Hitachi EX20UR-2 Manual page 204

Rotor
Plunger
W507,02-04-006
UNDERCARRIAGE / Travel Device
MAINTENANCE STANDARD
Travel Motor
1. The clearance between the plunger diameter and
rotor bore diameter (D-d).
D-d
5
0.05 mm (EX2OUR-2, EX4OUR-2)
0.04 mm (EX3OUR-2)
2. The clearance between the plunger and piston
shoe.
850.2 mm (EX2OUR-2, EX4OUR-2)
0.4 mm (EX3OUR-2)
W107-02.06-140
W107-02-04-141
W03-02-44