R 408.15742 Special services equipment; tanks, pump units, and communications.

Rule 5742. (1) A service unit engine shall be equipped with an emergency shutdown device, the control of which shall be located at the operator's console. (2) A tank for flammable material shall be set so that if tanks leak, fluid will drain away from the well and equipment, or provisions shall be made to contain any leaked fluid. (3) Electric power to the pumping unit shall be de-energized and locked out such a distance from the wellhead as to eliminate potential electrical hazards during well servicing operations. In confined locations, overhead electric power to the pumping unit control panel shall be de-energized. (4) When operations are to be conducted around a pumping unit, the brake shall be set; if the pumping unit is stopped with counterweights in other than the down position, additional means shall be effected to prevent any movement of the counterweights or beam. (5) After well servicing operations are completed, precautions shall be taken before energizing the power source to determine that all personnel and equipment are clear of weight and beam movement. (6) Brake systems on all pumping units shall be maintained in safe working order. (7) All equipment shall be located so that equipment operators can see the employee in charge during operations so that alternate specific arrangements can be made to assure adequate communication. (8) Signals between supervisors and employees shall be agreed upon and fully understood before initiation of operations. Where more than 1 employer is involved in a drilling or service operation, coordination of activities and communication shall be accomplished so that the employees are protected at all times. (9) Communications equipment shall be in good working order before commencing operations. (10) Employees shall be out of the derrick and cellar and stand clear when a subsurface pump is being unseated or when the initial pull on tubing is made.