Pistons and Connecting Rods - Remove
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| 所需工具 | |||
| 工具 | 零件号 | 零件描述 | 数量 |
| A | 5R-7425 | 盘车控制装置总成 | 1 |
| B | 1P-1861 | 挡圈钳 | 1 |
| C | 271-0498 | 涨圈 | 1 |
| D | 5P-8639 | 液压压力 | 1 |
| 8F-0024 | 软管组件 | 1 | |
| 1P-2375 | 快速连接连接器 | 1 | |
| 1P-2376 | 快速连接连接器 | 1 | |
| 439-5246 | 泵组件 | 1 | |
| E | 5P-8649 | 齿座 | 1 |
| F | 6V-3043 | 隔套 | 1 |
| G | 6V-3042 | 齿座 | 1 |
开始:
- 拆下缸盖。 请参阅拆解和组装, "缸盖 - 拆卸"。
- 拆下活塞冷却喷嘴。 请参阅拆解和组装, "活塞冷却喷嘴 - 拆卸和安装"。
- 如有必要，拆下发动机机油冷却器。 请参阅拆解和组装, "发动机机油冷却器 - 拆卸"。
- 如有必要，拆下发动机机油泵。 请参阅拆解和组装, "发动机机油泵 - 拆卸"。
- 如有必要，拆下辅助水泵。 参考"拆解与组装""辅助水泵 - 拆卸"。
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| 注意 |
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保持所有零件清洁无杂质。 杂质会造成快速磨损並縮短部件使用寿命。 |
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| 注意 |
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在检查、保养、测试、调整及维修产品时，请小心确保盛接油液。 在打开任何舱室或拆卸任何含有油液的部件前，请准备好盛接液体用的适当容器。 有关适合收集和盛接 Caterpillar 产品上液体的工具和用品，请参阅专门出版物 NENG2500 "Cat 代理商维修工具目录"。 按照本地法规和要求处置所有油液。 |
注: 发动机前端是指与飞轮相对的那一端。 右前气缸为 1 号缸，左前气缸为 2 号缸。
- 从飞轮壳体的右前侧拆下盖。 使用工具 (A) 转动飞轮，直到连杆盖上的四个螺栓都被拆下。
- 在每个连杆和相应的连杆盖上标记气缸号。
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图 1 g06156532 - 拆下 4 个螺栓 (1) 和连杆盖 (2)。
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图 2 g06156638 - 将活塞 (3) 从缸体内推出，直到活塞环从缸套中完全脱出。
- 拆下活塞 (3) 和连杆组件。
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图 3 g06156652 - 使用工具 (B) 拆下固定活塞销 (5) 的挡圈 (4)。
- 拆下活塞销 (5)。
- 将活塞 (7) 从连杆 (8) 上拆下。
- 使用工具 (C) 从活塞 (7) 上拆下活塞环 (6)。
- 用合适的环形凹槽工具清洁活塞环形凹槽。 参考再使用和修补指南，SEBF8059, “活塞的检查程序和技术规格”。
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图 4 g06121646 - 将连杆的距离 (Z) 加热至
217.5° ± 42.5°C (423.5° ± 108.5°F) 以组装轴承，或在室温下安装连杆前将轴承 (9) 冷却至−85° ± 5°C (−121° ± 23°F) 。 - 用工具 (D) 将新活塞销轴承 (9) 推入到连杆中。
参考专门说明书 SESH-7295-03 , "活塞轴承拆卸和安装工具的使用"，了解更多信息。
Caterpillar Information System:
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