ASME B30.1:2004 pdf free download.Jacks.
(c) Auxiliary Load Points. Tests corresponding to paras. 1-1.1.3 (a)(2)(a) and (a)(2)(b) shall be performed for each auxiliary load point, using appropriate rated loads as defined in Section 1-0.2 (see lood rating, auxi liar,j).
(d) Static Design
(1) The computed stress in the structural components of the jack shall not exceed 50% of the yield strength of the material at the appropriate rated load for the components Any degradation of physical properties caused by welding handles or eyes to stressed hydraulic ram cylinders shall be taken into account in determining the yield strength.
(2) Each double-acting hydraulic jack shall be fitted with a relief valve on the retract circuit, which bleeds the smaller effective area of the jack. A flow-restricting component shall not be present between the relief valve and the smaller area.
(3) Carrying handles, if provided, shall be capable of statically supporting 200% of the weight of the jack. If a handle or eye is welded to a stressed hydraulic ram cylinder, welding shall conform to current industrial welding standards.
SECTION 1-1.2: MARKING AND INSTRUCTIONS
1-1.2.1 Marking
The rated load shall be legibly and durably marked in a prominent location. Mechanical jacks that have two ratings (sustaining and lifting) shall be so marked. The brand name or trademark, and hydraulic pressure or lever arm length and force, shall be legibly marked on the jack. Each hydraulic lack should be marked to mdicate that only recommended jack hydraulic fluid shall be used. Double-acting hydraulic jacks shall be marked to indicate the need for a relief valve, as indicated in para. 1-1.1 .3(bX2).
1-1.2.2 Integral Auxiliary Rated Load Marking
If integral auxiliary load-supporting points are provided and have different ratings from the major load support points, the manufacturer shall mark the jack with the rated load for such operation in accordance with para. 1-1.2.1.
1-1.2.3 Instructions
The manufacturer shall furnish printed operating, inspection, and maintenance instructions with each jack.
1-2.1.1 Inspection Classification
(a) Initial Inspection. Prior to initial use, all new,altered, modified, or repaired jacks shall be visuallyinspected by the user to verify compliance with theapplicable provisions of this volume.
(b) Inspection procedure for jacks in regular serviceis divided into two general classifications based uponthe intervals at which inspection should be performed.The intervals in turn are dependent upon the nature ofthe critical components of the jack and the degree ofwear, deterioration, or exposure to severe service. Thetwo general classifications are herein designated as fre-quent and periodic, with respective intervals betweeninspections as defined below.
(1) Frequent Inspection. This consists of visual exam-inations by the operator or other designated personnelwith records not required.
ASME B30.1:2004 pdf free download
