308E2 CR Mini Hydraulic Excavator Machine System Specifications Caterpillar


Boom Cylinder

Usage:

308E2 CR FJX



Illustration 1g03484416

Table 1
Specification for 376-0172 Boom Cylinder and Lines Gp    
Item     Qty     Part     Specification Description    
1     4     6V-8337 Bolt     Torque to 26.5 ± 2.7 N·m (234.5 ± 23.9 lb in).    
2     3     174-9194 Bolt     Torque to
26.5 ± 2.7 N·m (234.5 ± 23.9 lb in).    
3     2     239-7708 Bushing     Bore after assembly is
60.006 to 60.141 mm (2.3624 to 2.3678 inch).    
4     1     382-5744 Boom Cylinder As     Bore is
110 mm (4.3 inch).    
5     1     9X-6279 Socket Setscrew     Torque to
19.6 ± 2.0 N·m (173.5 ± 17.7 lb in).    
6     1     382-5753 Piston     Torque to
1177 ± 118 N·m (868 ± 87 lb ft).    
7     1     382-5821 Bolt     Torque to
128.0 ± 12.8 N·m (94.4 ± 9.4 lb ft).    
8     1     382-5751 Bushing     Bore before assembly is
70 mm (2.8 inch).    
9     1     415-3106 Head     Torque to
902 ± 90 N·m (665 ± 66 lb ft).    
10     1     382-5745 Rod As     Diameter is
70 mm (2.8 inch).    
11     1     239-7709 Bushing     Bore after assembly is
54.990 to 55.136 mm (2.1640 to 2.1707 inch).
Installation depth is
5 mm (0.2 inch).    

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