TM 9-2350-277-20-4REPLACE/REPAIR RADIO OPERATOR’S SEAT (M981A3, M1068A3, AND M58 ONLY) —Continued0568 005. Install support plate (5), eight washers (8), four screws (6), and new locknuts (7) on tube (9). TIGHTEN SCREWS TO80-90 IN-LB (9.0–10.1 N m) TORQUE.6. Install rack (4), two washers (3), screws (2), and new locknuts (1) on support plate (5).7. If removed, install new bushing (1) in seat (2). Peen both ends snugly to seat and secure.8. Install two new long spring pins (3) in seat (2).NOTEIf handle (4) is replaced, use latch (5) as a template, and drill 1/8 inch (3 mm) hole in handle forspring pin (6).9. Install latch (5), spring (7), and handle (4) in seat (2). Secure with two new short spring pins (6).10. If locknut(s) (8) was removed, install new locknut(s) (8) in seat (2).11. Secure seat (2) to rails (9) with eight screws (10).12. Align backrest bracket (11) and two spacers (12) with two rails (9). Secure with two new lockwashers (13) andscrews (14).13. Align two clips (15) and bracket (11) with seat (2). Secure with six screws (16), washers (17), and new locknuts (18).14. Install seat cushion (19) on seat (2).15. Install back brace (20) in bracket (11).0568 00-5
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