Preventive maintenance. Maintenance procedures

(a) A preventive maintenance program based on the hoisting equipment manufacturer's recommendations shall be established. (b) Dated maintenance records shall be made available to the Department of Public Safety. (c) Before adjustments and repairs are made on hoisting equipment, the following precautions shall be taken, unless they are not applicable: (1) Hoisting equipment shall be placed where it will cause the least interference with other equipment or operations in the area; (2) All controls shall be placed in the off position and all operating features shall be secured from inadvertent motion by brakes, pawls or other means; (3) Starting mechanisms shall be rendered inoperative; (4) The power plant shall be stopped or disconnected at the power takeoff; (5) The boom shall be lowered to the ground, if possible, or otherwise secured against dropping; (6) The load block or attachment shall be lowered to the ground or otherwise secured against dropping; and (7) Hydraulic oil pressure from all hydraulic circuits shall be relieved before loosening or removing hydraulic components. (d) "Warning" or "Out of order" signs shall be placed on equipment controls. (e) After adjustments and repairs have been made, the hoisting equipment shall not be returned to service until all guards have been reinstalled and trapped air has been removed from the hydraulic system, safety devices are reactivated and maintenance equipment has been removed.