This standard specifies terminology and commercial specifications for self-propelled crawler-type and wheel-type tractor dozers (hereinafter referred to as tractor dozers) and their working equipment. This standard applies to tractor dozers, which are earthmoving machines specified in JIS A 8308.
JIS A 8420-1:2002 history
2002JIS A 8420-1:2002 Earth-moving machinery -- Tractor-dozers -- Part 1: Terminology and commercial specifications
1998JIS A 8420-1:1998 Earth-moving machinery -- Tractor -- Part 1: Terminology and commercial specifications
1994JIS A 8420:1994 Terminology standard form of specifications and testing methods of tractors