DEMOLITION OF THE ROLL CRUSHER TO PREVENT ENEMY USE
When capture or abandonment of the roll crusher to an enemy is imminent, the unit commander
responsible must make the decision either to destroy the equipment or to render it inoperative. Based on this
decision, orders are issued which cover the desired extent of destruction. Whatever method of demolition is
employed, it is essential to destroy the same vital parts of all roll crushers and all corresponding repair parts.
84. Demolition to Render the Roll Crusher
a. Demolition by Mechanical Means. Use sledge hammers, crowbars, picks, axes, or any other heavy
tools which may be available to destroy the following:
Note: The following steps are the minimum require. meets for this method.
(1) Engine block and manifolds.
(2) Engine governor, fuel pump, and water pump.
(3) Electric motors
(4) Electric cables and wiring.
(5) Conveyor belts.
(6) The radiator and clutch housing.
(7) The electrical control boxes. (Open doors and smash inner components.)
b. Demolition by Misuse. Perform the following steps to render the roll crusher inoperative.
Note: The following steps are the minimum requirements for this method.
(1) Drain the radiator and engine crankcase. Pour sand in the engine crankcase.
(2) Disconnect the radiator fan and run the engine at full throttle.
85. Demolition by Explosives or Weapons Fire
a. Explosives. Place as many of the following charges shown in figures 63 and 64 as the situation permits
and detonate them simultaneously with detonating cord and suitable detonator.
Note: The charges in steps 1 and 2 are the minimum requirements for this method.
(1) One 1/2 lb charge on each cylinder head.
(2) One 1/2 lb charge between injection pump and engine block.
(3) One 1/2 lb charge on main (feed) conveyor. motor.
(4) One 1/2 lb charge on vibrating screen vibrator.
(5) One 1/2 lb charge on rotary elevator motor.
(6) One 1/2 lb charge on feeder motor.
(7) One 1/2 lb charge on return (under) conveyor motor.
(8) One 1/2 lb charge on the vibrating screen motor.
(9) One 1 lb charge on clutch housing.
(10) Six 1/2 lb charges between crusher rolls.
(11) Two 1/2 lb charges inside rotary elevator wheel.
b. Weapons Fire. Fire on the roll crusher with the heaviest practical weapons available.