1005-01-454-0396

Replace FSS harness (WP 0047 00). If harness is not removable, replace FSS (WP 0045 00).

BOLT POSITION INDICATOR

Replace feeder assembly (WP 0026 00) and send defective feeder assembly to Direct Support Maintenance for repair of index drive cover assembly._

BOLT POSITION INDICATOR

1005 454 0396
CAMPLATE NOTCH
M242 Bushmaster Bolt Position Indicator
FEED SELECT SOLENOID HARNESS
Hand Crank Actuator
P2
M242 Bushmaster Bolt Position Indicator
FEED SELECT SOLENOID HARNESS

ELECTRICAL CHECKOUT - Continued

While performing resistance check between pins P1-K & P1-R of the FSS 14 pin connector, have helper look through bolt position indicator glass and hand crank gun slowly until bolt position indicator enters the EXTRACT zone and the actuator roller falls into the camplate notch. Did a reading of less than 0.5 ohms occur when the roller fell into the camplate notch?_

Disconnect FSS harness J2 from index drive cover assembly (WP 0047 00). Check for continuity between pins P1-R & J2-A and P1-K & J2-D. Is there continuity?_

YES,

Replace feeder assembly (WP 0026 00) and send defective feeder assembly to Direct Support Maintenance for repair of index drive cover assembly._

Replace FSS harness (WP 0047 00). If harness is not removable, replace FSS (WP 0045 00).

Firing Solenoid For Crow System Nsn

PLUG

ELECTRICAL SEAR SOLENOID

AUTO GUN RECEIVER (BOTTOM VIEW)

SEAR RELEASE LINK (PUSH Jff TO ACTUATE ELECTRICAL 3 SEAR SOLENOID) if

MOTOR/TURRET

PLUG

ELECTRICAL SEAR SOLENOID

AUTO GUN RECEIVER (BOTTOM VIEW)

SEAR RELEASE LINK (PUSH Jff TO ACTUATE ELECTRICAL 3 SEAR SOLENOID) if

MOTOR/TURRET

M242 Bolt Position Indicator
CAMPLATE NOTCH
FEED SELECT SOLENOID HARNESS
P2
1005 454 0396
FEED SELECT SOLENOID HARNESS

ELECTRICAL CHECKOUT - Continued

M242 Feeder

Enhanced automatic gun feeder electrical checkout complete._

M242 Automatic

UNIT

M242 25-MM AUTOMATIC GUN (NSN 1005-01-086-1400) M242 25-MM ENHANCED AUTOMATIC GUN (NSN 1005-01-454-0396)

AUTOMATIC GUN FEEDER MANUAL CYCLE CHECK

INITIAL SETUP:

Tools and Special Tools References

Artillery and turret mechanic's tool kit (item TM 9-2350-252-10-2

Dummy cartridge with link (item 6, TM 9-2350-284-10-2-1

WP 0085 00) TM 9-2350-294-10-2

Turret mechanic's supplemental tool kit

(item 44, WP 0085 00) Equipment Conditions

WP 0023 00 Barrel assembly removed WP 0026 00 Automatic gun feeder removed

ELECTRICAL FEED

ELECTRICAL FEED

Alkar Automatic Pistol

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