Section R. 408.15736 - Weight indicatorsRule 5736.
(1) A weight indicator shall be installed and used on all operating drilling and well servicing rigs. It shall be so constructed, installed, and maintained so as to register an indication of plus 5% at maximum hook loading of the suspended load.(2) The weight indicator shall be checked monthly for calibration by comparing its reading with the calculated drill string or tubing string weight, with adjustment made as necessary.(3) The weight indicator shall be mounted so the gauge is easily visible to the operator standing at the brake position.(4) Where an employee would be exposed to a hazard from a weight indicator, or a component of a weight indicator, installed on the deadline, the indicator or component shall be secured with a separate safety line or chain.Mich. Admin. Code R. 408.15736