Komatsu PC500LC-10R Shop Manual page 367

10 STRUCTURE AND FUNCTION
CENTER SWIVEL JOINT
STRUCTURE OF CENTER SWIVEL JOINT
Outline drawing, sectional view
A1: To L.H. reverse travel motor (port PB)
A2: From control valve (port A2)
B1: To L.H. forward travel motor (port PA)
B2: From control valve (port B2)
C1: To R.H. reverse travel motor (port PA)
C2: From control valve (port A5)
1: Cover
2: Rotor
3: Slipper seal
4: Dust seal
PC500LC-10R
COMPONENT PARTS OF TRAVEL SYSTEM
D1: To R.H. forward travel motor (port PB)
D2: From control valve (port B5)
E1: To R.H. and L.H. travel motors (port Pi)
E2: From travel speed increase solenoid valve
DR1: From R.H. and L.H travel motors (port T)
DR2: To hydraulic tank
5: Oil seal
6: Cover
7: Shaft
8: O-ring
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