Chapter 1. STATE MINE INSPECTOR

Materials that can create hazards if accidentally liberated from their container shall be stored in a manner that minimizes the dangers. Historical Note Former Rule 10:01.

Hazardous materials shall be stored in containers of the type approved for such use by recognized agencies. Such containers shall be labeled appropriately. Historical Note Former Rule 10:02.

Compressed and liquid gas cylinders shall be secured in a safe manner. Historical Note Former Rule 10:03.

Valves on compressed gas cylinders shall be protected by covers when being transported or stored, and by a safe location when the cylinders are in use. Historical Note Former Rule 10:04.

Men shall stay clear of suspended loads. Historical Note Former Rule 10:05.

Operator-carrying overhead cranes shall be provided with: 1. Bumpers at the end of each rail. 2. Automatic switches to halt uptravel of the blocks before they strike the hoist. 3. Effective audible warning signals within easy reach of the operator. 4. A means to lock out the disc…

See A.R.S. §§ 27-121 through 27-127 inclusive, 27-141, and 27-461 through 27-468 inclusive. Historical Note Former Rule Section 1.

The construction of any headframes and the material used therein shall be sufficiently strong and durable to assure its withstanding any working stress put upon it. Historical Note Former Rule 11:01.

All headframes shall be so designed that they will withstand a greater load than the calculated breaking strength of all hoisting attachments. Historical Note Former Rule 11:02.

Any headframes which are constructed of flammable material must be provided with adequate fire protection. Historical Note Former Rule 11:03.

The ladder or stairway leading to the sheave wheel platform shall have a handrail or other guarding as needed and the platform at the sheave wheel shall be protected with guard rails and toe boards. Historical Note Former Rule 11:04.

A. The manager shall keep, or cause to be kept, at the mine, a book called the Rope Record Book in which shall be recorded the following information on friction hoist ropes: 1. A history of the rope, giving the date on which the rope was first put on. 2. Dates of shortening. 3. D…

A. Hoisting rope installed on a friction hoist shall have a factor of safety of not less than that determined from the following formula: F. of S. = 8.0 - .0005d, where “d” is the maximum length of rope suspended below the head sheave in feet. B. For friction hoists, the factor o…

A. No hoisting rope on a friction hoist shall be used in a shaft or winze of a mine where, in any part of the rope: 1. The existing strength has decreased to less than 90% of the original strength of the rope. 2. The extension of a test piece has decreased to less than 60% of its…

The drum diameter of every friction hoist shall not be less than 80 times the diameter of the rope in use. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

Friction hoist drives, controls, and brakes shall be so designed and maintained that slippage of the rope on the drum will not occur under normal operating conditions. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

Friction rope treads shall be inspected regularly and maintained in good condition. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

Friction hoist installations shall be equipped with tapered guides or other approved devices which shall be installed above and below the limits of regular travel of the conveyance and arranged so as to brake and stop an overwind or overtravel occurring in the event of failure of…

A device shall be provided which will initiate emergency stopping to bring the drum to rest in the event of occurrence of slip between the hoisting rope or ropes and the hoist drum, such as might occur with a conveyance or counterweight jammed in the shaft or caught at the end of…

A device shall be provided which will initiate emergency stopping action in the event of abnormal movement of the tail rope loop when a tail rope is used. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

Means shall be provided on a friction hoist to adjust the depth indicator and protective device on the hoist to the position of the conveyance in the shaft. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

Water and spillage in a shaft sump in mine shall be kept at such a level at all times that: 1. Tail ropes have clear passage. 2. Guide and rubbing rope connections and tension devices are clear. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

On friction hoist installations, after every six months of service, the positions of the hoisting rope within the clamps shall be changed, if practicable, or that portion of the rope within the clamps shall be thoroughly cleaned and examined. Historical Note Adopted effective Apr…

Every friction hoist shall be accompanied by a certificate from the manufacturer, or an independent person approved by the Mine Inspector, giving the maximum rated unbalanced load and the maximum rated suspended load of the hoist, and the hoist shall not be located beyond the max…

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. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

The maximum material allowed on the conveyance of a friction hoist shall be determined from the lesser of the following calculations: 1. Maximum allowable suspended load on the hoist, less the weight of the hoisting ropes, less the weight of tail ropes, less the weight of the con…

All compartments of shafts used for hoisting or lowering men shall be inspected at least once every two weeks and a record of such inspection shall be kept. Historical Note Former Rule 11:21.

In shaft sinking, adequate protection from falling ground must be provided. The timber, steel, roof bolts, concrete or any device used for restraining ground must be kept a reasonable distance from the bottom of the shaft. Historical Note Former Rule 11:22.

Historical Note Former Rule 11:23; Repealed effective August 18, 1980 (Supp. 80-4).

In shaft sinking where a platform is suspended by wire ropes, such ropes shall have an approved rate for the suspended load. Historical Note Former Rule 11:24.

Where rope guides are used in shafts, they shall be of locked coil construction. Historical Note Former Rule 11:25.

Shaft inspection and repair work in vertical shafts shall be performed from substantial platforms equipped with bonnets or equivalent over-head protection. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

In shaft sinking operations where a crane is used, the allowable depth shall be 125 feet from shaft collar. Historical Note Adopted effective April 7, 1976 (Supp. 76-2).

All mine hoists shall consist of one of the following drives: 1. V-belt driven and not less than four V-belts with a designed safety factor of 10. 2. Gear driven. Fiber gears shall not be used. 3. Friction driven. 4. Direct drive. There shall be no chain-driven hoists used for un…