MIL-S-46777 Semitrailers, Dump, Commercial, General Specification ForThis specification covers various sizes of rear dump semitrailers. The dump semitrailers are operated by the truck-tractors hydraulic system, unless the self-contained engine driven hydraulic option is required.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49

MIL-S-46777C

TABLE III. Semitrailer specifications (continued).

VMRS No. Feature Requirements

Group 50

VMRS 51-002-001

VMRS 53-004-013

Accessories.

Hubodometer Assembly.

Furnish hubodometer of the driveless, tamperproof,

self-lubricating type for converting wheel revolutions into

accurate mileage readings.

Visual recording counter having mileage numbers in the upright

position.

Min. 7-digit type recording a min. 999,999.9-mi.

Corrosion-resistant housing sealed against moisture, oil, grease, dust, and climatic conditions. Hubodometer located on rear most curbside axle hub.

Chock - Wheel

When specified (see 6.2), furnish 4-ea. Wheel chock blocks and

either hangers or cradles, two assemblies on each side near the forward rear axle(s).

Chocks blocks per Figure 3 and, when selected, cradle per figure 4.

Captive chains of a length to place blocks both ahead of and behind the forward tires of the front axle without being taunt.

Hangers of the latched securment type under the dump body. Cradles installed on a vertical flat surface with the ears up and

the lower loop down having excess chain figure-eight-wound over the ears.