312D and 313D Excavators Machine System Specifications Front Lines Caterpillar


Front Lines
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Illustration 1g02171413

Front view

Table 1
Specification for 278-6694 Front Lines Gp    
Item     Qty     Part     Specification Description    
1     2     335-0158 Solenoid and Relief Valve Gp     Torque to 135 ± 10 N·m (100 ± 7 lb ft).    
2     1     366-9311 Pressure Sensor Gp     Before assembly, apply thin hydraulic oil to the outer diameter of male thread.
Torque to
100 ± 10 N·m (74 ± 7 lb ft).    
3     1     266-0939 Hose As     Torque to
160 ± 16 N·m (118 ± 12 lb ft).    



Illustration 2g02579918

Right side view

Table 2
Item     Qty     Part     Specification Description    
4     1     148-8357 Elbow As     Torque to
150 to 165 N·m (111 to 122 lb ft).    
5     1     282-7150 Hose As     Torque to
160 ± 16 N·m (118 ± 12 lb ft).    
6     1     282-7154 Hose As     Torque to
160 ± 16 N·m (118 ± 12 lb ft).    
7     1     148-8392 Elbow As     Torque to
160 ± 16 N·m (118 ± 12 lb ft).    
8     1     282-7476 Hose As     Torque to
160 ± 16 N·m (118 ± 12 lb ft).    
9     1     270-6110 Connector As     Torque to
165 ± 15 N·m (122 ± 11 lb ft).    
10     2     309-9973 Relief Valve Gp     Torque to
73.5 ± 4.9 N·m (54.2 ± 3.6 lb ft).    

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