§ 29.147. Shafting, bearings and hangers.
(a) Shafting should be kept in alignment, free from rust and excessive oil or grease.
(b) When explosives, explosive dusts, flammable vapors or flammable liquids are present, the hazard of static sparks from shafting should be carefully considered. Static electricity may be removed by means of a spring copper brush in contact with the shafting. This brush should be well grounded through No. 12 insulated copper wire. Other effective methods may be used.
(c) Bearings should be kept in alignment and properly adjusted.
(d) Hangers should be inspected to make certain that all supporting bolts and screws are tight and that supports of hanger boxes are properly adjusted.
Cross References This section cited in 34 Pa. Code § 29.141 (relating to purpose).
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