Note

Have DA Form 2408-4 (Weapon Record Data card) present for each weapon being inspected.

Table 1. Unit Preventive Maintenance Checks and Services for M242 Automatic Gun

BF = Before Firing AF = After Firing M = Monthly SA = Semi-annually AN = Annually

RDS = Round Dependent

Item No.

Interval

Item to be Inspected

Procedure

BF

AF

M

SA

AN

RDS

1

GUN ASSEMBLY

1.1

*

*

Gun Assembly

Clean/Inspect/Lubricate gun per TM 9-2350-252-10-2, TM 9-2350284-10-2, TM 9-2350-284-10-2-1, or TM 2350-294-10-2.

1.2

*

Gun Assembly

Perform Electrical Checkout per WP 0005 00.

2

BARREL ASSEMBLY

2.1

*

Barrel Assembly

Remove/Clean/Inspect/Lubricate/ Install per WP 0023 00.

2.2

*

5,000

Barrel Assembly

Inspect barrel bore erosion per WP 0023 00.

2.3

*

5,000

Barrel Assembly

Inspect barrel straightness per WP 0023 00.

2.4

*

*

Barrel Assembly

Check for muzzle brake tightness per WP 0023 00.

3

FEEDER ASSEMBLY

3.1

*

Feeder Assembly

Remove/Inspect/Install/Test per WP 0026 00.

3.2

*

*

Feeder Assembly

Perform Automatic Gun Feeder Manual Cycle Check WP 0007 00.

4

RECEIVER ASSEMBLY

4.1

*

Receiver Assembly

Inspect per WP 0026 00.

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