770G and 772G Off-Highway Truck Systems Caterpillar


Brake Cooling Pressure - Check

Usage:

770G ECM

表 1
所需工具    
零件号     说明     所需数量    
198-4240     数字压力指示器     1    
6V-3965     接头组件     2    

  1. 以低怠速运转发动机。

    注: 确保油温处于 79°C (175°F) 和 93°C (200°F) 之间。




    图 1g02422498

    (1) 右后轮处制动器冷却机油测压口

    (2) 左后轮处制动器冷却机油测压口

  1. 使用 198-4240 数字压力指示器 检查低忌速下后轮制动器冷却油进口处压力。 测压口 (2) 用于左后轮。 测压口 (1) 用于右后轮。 压力不得低于 14 kPa (2 psi)。

  1. 以高怠速运转发动机。 使用 198-4240 数字压力指示器 检查高忌速下后轮制动器冷却油进口处压力。 压力计上的压力值不得高于 172 kPa (25 psi)。

    注: 如果超过此压力值,可能导致密封件损坏。

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