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.
Maintenance, repair and operations. Maintenance, repair and operations (MRO) involves fixing any sort of mechanical, plumbing, or electrical device should it become out of order or broken (known as repair, unscheduled, casualty or corrective maintenance).