Foot Brake Control (Service) Pilot Pressure - Test
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机器突然移动，会造成人员伤亡。 机器突然移动或释放气压或油压，可能对机器上或机器附近的人员造成伤害。 在测试和调整任何空气系统或液压系统之前，为防止可能的伤害，执行测试和调整, "概述"部分的程序。 |
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在进行检验、保养、测试、调整及维修产品期间，必须小心以确保装好排放出的油液。 在打开任何舱室或解体任何储有液体的部件之前，要准备好合适的容器收集液体。 有关收集和盛接 Cat 产品上油液的适用工具和用品，请参阅专门出版物, NENG2500, "代理商维修工具目录"。 按照当地法规和要求处置所有液体。 |
注: 执行此步骤前，必须排空行车制动器液压管路内的空气。 执行测试和调整, "制动系统空气 - 排放"中的步骤。
- 将一个 8T-0857 压力表 (10000 kPa (1450 psi)) 连接至测压口 (1) 。
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| 图 1 | g02004953 |
(1) 测压口 (2) 控制阀（制动器） | |
- 起动机器。
- 使蓄能器完全充注。
- 接合行车制动器数次。
注: 确保机油处于正常工作温度。
- 记录测压口 (1) 显示的压力。
注: 测压口 (1) 处的压力读数应为 4950 ± 150 kPa (718 ± 22 psi)。
- 如果压力表上的压力读数不在正确范围内，则参阅故障诊断与排除, "制动系统"，对故障进行诊断与排除。
- 拆下测试设备。
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