Hitachi EX20UR-2 Manual page 80

020, 1
% : 12 mm (EX2OUR-2)
14 mm (EX3OUR-2)
17 mm (EX4OUR-2)
Disassemble Control Valve Body
1. Remove nuts (3). Remove rods (4) to separate
the control valve in sections (bodies).
2. Remove 0-ring (2), spring (28) and check valve
(28) from each body (1).
3— Nut
4— Rod
1— Body
2— 0-ring
28— Spring
29— Check Valve
UPPERSTRUCTURE / Control Valve
The illustration shows the EX3OUR-2 control valve.
T562-02-04-001
The illustration shows the travel left section of
the EX3OUR-2 control valve.
Section A-A
W506-02-05-003
W02-04-16