The steering brake of TY220 crawler bulldozer is hydraulically assisted, floating wet brake belt type. It includes the brake band, booster piston, connecting rod, floating rod, connecting rod and other parts installed on the outer drum of the steering clutch. Due to the superior performance of the floating mechanism, no matter whether the outer drum of the clutch rotates forward or reverse, it is very stable during braking and will not produce braking shock.
When the brake belt lining on the brake belt is worn, the gap between the brake belt and the outer drum becomes larger, and the brake springboard stroke increases. When the stroke increases to a certain limit, the brake becomes unreliable. Therefore, it is necessary to constantly adjust the brake band gap. The standard stroke and limit stroke of the brake pedal of the crawler bulldozer are shown in the table.
The method of adjusting the gap of the brake band: after removing the cover of the adjusting bolt, turn the adjusting bolt mouth to the right, tighten the brake band to hold the outer drum (tightening torque is about 90N·m), and then loosen the bolt (TY160 type) Loosen 15/6 turns, TY320 type loosen 11/6 turns), so that there is a 0.3mm standard gap between the brake band and the outer drum, and the adjustment is complete.
