Technical data

TM 9-1005-319-23&P 0005

0005-11

Table 1. Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 7. Inspect for worn, broken, or missing automatic sear (33).

Replace automatic sear (WP 0021).

Step 8. Inspect for weak or broken automatic sear spring (32).

Replace automatic sear (33) (WP 0021).

Step 9. Determine if long leg (31) of automatic sear spring (32) is incorrectly assembled in receiver.

Remove automatic sear (33) and install correctly (WP 0021).

Step 10. (M16A2, M16A4, and M4 only) Determine if burst cam (12) or burst cam spring (11) is

frozen or improperly assembled.

Disassemble, inspect, clean, lubricate, or replace as required (WP 0021).

1 v s 0 1 8

3 0

2 9

3 4

3 3

3 2

3 1

1 1

1 2

M 1 6 A 2 /

M 1 6 A 4 / M 4

M 1 6 A 3 / M 4 A 1

2 9

3 0

2 9

Figure 15. Disconnector, Automatic Sear, and Burst Cam Inspection.

Step 11. Check for short recoil.

See Malfunction 10.