TM 9-2320-209-34-2-1 FRAME 7 SoldierA 1. Usingpry bar chainand blockofwood, push walkingbeam (1) down on subbase(2)and alineholesinwalkingbeam withholes SoldierB 2. GO TO FRAME insubbase. Make suregroove(3)in pivotshaftintosubbase 8 basepivotshaft(4)isfacingup. Drive and walkingbeam (1). 15-72