29 CFR 1926.305 - Jacks
(1) The manufacturer's rated capacity shall be legibly marked on all jacks and shall not be exceeded.
(c) Blocking. When it is necessary to provide a firm foundation, the base of the jack shall be blocked or cribbed. Where there is a possibility of slippage of the metal cap of the jack, a wood block shall be placed between the cap and the load.
(ii) Hydraulic jacks exposed to freezing temperatures shall be supplied with an adequate antifreeze liquid.
(iv) Each jack shall be thoroughly inspected at times which depend upon the service conditions. Inspections shall be not less frequent than the following:
(a) For constant or intermittent use at one locality, once every 6 months,
(b) For jacks sent out of shop for special work, when sent out and when returned,
(c) For a jack subjected to abnormal load or shock, immediately before and immediately thereafter.
(vi) Jacks which are out of order shall be tagged accordingly, and shall not be used until repairs are made.
[44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6, 1979, as amended at 55 FR 42328, Oct. 18, 1990; 58 FR 35176, June 30, 1993]
Title 29 published on 2014-07-01
no entries appear in the Federal Register after this date.