S M O K E G R E N A D E L A U N C H E R ( S ) M A L F U N C T I O N

SUSPENSION LOCKOUT SCHEMATIC (M741A1 ONLY)

S M O K E G R E N A D E L A U N C H E R ( S ) M A L F U N C T I O N 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 S M O K E G R E N A D E L A U N C H E R ( S ) M A L F U N C T I O N INITIAL SETUP Tools: General Mechanics Tool Kit (Item 30, App D) Digital Multimeter (Item 43, App D) Personnel Required: Unit Mechanic Helper (H) Inferences see your -10 Equipment Conditions: Engine stopped/shutdown (see your -10) Carrier blocked (see your -10) Trim vane lowered (see your -10) Power plant front access door open (see your -10) Harness 12313235 removed from launcher arming/firing unit 1. Does either launcher operate properly? GO TO PAGE 3-199 I 1. 2. 3. 4. 5. Remove harness launcher plug (1) from failing launcher. Remove harness circuit 7 (2) and 799 (3) plugs from harness (right launcher) or harness (left launcher) jacks (4). Measure resistance between harness launcher plug (1) pin A (5) and circuit 7 plug (2). Measure resistance between harness launcher plug (1) pin C (6) and circuit 799 plug (3). Does multimeter read 0 ohms for both measure- ments? 1. Replace harness for left or right grenade launcher (page 27-3). 2. Verify no faults found. 3-196

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