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Minnesota Administrative Rules

5207.0600 LOCKOUT DEVICES.

Subpart 1.

Electrical power disconnect.

Any main electrical power disconnect means which controls a source of power or material flow shall be locked out with a lockout device whenever employees are maintaining, cleaning, adjusting, or servicing machinery or equipment, if the disconnect is not in clear sight of the employee. A "Do Not Start" tag as described in Code of Federal Regulations, title 29, section 1910.145(f)(4), shall be affixed to all operating controls.

Subp. 2.

Pneumatic and hydraulic lines.

The pressure shall be eliminated from any pneumatic and hydraulic lines that activate a mechanism or machine, and the valve holding back the activating substance shall be locked out before an employee works on that mechanism or machine.

Subp. 3.

Spring tension mechanisms.

Mechanisms under spring tension or compression shall be blocked, clamped, secured in position, or the compression or tension totally relieved before being worked on by an employee.

Subp. 4.

Suspended mechanisms.

Suspended mechanisms or parts that normally cycle through a lower position shall be lowered to the lowest position, and shall be clamped, blocked, or otherwise secured in position before being worked on by an employee.

Subp. 5.

Individual lockouts.

Where more than one employee is engaged in working on machinery or equipment, each employee shall affix the employee's individual lockout device or lock to the disconnect switch or power supply.

Subp. 6.

Exemption.

Utility companies, when working on lines and equipment, will be exempt from this standard but must comply with the requirements of Code of Federal Regulations, title 29, section 1926.950(d).

Statutory Authority:

MS s 182.655

History:

12 SR 634; 21 SR 1897

Published Electronically:

June 11, 2008

700 State Office Building, 100 Rev. Dr. Martin Luther King Jr. Blvd., St. Paul, MN 55155 ♦ Phone: (651) 296-2868 ♦ TTY: 1-800-627-3529 ♦ Fax: (651) 296-0569