MM2600, Lesson 1
Figure 1-4. Ladder Slide.
The ladder slide is easy to build from 2 x 4 or 4 x 4 dunnage, small tree trunks, or other available
material. It may be used to unload boxes from truck to stack, from railroad car to truck, or from railroad
car to ground. The most practical length for a ladder slide is 10 feet, and it should be narrow enough to
accommodate the boxes being handled. The slide should be well supported by horses or sand-filled
boxes, with grease or wax applied to its surface. The slide makes a good improvised conveyor.
Powered Materials Handling Equipment
Powered by gasoline, diesel fuel, or electricity, this equipment commonly includes cranes and forklifts.
of the cranes now being used
in ammunition units include the wrecker crane, M543: the
5-ton crane; and the 20-ton crane.
The wrecker crane (figure 1-5) was designed primarily as a recovery vehicle, but it has proved very
missile and nuclear special weapons containers. It is mounted on a vehicle chassis, is engine
powered, is hydraulically operated, and has a telescoping extendable boom 10 to 18 feet long. The
crane can rotate 360 degrees with the boom elevated 45 degrees. The chassis has four outriggers that
can be lowered to support the weight of heavy loads. Using the outriggers takes all the weight off the
wheels and the suspension system. With the outriggers in place and minimum boom extension (10
feet), the maximum lift capacity is 10,000 pounds.