TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 201 of 1393
FRAME REMOVAL
1.
Remove four locknuts (Figure 3, Item 2) and seat frame (Figure 3, Item 1) from adjusters (Figure 3, Item 3).
Discard locknuts.
2.
Remove two screws (Figure 3, Item 17), four locknuts (Figure 3, Item 7), washers (Figure 3, Item 5), adjusters
(Figure 3, Item 3), and washers (Figure 3, Item 15) from top frame (Figure 3, Item 14). Discard locknuts.
3.
Remove two nuts (Figure 3, Item 16), screws (Figure 3, Item 4), and shock absorber (Figure 3, Item 6) from
seat base (Figure 3, Item 13).
4.
Remove four nuts (Figure 3, Item 19), lockwashers (Figure 3, Item 20), screws (Figure 3, Item 11), and two
brackets (Figure 3, Item 21) from seat base (Figure 3, Item 13). Discard lockwashers.
5.
Remove spring (Figure 3, Item 18) from seat base (Figure 3, Item 13).
6.
Turn crank (Figure 3, Item 12) fully clockwise to remove tension from torque springs.
7.
Remove four nuts (Figure 3, Item 8), lockwashers (Figure 3, Item 9), and screws (Figure 3, Item 10) from seat
base (Figure 3, Item 13). Discard lockwashers.
8.
Remove top frame (Figure 3, Item 14) from seat base (Figure 3, Item 13).
TM 9-2320-272-23-4
0582
0582-6
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