TM-9-2350-311-10

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 579 of 775

TM 9-2350-311-10

Change 4

5-47

5-4

PREPARATION FOR FIRING — CONTINUED

e.

Special Preparation of the M483A1 and M864 Projectiles for Use in the Self-Registration Mode

— Continued

2

Remove the expulsion charge assembly (3 or 4) by grasping and firmly pulling the pull–wire (2)

or tab (5). Set expulsion charge assembly aside for disposition. Visually inspect the fuze well (6)

for loose grains of propellant or other foreign material. Remove any loose material.

WARNING

When screwing the projectile spotting charge onto rear of the M577 series fuze or

M762 series fuze, ensure that shoulder of projectile spotting charge is seated

squarely against shoulder of fuze. An improperly seated charge could cause a

malfunction.

CAUTION

When assembling projectile spotting charge to fuze, exercise care to avoid

damaging threads. If binding occurs, consider charge unserviceable and report it for

disposition. If binding has occurred, reinspect fuze to assure it is still serviceable.

3

Obtain an M577 series fuze or an M762 series fuze (7) and a projectile spotting charge (8).

4

If firing the M483A1 or M864 projectile in the self–registration mode, screw the projectile

spotting charge (8) handtight on the M577 series fuze or the M762 fuze (7) (left–hand thread).

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