No alterations designed to increase the hoisting capacity shall be made to a friction hoist unless approval is given by its manufacturers or an independent person approved by the Mine Inspector.
Ariz. Admin. Code § R11-1-1119
No alterations designed to increase the hoisting capacity shall be made to a friction hoist unless approval is given by its manufacturers or an independent person approved by the Mine Inspector.
Ariz. Admin. Code § R11-1-1119