Specifications

TM 05539-IN
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
INCLUDING LUBRICATION INSTRUCTIONS - CONTINUED 0008 00
0008 00-6
INTERMEDIATE PREVENTIVE MAINTENANCE CHECKS AND SERVICES - CONTINUED
END OF WORK PACKAGE
Table 1. Intermediate Preventive Maintenance Checks and Services (PMCS) Quarterly Schedule - Continued.
ITEM INSPECTED PROCEDURE/CONDITIONS
Bolt Assembly - Continued
Firing Pin Assembly 1. Using the bolt disassembly tool, disassemble the bolt (WP 0013 00) and remove the
firing pin assembly from the bolt.
2. Inspect the firing pin for cleanliness and proper lubrication.
CAUTION
DO NOT use grease on the firing pin spring as this could cause misfires
in cold weather.
3. Ensure firing pin is straight and has a smooth, round tip. Refer to WP 0014 00.
4. Lightly coat threads of bolt plug with grease and then reassemble the firing pin
assembly into the bolt.
5. Gage firing pin protrusion using the firing pin protrusion gage. Refer to WP 0013 00.
6. Ensure assembly is screwed all the way into the bolt and that the cocking leg lines
up with the small notch on the back of the bolt.
Safety
Safety 1. Check the safety for proper functioning.
2. With the bolt cocked and weapon on “SAFE”, the rifle should not fire. If any
problems exist, evacuate to higher level of maintenance for repairs. No repairs or
adjustments are authorized at the Organizational Maintenance level.
Bipod Assembly
Bipod 1. Inspect bipod assembly for function and cleanliness.
2. Legs should extend, hold, and retract properly.
3. Bipod should pivot both left and right and be able to lock in any position with the
pod lock. No repairs are authorized for the bipod assembly. If damaged, replace the
entire bipod assembly.
Function Check
1. Reassemble the remaining weapon system components, if any.
2. Perform the function check outlined in WP 0020 00. If the weapon does not function
properly and the cause cannot be determined by using the troubleshooting chart,
evacuate to higher level of maintenance for repairs.