TM 10-3930-659-20 13-5. BOOM LOCK REPLACEMENT. This task covers: a. Removal b. Installation Initial Setup: Tools/Test Equipment: • General mechanic's tool kit (Item 44.  Appendix F a. REMOVAL Remove  nut  (1),  screw  (3),  and  boom  lock  (2) from frame (4). b. INSTALLATION I Install boom lock (2) on frame (4) with screw (3) and nut (1) TA706759 13-11/(13-12 Blank)