terlock switch I (page 17-19). 2. Verify no faults found. 1. Repair/replace wiring harness 11677930 I (page 14-3). 2. Verify no faults found. I 1. Hull wiring and switches are OK. 2. Faulty turret wiring. Notify your supervisor. I 3-169

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