IDLERS. DESIGNED TO BE INSTALLED AT THE FRONT OF THE CATERPILLAR TRACK FRAME AND TO GUIDE THE TRACK LINK ASSEMBLY. THE MATERIAL IS OF CAST STEEL. THE IDLER IS USED SOLELY FOR THE UNDERCARRIAGE ON BULLDOZER EARTH MOVING EQUIPMENT.

GIR 1 TERMS OF HEADING 8431; PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE MACHINERY OF HEADINGS 8425 TO 8430 GIR 6 TERMS OF ONE-DASH SUBHEADING 84314; OF MACHINERY OF HEADING 8426, 8429 OR 8430 TERMS OF TWO-DASH S/H 8431 4200; OTHER OF CAST IRON OR CAST STEEL.