A-A-52533
2.2.1.8 Type II - Tilt trucks. Tilt style trucks shall have the rigid casters or load wheels located
widthwise across the center of the truck, and the two swivel casters to be located one at or near
each end of the longitudinal centerline of the truck.
2.2.1.9 Axle. The axle shall be one piece and shall be fabricated from steel. The axle with load
wheels shall be assembled to the axle brackets. The load wheels shall not extend beyond the
width of the deck. The axle shall not rotate with the wheel.
2.2.2 Push bars and racks.
2.2.2.1 Push bars. As specified in contract or order, the truck shall be supplied with one or two
push bars. The push bar shall be fabricated from iron or steel pipe or tubing. The push bar shall
be U-shaped. The top portion or handle end of the push bar shall be bent outward from the
vertical. Aluminum push bars may be supplied for Class 3 trucks provided they meet the strength
requirements in 2.2.3.4.
2.2.2.2 Racks. As specified in contract or order, the truck shall be supplied with one or two end
racks. The racks shall be fabricated from iron or steel pipe or tubing and shall be reinforced by at
least three equally spaced crossmembers. The outer frame of the racks shall be U-shaped. The
top portion or handle end of the rack shall be bent outward from the vertical. Aluminum racks
may be supplied for Class 3 trucks provided they meet the strength requirements in 2.2.3.4.
2.2.2.3 Bumper assembly. When specified in contract or order (see 5.1), the truck shall be
supplied with a non-marking rubber bumper assembly. The bumper assembly shall consist of strip
and corner bumpers with a reinforcing steel insert. The bumper assembly shall completely encircle
the truck frame, including the sockets. The uppermost surface of the bumper assembly shall be
below the top surface of the deck. The bumper assembly may be rigidly fastened directly to the
outside of the truck frame or indirectly by means of steel brackets using bolts, self-locking nuts
and flat washers. When protection from the handle is needed, donut bumpers shall be specified
for each leg (see 5.1).
2.2.2.4 Bearings. Bearing load capacity shall be sufficient to withstand the maximum design
loadings and performance requirements without exceeding the bearing manufacturer's
recommended rating. Bearings shall be provided with seals and shields to retain grease in bearing,
but to allow purging of used grease under pressure.
2.2.2.5 Lubrication fittings. Grease lube fittings shall conform to SAE J534 and shall be of the
threaded types. The casters and load wheels shall be grease packed with a lubricant containing a
rust inhibitor.
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