Hitachi EX20UR-2 Manual page 96

UPPERSTRUCTURE / Swing Device
DISASSEMBLE AND ASSEMBLE SWING
DEVICE
Disassemble Swing Reduction Gears (EX3OUR-2)
W506-02-06-001
1— 0-ring 8— Oil Seal
15— Holder
22— Needle Bearing (3 used)
2— Drive Gear 9— Shim (0.05)
16— Inner Race (3 used)
23— Planetary Gear (3 used)
3— Holder 10— Shim (0.1)
17— Needle Bearing (3 used) 24— Spring Pin (2 used)
4— Gear
11— Shim (0.3)
18— Planetary Gear (3 used) 25— Thrust Plate
5— Retaining Ring 12— Ball Bearing
19— Rat Head Bolt (3 used)
26— Socket Bolt (3 used)
6— Ball Bearing 13— Plate
20— Thrust Plate
27— Swing Motor Assembly
7— Housing 14— Pinion Shaft
21— Inner Race (3 used)
W02-05-10