California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 4 - Construction Safety Orders
Article 14 - Construction Hoists
Section 1604.27 - Maintenance

(a) Lubrication.

All parts of the machinery and equipment requiring lubrication shall be lubricated at regular intervals as recommended by the manufacturer, and a log maintained.

(b) Making Safety Devices Inoperative.

No person shall at any time make any required safety device or electrical protective device inoperative, except where necessary during tests, inspections, and maintenance. Immediately upon completion of such tests, inspections, and maintenance, such devices shall be restored to their normal operating condition in conformance with the applicable requirements of this Standard.