320B, 322B, 325B and 330B Excavators Attachment Hydraulic System Caterpillar


Pressure Specifications

Usage:

320B 1XS

Table 1
Relief Valve     Specifications     Torque For Locknut    
Main    
34300 ± 500 kPa (4975 ± 72.5 psi)    

50 ± 10 N·m (442.5 ± 88.5 lb in)    
One-Way Flow    
18400 ± 700 kPa (2670 ± 101.5 psi)    
Boom Lowering Control Valve    
36300 ± 500 kPa (5265 ± 72.5 psi)    

200 ± 40 N·m (147.5 ± 29.5 lb ft)    
Stick Control Valve (Lowering)    
36300 ± 500 kPa (5265 ± 72.5 psi)    

100 ± 10 N·m (73.8 ± 7.4 lb ft)    

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