320C and 322C Excavators Attachment Hydraulic System – Pilot Valve (Joystick)



Illustration 1 g02540180
Table 1
Specification for 206-3305 Pilot Valve Gp    
Item     Qty     Part     Specification Description    
1     1     131-5915 Special Nut     Apply Loctite 271 to the threads.
Torque to 69 ± 5 N·m (51 ± 4 lb ft).    
2     1     165-9431 Plate     Torque to
69 ± 5 N·m (51 ± 4 lb ft)    
3     1     4I-6365 Joint     Torque to
47 ± 3 N·m (35 ± 2 lb ft).    
4     4     118-4087 Spring     Free length is
10.6 mm (0.42 inch).    
5     4     190-7750 Spring can replace the 165-9461 Spring in order to reduce the operating torque to 70% of the original operating torque.
190-7751 Spring can replace the 165-9461 Spring in order to reduce the operating torque to 80% of the original operating torque.    
165-9461 Spring Free length is
41.9 mm (1.65 inch).    
190-7750 Spring Free length is
52.0 mm (2.05 inch).    
190-7751 Spring Free length is
60.1 mm (2.37 inch).
6     2     225-4816 Spring can replace the 165-9442 Spring in order to provide the operator with more finite control during machine operation.
244-8495 Spring can replace the 165-9442 Spring in order to provide the operator with more control that is equal to the A Series machines.
244-8499 Spring can replace the 165-9442 Spring in order to provide the operator with more control that is comparable to the A Series machines and to the B Series machines.    
165-9442 Spring Free length is
29.7 mm (1.17 inch).    
225-4816 Spring Free length is
30.5 mm (1.20 inch).    
244-8495 Spring Free length is
29.2 mm (1.15 inch).    
244-8499 Spring Free length is
29.4 mm (1.16 inch).    
7     2     225-4815 Spring can replace the 165-9460 Spring in order to provide the operator with more finite control during machine operation.
244-8494 Spring can replace the 165-9460 Spring in order to provide the operator with more control that is equal to the A Series machines.
244-8498 Spring can replace the 165-9460 Spring in order to provide the operator with more control that is comparable to the A Series machines and to the B Series machines.    
165-9460 Spring Free length is
31.1 mm (1.22 inch).
225-4815 Spring Free length is
32.0 mm (1.26 inch).
244-8494 Spring Free length is
30.1 mm (1.19 inch).
244-8498 Spring Free length is
30.6 mm (1.20 inch).
8     2     6V-8337 Bolt     Torque to
21.0 ± 1.5 N·m (185.9 ± 13.3 lb in).