TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 11-2 CANNONEER’S SEAT ASSEMBLIES (M109A2/M109A3) — CONTINUED b. Disassembly 1 Remove two self-locking nuts (4) and two screws (5) from two clamps (6). Discard self-locking nuts. 2 Remove two clamps (6) and two safety belts with plates (7). NOTE Step 3 refers to left seat assembly and step 4 refers to right seat assembly. 3 Remove 48 screws (8) from 8 short straps (9) and frame (10). 4 Remove 60 screws (8) from 10 short straps (9) and frame (10). 5 Remove 18 screws (11) from 3 long straps (12) and frame (10). 6 Remove six grommets (13) and six grommet washers (14) from short and long straps (9 and 12). Discard grommets and grommet washers. 7 Remove two snap rings (15) and two pins (16) from left and right support brackets (17 and 18) and frame (10). 8 Remove four nuts (19), four screws (20), and four Iockwashers (21 ) from support bracket connector (22). Discard Iockwashers. 9 Remove right support bracket (18) and left support bracket (17) from frame (10). c. Assembly 1 Install right support bracket (18) and left support bracket (17) onto frame (1 O). 2 Install four new Iockwashers (21 ), four screws (20), and four nuts(19) in support bracket connector (22). 3 Install two pins (16) and two snap rings (15) in left and right support brackets (17 and 18) and frame (10). 4 Install six new grommet washers (14) and six new grommets (13) on long straps (12) and short straps (9). 5 Install 3 long straps (12) and 18 screws (11) on each seat assembly. NOTE Step 6 applies to left seat assembly and step 7 applies to right seat assembly. 6 Install 8 short straps (9) and 48 screws (8). 7 Install 10 short straps (9) and 60 screws (8). 8 Install two safety belts with plates (7) and two clamps (6). 9 Install two screws (5) and two new self-locking nuts (4) in two clamps (6). 11-12