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.

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MIL-S-46777C

TABLE I. Weights and Dimensions.

Feature Requirement

Weights:

Mfgr's Rated GVWR Payload

Axle Weight Limit

(a) Single Axle Rear Suspension

(b) Multiple Axle Rear Suspension

(each axle)

Front Coupler Weight Limit

Rear Running Gear Weight Limit

Dimensions per SAE J1100:

Overall Length (OAL) L108

Overall Width (OAW) W103

Overall Height (OAH) H153

Ground Clearance (GC) H156

Angle of Departure

Max., Degrees H107

Interchange Dimensions per SAE J701 and J1100: Front Support Clearance,

Radius, (LWC) L498T-* Swing Radius, (SR) L497T-*

Kingpin Setting, (FP) L496T-* Level Coupler Plate

Height (FWH) H494T-*

Body Characteristics: Struck Capacity, SAE J741

Heaped Capacity, SAE J741

Length of Body, L598T* TBEA Hoist Classification,

Body Overhang Beyond Rear

Tires, L495T*

Per Specification Sheet. Per Specification Sheet.

Max. 18,000-lb. Max. 16,000-lb.

Max. 48% of GVWR. Max. 68% of GVWR.

Per Specification Sheet. Max. 98-in.

Max. 144-in.

Per Specification Sheet. Per Specification Sheet.

Min. 90-in. for Tandem Axle Tractor. Min. 72-in. for Single Axle Tractor. Max. 58-in. (Except where specified in

specification slash sheets.)

24 to 36-in. Range. (Except where

specified in specification slash sheets)

50 to 54-in. Range.

Per Specification Sheet. Per Specification Sheet. Per Specification Sheet. Per Specification Sheet.

Min. 18-in.

*Tentative and subject to change in SAE J1100.