unstable soil. Earth material that, because of its nature or the influence of related conditions, cannot be depended upon to remain in place without extra support, such as would be furnished by a system of shoring.
There are many areas to focus on when performing forklift maintenance. The gas engine or electric motor, the hydraulic system and the tires are frequently involved in specialized forklift maintenance programs. In many locations, it is required that all forklift maintenance and repair be completed by a trained and certified mechanic, such as those certified with the Occupational Safety and Health Administration or OSHA in the United States.
Jefferson Lab considers forklift attachments and lifting devices to be material handling equipment. A forklift attachment is a modification or addition to a forklift that affects its capacity, stability, or safe operation. Lifting devices are used for lifting heavy loads, and when maintained for use with a forklift, do not affect the capacity or safe operation of the truck.