Pistons and Connecting Rods - Disassemble
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所需工具 | |||
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工具 | 零件号 | 零件描述 | 数量 |
A | 1P-1857 | 挡圈钳 | 1 |
B | 1U-6683 | 活塞环扩张器 | 1 |
开始:
- 拆下活塞和连杆。 请参阅拆解和组装, "活塞和连杆 - 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和缩短部件寿命。 |
- 在活塞和连杆组件的部件上作一个临时标记。 这能确保将每个活塞和连杆组件的部件重新安装在原来的气缸中。 标记活塞在活塞销前凸台上的底面。 请勿交换使用部件。
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图 1 g01244067 Show/hide table图 2 g01253091 典型示例 - 将活塞和连杆组件连杆朝上地放置在适当的表面上。 使用工具 (A) 拆下卡环 (5)。
注: 锻造标记 (X) 用于识别连杆组件的前部。 锻造标记应用来定方位。
- 将活塞销 (8) 和连杆 (6) 从活塞 (4) 上拆下。
注: 如果活塞销用手不能拆卸,加热活塞至温度为
45 ± 5 °C (113 ± 9 °F) 。 不要使用喷枪加热活塞。 记录连杆和活塞的方位。 - 将活塞顶部朝上放在适当的表面上。 使用工具 (B) 将压缩环 (1) 和 (2) 及控油环 (3) 从活塞 (4) 上卸下。
注: 确定压缩环 (1) 和 (2) 及控油环 (3) 的位置及朝向。
Show/hide table图 3 g01244068 - 将螺栓 (12) 和连杆盖 (11) 从连杆 (6) 上拆下。 废弃螺栓。
注: 放置断面分裂式连杆时必须要安装连杆盖。 在完成活塞和连杆的拆解程序后,应立即进行组装程序和安装程序。 请参阅拆解和组装, "活塞和连杆 - 组装"和拆解和组装, "活塞和连杆 - 安装"。
- 从连杆盖 (11) 上拆下连杆轴承 (10) 的下半部分。 从连杆 (6) 上卸下连杆上轴瓦 (9)。 将连杆上下轴瓦放在一起。
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注意 必须由受过正确培训的人员进行连杆中的活塞销衬套拆卸工作。 还需要使用专用机械设备。 有关更多信息,请咨询授权 Caterpillar 代理商。
- 检查连杆有无磨损或损坏。 如有必要,更换连杆 (6) 或更换活塞销的衬套 (7)。
注: 如果更换连杆或活塞销的衬套,先确定连杆的高度等级。 请参阅技术参数, "连杆"。
- 重复步骤 1 至 7,拆解其余的活塞和连杆。
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