MIL-C-0052980C(ME)
3.22.2 Wheels and hubs.
The wheels and hubs for class 2
compressor shall be of the drop center type to accommodate the tires
specified in 3.22.3.
The wheels and hubs shall be furnished with
roller bearings and seals.
3.22.3 Tires and tu bes
The tires for the class 2 compressor
shall conform to ZZ-T-410, size 4.10.6.
The tires shall be 2-ply
rating.
Tubes shall conform to ZZ-I-550.
3.22.4 Tilt requ irement.
When operated at rated speed and
pressure, the compressor shall deliver rated capacity when tilted 15
degrees from the horizontal in any plane.
3.23 Class 3, ca ster-mounted .
The compressor unit and power unit
.
shall be mounted on a steel base attached to a horizontal-type,
air-receiver tank. The air-receiver tank shall be constructed as
specified in 3.21.1, except the tank shall be mounted on four
casters conforming to FF-C-88.
Two type II (swivel) casters shall
be mounted on the compressor end, and two type I (non-swivel)
casters shall be mounted on the engine end.
3.23.1 Caster installation.
The casters shall be mounted so that
the compressor shall not overturn when pushed or pulled about on a
horizontal surface or when tilted 15 degrees from the horizontal in
any direction. The casters shall be attached to steel mounts on the
bottom side of the receiver tank and located near each end of the
tank.
The distance between the centerline of the casters (measured
side to side) shall be not less than 6 inches greater than the
maximum diameter of the air-receiver.
3.23.2 Handle and storage rack.
The class 3 compressor shall be
equipped with a combination handle and storage rack mounted on the
compressor end.
The handle and storage rack shall be removable, and
similar to that shown on figure 2 (see 6.9) .
The handle shall be
positioned not less than 30 inches and not more than 40 inches from
the floor.
The storage rack shall hold the air hose specified
in 3.9.
The storage rack shall be located so that the hose when
stored on the rack, shall not contact any component of the
compressor subject to high temperature.
3.24 Class 4, trailer mounted.
The class 4 air compressor shall
be mounted on a trailer as specified in MIL-T-46791, type II,
size A.
The commercial construction equipment (CCE) trailer chassis
shall be equipped with a military compatible 12 and 24 volt system
as specified. The engine compressor unit and receiver shall each be
directly assembled on a common base.
3.24.1 Cover.
A canvas cover for storage and protection during
towing shall be provided.
The materials, stitching, thread, and
seam of the canvas cover shall conform to MIL-C-13489.
The canvas
cover shall be three dimensional to enclose the engine and
compressor and shall be fastened by means of a line drawn through
grommets in the seam or hem.
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