Technical data

TM 9-1005-319-23&P 0005
0005-5
Table 1. Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 5. Inspect for bent gas tube (8).
a. Adjust to original configuration by bending gas tube in area of handguards.
b. Replace gas tube and check alignment (WP 0015).
1 v s 0 1 0
8
Figure 6. Gas Tube.
Step 6. Inspect for weak or broken action spring (3). RIFLE ONLY: Free length should be 11 3/4
in. (29.85 cm) minimum to 13 1/2 in. (34.29 cm) maximum. CARBINE ONLY: Free length
should be 10 1/16 in. (25.56 cm) minimum to 11 1/4 in. (28.58 cm) maximum.
Replace action spring (WP 0021).
1 v s 0 0 7
3
Figure 7. Action Spring Inspection.
Step 7. Check for short recoil.
See Malfunction 10.
5. FAILURE TO FIRE.
Step 1. Inspect for carbon buildup in firing pin recess inside bolt assembly.
Remove cartridge extractor and clean recess with pipe cleaner (WP 0045, item 11); see
TM 9-1005-319-10.