TM-9-2350-277-20-4 Unit Maintenance Manual Volume 4 M113A3 M577A3 M1064A3 M1068A3 M58 Download
Page 633 of 884
TM 9-2350-277-20-4 REPLACE/REPAIR RADIO OPERATOR’S SEAT (M1068A3 AND M58 ONLY) — Continued 0568 00 5. Install support plate (5), eight washers (8), four screws (6), and new locknuts (7) on tube (9). TIGHTEN SCREWS TO 80-90 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). NOTE If handle (4) is replaced, use latch (5) as a template, and drill 1/8 inch (3 mm) hole in handle for spring 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) and screws (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 Change 2