標準號：IS 12224-1987
發(fā)布日期：1988/3/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：This standard specifies test procedures for determining following hydraulic performance characteristics of agricultural tractors:a) The maximum static vertical force which can be exerted by the hydraulic lift at the lower hitch points throughout their full range of movement;b) The maximum static vertical force which can be exerted by the hydraulic lift, at a point 610 mm to the rear of the hitch points on a frame attached to the three-point linkage, throughout its full range of movement;c) The hydraulic pump and relief valve performance; andd) The ability of the lifting system to maintain the load in the lifted position without hydraulic power.