[Code of Federal Regulations]
[Title 29, Volume 8]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 29CFR1926.305]

[Page 231]
 
                             TITLE 29--LABOR
 
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT 
                                OF LABOR
 
PART 1926_SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION--Table of Contents
 
                     Subpart I_Tools_Hand and Power
 
Sec. 1926.305  Jacks--lever and ratchet, screw, and hydraulic.

    (a) General requirements. (1) The manufacturer's rated capacity 
shall be legibly marked on all jacks and shall not be exceeded.
    (2) All jacks shall have a positive stop to prevent overtravel.
    (b) [Reserved]
    (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.
    (d)(1) Operation and maintenance. (i) After the load has been 
raised, it shall be cribbed, blocked, or otherwise secured at once.
    (ii) Hydraulic jacks exposed to freezing temperatures shall be 
supplied with an adequate antifreeze liquid.
    (iii) All jacks shall be properly lubricated at regular intervals.
    (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.
    (v) Repair or replacement parts shall be examined for possible 
defects.
    (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]