TM 5-4220-225-14
(3)
Replace (lower breech ring retainer).  (figure 5-3)
(a)
Remove 20 screws (1), three jocking harness brackets (2), lower breech ring retainer (3), and neck dam (4)
(or drysuit) from breech ring (5).
(b)
Install neck dam (4) (or drysuit) on breech ring (5) and secure with new lower breech ring retainer (3), three
jocking  harness  brackets  (2),  and  20  screws  (1).    Torque  screws  to  18-20  in.-lb  (2.1-2.3  Nm)  using  a
staggered sequence.
Figure 5-3.  Lower Breech Ring Retainer, Replace.
5-9