Warning

Wear eye protection when installing springs or using striking instruments. You can be blinded if springs or flying chips hit you in the eye.

2. INSTALL NEW SPRING PIN.

a. Insert beveled end of new spring pin (6) in pin hole (5).

b. Tap spring pin (6) into pin hole (5) until spring pin (6) is flush with top of auto gun receiver (1).

Bevfitchett M242 25mm

3. INSTALL HELICAL SPRING AND SETSCREW. a. Insert helical spring (7) in handle pin (3).

b. Install setscrew (8) in handle pin (3). Torque setscrew (8) to 325 in.-lb ± 25 in.-lb (36.73 N-m ± 2.83 N-m).

Direct Current Motor Removal M242

4. CHECK OPERATION OF HANDLE PIN.

a. Push handle pin (1) to left. Handle pin should slide freely and should extend out of left side of auto gun receiver (2) from 1/4 in. to 1/2 in. (6.4 mm to 12.7 mm).

b. Release handle pin (1). It should spring back flush with right side of auto gun receiver (2).

c. If handle pin (1) does not function properly, repeat REMOVAL, INSPECTION, LUBRICATION, and INSTALLATION procedures.

1 df0627

1 df0627

5. INSTALL DIRECT CURRENT MOTOR (WP 0061 00).

6. INSTALL AUTOMATIC GUN FEEDER (WP 0026 00). END OF WORK PACKAGE

UNIT

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

COVER ASSEMBLY AND SEAR RETRACTOR ASSEMBLY REMOVAL/INSTALLATION REMOVAL, INSPECTION, LUBRICATION, INSTALLATION

INITIAL SETUP:

Tools and Special Tools

Artillery and turret mechanic's tool kit

(item 41, WP 0085 00) Goggles (item 19, WP 0085 00) Turret mechanic's supplemental tool kit (item 44, WP 0085 00)

Materials/Parts

Acid brush (item 4, WP 0116 00) Adhesive (item 1, WP 0116 00) Grease (item 11, WP 0116 00) Sealing compound primer (item 20, 0116 00)

References

WP 0008 00

Equipment Conditions

WP 002600 Automatic gun feeder removed

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