MIL-R-29385 Roller, Motorized, Compactor, Vibratory, Articulated, Diesel Engine Driven

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MIL-R-29385A(MC)

3.3.2.3 Cooling system. The liquid cooling system consisting of radia-

tor, air shroud, fan-water pump and thermostat shall be of adequate

capacity to permit operation under continuous operating conditions at an

ambient temperature of -25�F to +110�F. The above is exclusive of supple-

mentary radiator shroud and fan cooling capacity necessary for hydraulic

cooling should the engine cooling system also be used for that purpose.

3.3.2.4 Air cleaner. The engine, shall have a dry type filter, the

capacity of which shall be in accordance with the engine manufacturer's

recommendation. A visual warning device showing when service should be

performed shall be provided.

3.3.2.5 Exhaust. The engine exhaust shall be under hood, or otherwise

protected, to preclude water entering the engine during high wind rain

storms. A rain cap or hat is not considered adquate under these

conditions.

3.3.2.6 Starting aid. The engine shall be provided with a pressurized

container 20-ounce capacity measured shot ether cold weather starting

aid. The control for the starting aid shall be mounted on the instrument

control panel and shall be operable with a single mittened hand.

* 3.3.2.7 Ignition switch. The engine shall be provided with an on-off

switch conforming to MS39060 Type III to operate the gages and start the

engine in lieu of the key type ignition normally provided.

3.3.3 Frame. The frame shall be constructed of structural steel

sections or steel plates with members joined using one of the arc welding

processes. Frame shall be reinforced to prevent distortion by utilizing

cross braces, gussets, or a combination of both. Frame shall be hinged

to facilitate steering. Hinge shall be located at or near the center

of the roller and on the longitudinal axis of the frame. Frame shall

be mounted on two drive wheels on rear and a single vibrating drum on

front.

* 3.3.4 Propulsion system. Power from the engine shall be transmitted

to the drive wheels by a hydrostatic drive or a selective gear transmission

having not less than two speed ranges and a nonslip type differential, if

sliding gear transmission is provided. The drum/frame modules provided

shall also be equipped with hyrostatic drive. The roller shall be equipped

with a single forward/reverse speed control which shall provide infinite

speed selection without affecting the vibrations per minute of the vibration

system. A separate lever shall be supplied for gear selection for the

selective gear transmission? if provided. The propulsion system shall provide

for dynamic braking. Equipped with the smooth drum, the roller shall operate

at any speed from 0.5 mi/h to 8 mi/h while traveling on a level paved

surface.