301.5, 301.6, 301.7 CR, 301.8, and 302 CR Mini Hydraulic Excavator Machine System Caterpillar


Engine Performance - Test - Engine Speed

Usage:

301.8 H8X

技术规格

表 1
发动机转速 
项目  技术规格 
高怠速(1)  2530 - 2630 rpm 
低怠速(1)  1290 - 1390 rpm 
自动怠速(1)  1290 - 1390 rpm 
负载时的发动机转速  2400 rpm(2) 
(1) 空载
(2) 最低转速

简介

以下测试用于在飞轮壳体处测量发动机转速

所需工具

表 2
所需工具 
零件号  说明  数量 
1U-6602  光电转速表 

机器准备

  1. 将机器停放在水平地面上。

  2. 停止发动机。

  3. 在发动机的飞轮上安装一条反光带。

  4. 起动发动机。

测试步骤

  1. 升高液压油温度至 55° ± 5°C (131° ± 9°F)

  2. 读取光电转速表上的发动机转速显示 (rpm)。 有关所需发动机操作的发动机转速,请参阅表 1。

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