3054E Industrial Engine Caterpillar


Connecting Rod - For Use With Steel Crankshaft

Usage:

3054E 304



图 1g01356355

连杆的配合表面是通过液力挤压锻造连杆形成的。

(1) 将连杆螺栓拧紧至以下扭矩。 ... 18 N·m (13 lb ft)

再次将连杆螺栓拧紧至以下扭矩。 ... 70 N·m (52 lb ft)

将连杆的螺钉再拧紧 120 度。 本步骤后必须更换连杆 (1) 的螺钉。

注: 当组件脱离发动机时,一定要把连杆盖紧固到连杆上。 将组件拧紧至 20 N·m (14 lb ft)。

(2) 连杆轴承壳




图 2g01356356

轴承壳的对准

注: 连杆轴承壳必须与连杆两端平均地对准。 有关对准工具的信息,请参阅拆解和组装手册。

表 1
连杆轴承宽度    
31.62 至 31.88 mm (1.245 至 1.255 in)    
连杆盖轴承宽度    
31.55 至 31.88 mm (1.2405 至 1.255 in)    
连杆轴承中央的厚度    
1.835 至 1.842 mm (0.0723 至 0.0725 in)    
盖中央的连杆轴承的厚度    
1.835 至 1.842 mm (0.0722 至 0.0725 in)    
轴承间隙    
0.030 至 0.081 mm (0.0012 至 0.0032 in)    

表 2
缩小尺寸的连杆轴承    

0.25 mm (0.010 in)    

0.51 mm (0.020 in)    

0.76 mm (0.030 in)    



图 3g01356359

(B) 活塞销孔的直径 ... 43.01 至 43.04 mm (1.693 至 1.694 in)

(C) 轴承中心之间的距离 ... 219.05 至 219.10 mm (8.624 至 8.626 in)

(D) 连杆轴承孔的直径 ... 67.21 至 67.22 mm (2.6460 至 2.6465 in)




图 4g01356360

连杆有颜色代码。 颜色代码用以表示连杆长度 (Y) 。 请参阅表 3 以了解连杆的不同长度。

表 3
连杆的长度等级    
等级字母     颜色代码     长度 (Y)    
F     红    
165.728 至 165.761 mm (6.5247 至 6.5260 in)    
G     橙色    
165.682 至 165.715 mm (6.5229 至 6.5242 in)    
H     白色    
165.637 至 165.670 mm (6.5211 至 6.5224 in)    
J     绿色    
165.591 至 165.624 mm (6.5193 至 6.5206 in)    
K     紫色    
165.545 至 165.578 mm (6.5175 至 6.5188 in)    
L     蓝色    
165.499 至 165.532 mm (6.5157 至 6.4961 in)    

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