BS ISO 12140:2013

1   Scope This International Standard specifies terms and definitions, establishes test procedures, and creates minimum performance requirements for telescopic mechanical screw-type jacks or hydraulic jacks mounted on agricultural implements as original equipment and/or replacement jacks. Furthermore, this International Standard defines terms, establishes test procedures, and creates minimum acceptance criteria for the use of telescopic mechanical screw-type jacks or hydraulic jacks mounted on agricultural implements as original equipment jacks or jacks fitted with a jack attachment mounts (both weld-on and removable). In addition, it specifies minimum markings and information for use to be provided by the jack manufacturer. These jacks are used specifically for:

       —  supporting the hitch points of towed agricultural implements during storage; 
   
   
     
       —  lifting and lowering of implement hitches to facilitate attaching to or disconnecting from an agricultural tractor or other agricultural machines; 
   
   
     
       —  levelling of machinery for stationary use. 
   
 


 
   NOTE  Drawbar jacks as part/component of a machine are also covered by [ISO 4254-1:2013](/catalog/ISO%204254-1%3A2013).