A-frame Assembly and Bail Bar. The bail bar (1) on the A-frame assembly (2) of the M3A1
CROP is used as a lifting point for the M3Al CROP. The bail bar (1) couples with the LHS hook arm to lift and
pull the M3A1 CROP onto the PLS truck. The entire A-frame assembly (2) can be lowered onto the M3A1 CROP
deck to prepare the M3A1 CROP for stacking. When folded, the A-frame assembly (2) fits inside the rails (3) of
the M3A1 CROP above it, thus allowing them to be stacked vertically.
Rails. The rails (3), located on the bottom of the M3Al CROP, have locking plates (7) on each
rail which mate with dinlocks on the PLS truck and trailer to secure the M3A1 CROP for road operations.
A-frame Assembly Hinge. Two tapered, threaded, front pins (4) with hex nut, flat washer,
lock washer, and two straight, threaded, rear pins (5) (hidden from view) with hex nuts, flat washer and lock washers
are provided as an integral part of the A-frame assembly (2). The pins (4 and 5) are used to secure the A-frame
assem- bly (2) in the upright position for normal use and allow the A-frame assembly (2) to be folded in the
horizontal position for stacking.