Hitachi EX20UR-2 Manual page 74

la
18a
Right Travel
Arm
11
Swing
Blade
c
23c
ld
On 50
A1349
IP 48
20b
Relief
lb
Left Travel
Bucket
3
Offset
•
Boom
UPPERSTRUCTURE / Control Valve
Disassemble and Assemble Control Valve
EX2 OUR-2
Flow Combiner Valve
la— Body (Relief)
tb— Body (Blade)
1c— Body (Swing)
1d— Body (Arm)
le— Body (Right Travel)
11— Body (Auxiliary)
1g— Body (Boom)
1h— Body (Offset)
Body (Bucket)
— Body (Left Travel)
1k— Body (Relief)
11— Body (Flow Combiner Valve)
2— 0-ring
3— Nut
4— Rod
5— Main Relief Valve
A— 0-ring
B— 0-ring
6— Overload Relief Valve
A— 0-ring
7— Socket Bolt
8— Screw
9— Cover
10— Socket Bolt
Auxiliary
11— Spring Seat
12— Spring
13— Plate
14a— Spool (Blade)
14b— Spool (Right Travel)
14c— Spool (Auxiliary)
14d— Spool (Offset)
14e— Spool (Left Travel)
W561-02-04-004
15— Wiper
16— Socket Bolt
17— Cover
18a— Cover
18b— Cover
19— 0-ring
20a— Socket Bolt
20b— Socket Bolt
21— Spring Seat
22— Spring
23a— Spool (Bucket)
23b— Spool (Boom)
23c— Spool (Arm)
23d— Spool (Swing)
23f— Spool (Flow Combiner Valve)
27— Make-up Valve
A— 0-ring
28— Spring
29— Check Valve
45— 0-ring
46— Spool Head
48— Spacer
W561-02-01.005
A— Backup ring
B— 0-ring
49— Spring
50— Poppet
51a— Poppet
W02-04-09