3524B and C175 Engines for Off-Highway Truck/Tractors Caterpillar


Cylinder Head

Usage:

797 5YW



图 1g03120176

表 1
380-5795 缸盖总成 的技术规格    
项目     数量     零件     技术规格说明    
1     2     130-2607 气门座圈     安装时,通过降低温度(推荐温度:
−60° C (−76° F))收缩气门座圈并将座圈放到缸盖沉孔中。    
2     2     130-2608 气门座圈     安装时,通过降低温度(推荐温度:
−60° C (−76° F))收缩气门座圈并将座圈放到缸盖沉孔中。    
3     5     3B-0645 杯塞     组装前,将高强度或高温厌氧法兰密封胶涂覆到孔中。    
4     1     3B-0623 杯形塞     组装前,将高强度或高温厌氧法兰密封胶涂覆到孔中。    
5     2     3B-0623 杯形塞     组装前,将高强度或高温厌氧法兰密封胶涂覆到孔中。
安装深度 (E) 为
1.0 ± 0.5 mm (0.04 ± 0.02 in)。    
6     2     3B-0623 杯形塞     组装前,将高强度或高温厌氧法兰密封胶涂覆到孔中。
安装深度 (D) 为
9.0 ± 0.5 mm (0.35 ± 0.02 in)。    



图 2g03117917

表 2
项目     数量     零件     技术规格说明    
7     6     131-0420 缸盖紧固件总成     使用以下步骤拧紧缸盖螺栓:
请参阅图 2 了解拧紧顺序。
1. 组装前,将清洁的发动机机油涂抹到螺栓的螺纹上。
2. 按数字顺序将螺栓 1 至螺栓 8 拧紧至
30 ± 5 N·m (22 ± 4 lb ft)。
3. 再次按数字顺序将螺栓 1 至螺栓 8 拧紧至
200 ± 15 N·m (148 ± 11 lb ft)。
4. 再次按数字顺序将螺栓 1 至螺栓 8 重新拧紧至
200 ± 15 N·m (148 ± 11 lb ft)。
5. 按数字顺序将螺栓 1 至螺栓 8 转动 180 ± 5 度。
6. 只有在螺栓 1 至螺栓 8 达到最终扭矩后,才拧紧两只螺栓 (9) 。
7. 拧紧两只螺栓 (9) 至扭矩为
55 ± 10 N·m (41 ± 7 lb ft)。    
8     2     131-0421 缸盖紧固件总成    
9     2     5B-0213 螺栓    

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