TM 9-3990-260-14&P
a.
Removal.
NOTE
This procedure shows replacement of one twistlock. Replacement is the same for all four
twistlocks.
(1) Remove lock nut (1) from handle bolt (2). Remove the handle bolt (2) and handle (3) from
twistlock (4). Discard lock nut.
(2) Remove lock nut (1) from shear pin bolt (5). Remove the shear pin bolt (5) and shear pin (6).
Discard lock nut.
(3) Remove the twistlock (4) by pushing it up and out of the twistlock housing (7).
b.
Installation.
NOTE
Ensure the replacement twistlock is the correct type. There are two types of twistlocks.
One type is used with the right front and left rear twistlocks, the other with the left front
and right rear twistlocks.
(1)
Insert twistlock (4) into twistlock housing (7).
(2)
Install shear pin (6), shear pin bolt (5), and lock nut (1). Tighten lock nut (1).
(3)
Install handle (3), handle bolt (2), and lock nut (1). Tighten lock nut (1).
c.
Follow-on Maintenance.
Lubricate grease fitting in accordance with Appendix J.
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