330D, 336D, 336D2, 340D and 340D2 Excavators Machine System Specifications – Relief Valve (Main)

Illustration 1 g02513818
Table 1
Specification for 310-0390 Relief Valve Gp    
Item     Qty     Part     Specification Description    
1     1     310-0391 Relief Valve Gp     Torque to
135 ± 10 N·m (100 ± 7 lb ft).    
2     1     6I-6795 Spring     Length under test force is
24.6 mm (0.97 inch).
Test force is
21.47 ± 1.72 N (4.83 ± 0.40 lb).
Free length after test is
30.0 mm (1.20 inch).    
3     1     095-1786 Backup Ring     Lubricate the bore of the backup ring lightly with the lubricant that is being sealed.    
4     1     4I-3510 Spring     Length under test force is
32.200 mm (1.2677 inch).
Test force is
218.676 ± 10.934 N (49.200 ± 2.500 lb).
Free length after test is
35.600 mm (1.4016 inch).    
5     1     171-0035 Holder     Torque to
75 ± 10 N·m (55 ± 7 lb ft).    
6     1     4I-7714 Nut     Torque to
50 ± 10 N·m (37 ± 7 lb ft).    
7     1     095-1587 O-Ring Seal     Lubricate the bore of O-ring seals lightly with the lubricant that is being sealed.    
8     1     095-1590 O-Ring Seal    
9     1     095-1579 O-Ring Seal