Hitachi EX20UR-2 Manual page 76

30
EX4OUR-2
Swing
17
19
14b
18
Bucket
W563-02-04-001
UPPERSTRUCTURE / Control Valve
Auxiliary
Boom
24— Plug (11 Used) 27— Make-up Valve (2 Used) B— 0-ring
A— 0-ring (11 Used) 28— Spring (4 Used) C— 0-ring
25— Spring (11 Used) 29— Check Valve (4 Used) 34— Plate
26a— Check Valve 30— Plug 52— Plug
26b— Check Valve (3 Used)
A— 0-ring
A— 0-ring
26c— Check Valve (3 Used) 31— Spring 53— Bushing
26d— Check Valve
32— Spool
A— Backup ring
26e— Check Valve 33— Orifice B— 0-rIng
26f— Check Valve A— Backup ring C— 0-ring
26g— Check Valve
26b_g
6 (,26e_il
Right Travel
23c
'fler-,
to
is
Relief
Left Travel
Arm
4— Rod (3 Used)
5— Main Relief Valve (2 Used)
8— Overload Relief Valve (8 Used)
7— Socket Bolt (38 Used)
8— Socket Bolt (12 Used)
9— Cover (4 Used)
10— Socket Bolt (4 Used)
11— Spring Seat (16 Used)
12— Spring (4 Used)
13— Plate (8 Used)
14a— Spool (Blade)
14b— Spool (Right Travel)
14c— Spool (Auxiliary)
14d— Spool (Offset)
14e— Spool (Left Travel)
15— 011 Seal (8 Used)
17— Cover (5 Used)
18— Cover (5 Used)
19—
0-ring (8 Used)
20— Socket Bolt (4 Used)
22— Spring (4 Used)
23a— Spool (Bucket)
23b— Spool (Arm)
23c— Spool (Boom)
23d— Spool (Swing)
le— Body (Relief)
1 b — Body (Blade)
1c— Body (Swing)
Id — Body (Boom)
18— Body (Right Travel)
1f — Body (Auxiliary)
1g- Body (Arm)
1h- Body (Offset)
11— Body (Bucket)
11— Body (Left Travel)
1k- Body (Relief)
2— 0-ring (11 Used)
3— Nut (6 Used)
W02-04-11