4-61. Lifting Arm
This task covers:
General mechanic's tool kit (item 01, Appendix B)
Semitrailer parked on level ground.
Brush (item 15, Appendix E)
Grease (item 5, Appendix E)
Personnel Required: Two
Lifting arms are heavy. To prevent injury to personnel or damage to equipment, use an assistant to
help support lifting arms during removal/installation.
XM1063 has six lifting arms. M129A4 has four lifting arms. All lifting arms are removed/replaced
in the same manner.
1. Have assistant support bracket (1). Remove two bolts (2), four clamps (3) and two nuts (4).
2. Remove shaft (5) and bracket (1).
Bracket will drop after pin is removed. To avoid injury to personnel or damage to equipment, make
sure lifting arm is supported.
3. Pull out pin with chain assembly (6).