TM 9-2320-365-34-219-2. INITIAL MACHINE GUN RING KIT INSTALLATION/REMOVAL (CONT)(21) Position lower platform (27) on top platform (8) with twoquick-release pins (28).(22) Place lower platform (27) in raised position with legs (24)fully forward and support brackets (23) flush with cabfloor (9).(23) Mark outline of support bracket (23).(24) Cut floor mat (13) around outline of support bracket (23).NOTERemove all rubber material under floor mat tohave metal to metal contact between clinchnuts and cab floor.(25) Mark and center punch location of four support bracketholes (29) on cab floor (9).(26) Fold lower platform (27) back to rest on top platform (8).(27) Drill four 10 mm holes (29) in cab floor (9).(28) Install four clinch nuts (14) in holes (29).(29) Rotate lower platform (27) back in raised position.(30) Position two brackets (23) on cab floor (9) with fourwashers (30) and screws (31).(30.1) Tighten four screws (31) to 71-89 lb-in. (8-10 N·m).19-6 Change 1
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