TM-9-2350-311-10

TM 9-2350-311-10

DO NOT chamber ammunition until immediately before firing. Ammunition left too long in a

hot weapon may result in hazardous conditions to personnel. Fire or remove ammunition

within five minutes of chambering. See Hot Cannon Tube Misfire/Checkfire Procedure,

paragraph 2-15.

Never insert primer in primer vent unless breechblock assembly is closed and locked. igni-

tion of propelling charge with breechblock not fully closed presents a critical hazard to crew.

Firing mechanism lever should be positioned before primer is inserted in primer vent. Don’t

force primer into primer chamber. Forcing primer could prematurely ignite powder charge

causing the howitzer to recoil resulting in serious injury to the crew.

If major work has been done by direct or general support, fire first round using the 50 foot

lanyard to prevent injury. In addition, each new issue, overhaul, or inspect and repair vehicle

received should be fired using the 50 foot lanyard for the first round.

The firing of a field artillery round without a fuze or with an unauthorized fuze is strictly pro-

hibited. Only authorized fuzes will be used with the authorized projectiles and propelling

charges to prevent death or injury from an inbore or premature explosion.

Stand clear of breech to avoid injury from cannon recoil.

All doors and hatches should be closed when firing the M203 family of charges to prevent

injury.

The ventilation blower switch must be turned to INTAKE during firing (para 2-17.3) to en-

sure adequate fresh air supply for personnel.

Refer to TM 9-1300-206, Ammunition and Explosives Standards, for correct procedures

involving the use of ammunition for storing and handling ammunition.

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