A-A-52533
2.2.1 Frame and deck.
2.2.1.1 Class 1 - Steel Platform. The frame and deck may be fabricated from one steel sheet; cut,
formed and welded at the corners to form a one piece construction deck and channel frame; or,
the frame and deck may consist of a one piece steel sheet welded atop a welded frame assembly.
The frame and deck shall be a level rigid unit. The frame corners shall not have sharp corners.
2.2.1.2 Class 2 - Wood Platform (Steel Bound). The frame assembly, consisting of an outer
frame and reinforcing members, shall be of welded steel construction to form a level rigid unit.
The frame corners shall not have sharp corners. The deck shall be fabricated from boards of
hardwood which have been sanded, sealed and finished on all wood surfaces in accordance with
best commercial practices. Joint spacings between boards shall not exceed 3 mm (0.125 inch).
Where required, boards shall be cut and shaped to accommodate push bar/rack legs. The deck
boards shall be removable for replacement. The top surface of the deck boards shall be flush with
top of outer frame or top surface of steel deck band if used. The board ends shall be fully
protected by the outer frame.
2.2.1.3 Class 3 - Aluminum Platform. The frame and deck, consisting of an outer frame,
reinforcing members, and a tread pattern deck, shall be fabricated from aluminum material. The
frame and deck shall be of welded construction to form a level rigid unit. The frame corners shall
be rounded.
2.2.1.4 Sockets. Sockets for push bar/rack legs shall be permanently affixed, one each, at or near
each corner of the deck. The sockets may be located outside or inside of the channel frame. The
sockets shall be designed to provide a stop and support for the push bar/rack legs. The socket
hole shall provide for a snug fit for the push bar/rack legs and a set screw to secure the legs may
be provided.
2.2.1.5 Caster supports and axle brackets. Caster supports and axle brackets shall be rigidly
attached to the underside of the frame assembly.
2.2.1.6 Running gear. Running gear shall consist of two swivel casters, and two rigid casters or
two axle-mounted load wheels. Swivel and rigid casters shall be bolted to the caster supports.
Load wheels shall be mounted on the axle near the ends. Casters and load wheels shall be
manufacturer's standard components unless otherwise specified in contract or order (see 5.1).
2.2.1.7 Type I - Non-tilt trucks. Non-tilt style trucks shall have running gear assembled to the
underside of the frame assembly such that the load wheels or rigid casters will carry two-thirds of
the rated load plus or minus 11.3 kg (25 pounds).
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