770 and 772 Off-Highway Truck Hydraulic and Braking System Caterpillar


Brake Oil Cooler (Rear)

Usage:

770 BZZ



图 1g01317093

(1) 举倾和制动油冷却器

(2) 举倾和制动油冷却器滤网

制动油冷却器 (1) 位于发动机前端。 来自水泵的发动机冷却液流过制动油冷却器 (1) 。 随后,发动机冷却液流回缸体。

后制动器被油冷却。 当举倾控制阀处于保持、浮动或 SNUB 位置时,来自举倾泵的所有油流过位于发动机右侧的举倾和制动油冷却器 (1) 。 来自制动系统多余的油与来自举倾泵的油汇合后流向油冷却器。 油从油冷却器流过后制动器。 油随后经由回油滤网返回液压油箱。

后制动器油冷却器 (1) 的滤网 (2) 位于螺塞的后面。

制动器冷却用油冷却器安全阀位于控制阀上。 当举倾控制阀处于保持、浮动或 SNUB 位置时,安全阀限制制动器冷却油的压力。

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