320C and 322C Excavators Attachment Hydraulic System – Swing Motor

Illustration 1 g01411681

NOTICE

To prevent damage to the motor, the case must be filled with hydraulic oil at least to the fill port before operation.

Table 1
Specification for 158-8986 Swing Motor Gp    
Item     Qty     Part     Specification Description    
1     20     126-2055 Spring     Free length is
37.5 mm (1.48 inch).    
2     2     110-5525 Plug     Torque to
59.0 ± 5.9 N·m (43.5 ± 4.4 lb ft).    
3     4     7Y-5221 Bolt     Torque to
430 ± 43 N·m (317 ± 32 lb ft).    
4     2     7Y-4268 Spring     Free length is
48.5 mm (1.91 inch).    
5     2     094-1900 Plug     Torque to
334.0 ± 33.4 N·m (246.4 ± 24.6 lb ft).    
6     2     173-3452 Relief Valve Gp     Torque to
176 ± 10 N·m (130 ± 7 lb ft).