621H, 623H and 627H Wheel Tractor-Scrapers Braking and Hydraulic Fan System Caterpillar


Control Manifold (Brake, Differential Lock, Hydraulic Fan)

Usage:

623H DBF



Illustration 1g03402166

Table 1
Specification for 326-4648 Control Manifold Gp    
Item     Qty     Part     Specification Description    
1     1     -     Tighten the nut to
6.1 ± 0.7 N·m (54.1 ± 6.2 lb in).    
2     1     198-2914 Nut     Torque to
20 ± 3 N·m (177 ± 27 lb in).    
3     1     -     Tighten the nut to
8.2 ± 1.3 N·m (72.6 ± 11.5 lb in).    
4     1     340-1766 Relief Valve Gp     Torque to
35 ± 2 N·m (26 ± 1 lb ft).    
5     1     368-2114 Relief Valve Gp     Torque to
35.3 ± 1.4 N·m (26.0 ± 1.0 lb ft).    
6     2     340-1777 Check Valve Gp     Torque to
47.6 ± 2.7 N·m (35.1 ± 2.0 lb ft).    
7     1     333-8242 Solenoid Valve Gp     Torque to
27.2 ± 1.4 N·m (240.7 ± 12.4 lb in).    
8     1     340-1774 Diverter Valve Gp     Torque to
47.0 ± 2.8 N·m (34.7 ± 2.1 lb ft).    
9     1     338-0511 Solenoid Valve Gp     Torque to
50 ± 7 N·m (37 ± 5 lb ft).    
10     1     277-6343 Solenoid Valve Gp     Torque to
34.0 ± 1.3 N·m (301.0 ± 11.5 lb in).    
11     1     340-1775 Pressure Reducing Valve     Torque to
35 ± 2 N·m (26 ± 1 lb ft).    
12     1     340-1776 Pressure Reducing Valve     Torque to
35 ± 2 N·m (26 ± 1 lb ft).    
13     1     302-8161 Check Valve Gp     Torque to
47.6 ± 2.7 N·m (35.1 ± 2.0 lb ft).    
14     1     340-1772 Compensating Valve Gp     Torque to
65 ± 3 N·m (48 ± 2 lb ft).    
15     1     241-5889 Shuttle Valve Gp     Torque to
24 ± 3 N·m (212 ± 27 lb in).    
16     1     -     Tighten the nut to
6.1 ± 0.7 N·m (54.1 ± 6.2 lb in).    
17     1     -     Tighten the nut to
27.2 ± 1.4 N·m (240.7 ± 12.4 lb in).    

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