6. HYDRAULIC
SYSTEM
6-
9-
14
Procedure
(13) Install springs
22
and pins
23
into valve housing
15.
(14) Install inner face seal
24
and outer face seal
25
to balanc-
ing plate
26.
(15) With the notches of balancing plate
26
fitted with pins
23
,
install balancing plate
26
into valve housing
15.
(16) Install O-rings
28
and
29
to valve housing
15
, and then,
install valve housing
15
onto valve
27.
Notes :
a) Install the valve housing onto the valve while pressing bal-
ancing plate
26
with a thin rod such as a screwdriver
inserted into the port hole in the valve housing, to prevent
the balancing plate from coming off.
b) Align the drain holes in the valve housing and the valve
plate.
15
23
15
23
Outer face seal
Inner face seal
Balancing plate
24
25
26
24
25
26
Valve housing
Outer face seal
Balancing plate
Inner face seal
Pin
15
29
27
26
28
Drain hole
15
29
27
26
28
Summary of Contents for ViO12-2A
Page 1: ...SERVICE MANUAL EXCAVATOR ViO12 2A...
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Page 109: ...5 3 1 5 ELECTRIC SYSTEM 5 3 Wiring Diagram...
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Page 117: ...6 HYDRAULIC SYSTEM 6 1 3...
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Page 123: ...6 HYDRAULIC SYSTEM 6 2 1 6 2 Hydraulic Circuit Schematic...
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Page 219: ...6 HYDRAULIC SYSTEM 6 7 8 1 4 3 8 7 12 10 10 15 a b c Loctite 262 0 30Nm 0 45Nm...
Page 348: ...7 ADJUSTMENT AND REPAIR 7 5 31 6 Control Levers Pilot valves Control valve...
Page 349: ...7 ADJUSTMENT AND REPAIR 7 5 32 7 Upperstructure Implement Bucket cylinder Arm cylinder...
Page 351: ...7 ADJUSTMENT AND REPAIR 7 5 34 9 Undercarriage High speed travel solenoid valve...
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Page 360: ...CHAPTER 8 PERIODIC INSPECTION AND SERVICING 8 1 List of Periodic Inspection and Servicing 8 1...
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Page 364: ...CHAPTER 9 FUEL LUBE OIL AND GREASE RECOMMENDED 9 Fuel Lube Oil and Grease Recommended 9 1...
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Page 406: ...CHAPTER 11 REFERENCE DATA 11 1 Specifications for Attachment 11 1...
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