Hitachi EX20UR-2 Manual page 173

UNDERCARRIAGE / Travel Device
W563-03-02-001
The illustration above shows the travel device of EX4OUR-2.
EX2OUR-2 does not have the relief valve (shaded) section.
1— Stopper Ring 7— Ring Gear
41— Second Stage Carrier
49— Ring
2— 0-ring 22— Body
44— Sun Gear
50— Retaining Ring
(7 used)
3— Needle (72 used) 24— Relief Valve
45— Thrust Collar
51— First Stage Planetary
Gear (3 used)
4— Thrust Washer
25— Socket Bolt (4 used)
46— First Stage Carrier
52— Plug (4 used)
(10 used)
5— Needle (96 used)
26— 0-ring (2 used)
47— Retaining Ring
53— Thrust Washer
(4 used)
6— Second Stage
33— Body 48— Cover
Planetary Gear
(4 used)
W03-02-13