3046 Engine for Caterpillar Built Machines Caterpillar


Engine Oil Pressure - Test

Usage:

D4C III 1FW

表 1
所需工具 
零件号  零件描述  数量 
1U-5470  发动机压力表总成 

有故障的机油压力计可能会指示机油压力过低。

1U-5470 发动机压力表总成可用于检查发动机机油压力。



图 1g00296486
1U-5470 发动机压力表总成

1U-5470 发动机压力表总成具有可用来测量发动机中机油压力的仪表。 请参阅专门说明书, SEHS8907,了解关于 1U-5470 发动机压力表总成使用的更多信息。 该信息包括在机具总成中。

  1. 确保发动机被加注到正确的机油油位。

  2. 1U-5470 发动机压力表总成连接到发动机机油测压口位置上。

  3. 运转发动机。 使发动机达到正常的工作温度。

  4. 发动机运转到额定转速以保持机油温度恒定。 读取压力表读数。

  5. 请参阅表 2,以确定发动机机油压力是否在公差范围内。

表 2
机油压力(1) 
1500 rpm 时的机油压力  300 to 500 kPa (44 to 73 psi) 
怠速时的机油压力  100 kPa (15 psi) 
(1) 机油温度必须为 60 ° to 88 °C (140 ° to 158 °F)

如果测试结果不在表 2 中的压力范围内,找出问题的原因并解决该问题。 持续在机油压力超出此范围的情况下运转发动机会造成发动机故障或发动机使用寿命的减少。

注: 常规保养时对发动机机油压力的记录可用作发动机可能出现问题的指示。 常规保养时机油压力的记录也可用作发动机可能损坏的恒量指标。 在机油压力的突然升高或降低超过 70 kPa (10 psi) 时,应当检查发动机并修复故障。

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