Overhaul (Top End)
顶端大修包括缸盖部件的拆卸、检查和再加工。 一些额外的部件也要更换和维修。
您的卡特彼勒代理商能提供这些维修和零件。 您的卡特彼勒代理商可以确保这些部件在适当的规格范围内运行。
下列定义对大修期间进行维修时所用术语进行了解释:
检查 - 根据卡特彼勒零件再用性出版物中的说明来检查部件。 请参考再用零件和修复操作准则, SEBF8029, "旧件再用性或修复出版物索引"。 该准则的编发有助于卡特彼勒代理商和用户避免不必要的费用支出。 如果现有零部件还能使用、翻修或修理,就不要求使用新零件。 如果部件没有出现在再用性准则中,请参考维修手册, "规格"单元。
重新修配 - 部件可被翻修以便符合再用性指导原则。
更换 - 零件的使用寿命已耗尽。 零部件可能在下一个保养周期前损坏。 必须更换成符合功能规格的零件。 替换零件可能是新件、卡特彼勒再造零件、重新修配零件或已用过的零件。 有些磨损部件可以和您的卡特彼勒代理商兑换成替换零件的信用。 有关您的发动机维修选项事宜,请咨询您的卡特彼勒代理商。
如果您选择不由卡特彼勒代理商进行大修,则要了解表1中的建议。
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顶端大修建议 (1)     | ||
维修保养     | 顶端大修     | |
检查 重新修配 更换     |
气缸盖组件     | |
阀 | ||
检查 更换     |
摇臂     | |
气门桥 | ||
更换     | 缸盖密封垫     |
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( 1 ) | 有关部件拆卸和安装的说明,请参阅维修手册, "拆卸和安装"单元。 |
Caterpillar Information System:
3126B Engines Engine Valve Lash - Inspect/Adjust
3524B Engines for 797 and 797B Off-Highway Trucks Fuel Injector Adjustment
3126B Engines Engine Crankcase Pressure (Blowby) - Test
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3524B Engines for 797 and 797B Off-Highway Trucks Camshaft Timing
3126B Engines Aftercooler - Test
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3126B Engines Excessive Engine Oil Consumption - Inspect
3126B Engines Increased Engine Oil Temperature - Inspect
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3408E and 3412E Engines for Caterpillar Built Machines Air Inlet and Exhaust System - Inspect