6-7-1
7
3LORW9DOYH
3LORWYDOYHXQLWIRUDUPUHVWLQVWDOODWLRQ
7\SH7+
0DLQWHQDQFH,QVWUXFWLRQV
,QWURGXFWLRQ
)RUHZRUG
This manual deals with the instructions relative to servicing and maintenance operations for the hydraulic pilot con-
trol unit 4TH5 for the inspections and servicing operations associated with the hydraulic system of the machine to
which they are connected. Please consult the maintenance manual supplied by the equipment manufacture.
It is recommended that only qualified personnel perform the installation, connection and maintenance of this device,
and that all operations shall be carried out in compliance with the technical standards in force and the cleanliness
regulations specific to this type of installation.
All information, illustrations, instructions and characteristics contained in this document are based on the latest
prod-uct information available at the time of publication. In its attempts to maintain a high-quality product,
MANNESMANN REXROTH reserves the right to make design or technical modifications at any time and without
prior notification.
6DIHW\,QVWUXFWLRQV
Please pay a special attention to the signals of safety alerts and special instructions in this manual. They are
indi-cated in the following manner:
,QGLFDWHVLQIRUPDWLRQRULQVWUXFWLRQVZKLFKPXVWEHIROORZHGWRJXDUDQWHH\RXUVDIHW\GXULQJ
RSHUDWLRQV
&$87,21
:DUQLQJDJDLQVWSRVVLEOHHTXLSPHQW
GDPDJH
1RWH
8VHIXOLQIRUPDWLRQ
To ensure maximum performance and safety during maintenance operations we advise you to
5HDGWKLVPDQXDOWKRURXJKO\
6.
HYDRAULIC SYSTEM
Summary of Contents for ViO12-2A
Page 1: ...SERVICE MANUAL EXCAVATOR ViO12 2A...
Page 2: ......
Page 3: ......
Page 9: ......
Page 21: ......
Page 23: ......
Page 37: ......
Page 55: ......
Page 57: ......
Page 99: ......
Page 109: ...5 3 1 5 ELECTRIC SYSTEM 5 3 Wiring Diagram...
Page 114: ......
Page 117: ...6 HYDRAULIC SYSTEM 6 1 3...
Page 118: ...6 HYDRAULIC SYSTEM 6 1 4...
Page 119: ...6 HYDRAULIC SYSTEM 6 1 5 This Page Intentionally Left Blank...
Page 121: ...6 HYDRAULIC SYSTEM 6 1 7...
Page 122: ...6 HYDRAULIC SYSTEM 6 1 8...
Page 123: ...6 HYDRAULIC SYSTEM 6 2 1 6 2 Hydraulic Circuit Schematic...
Page 125: ...6 HYDRAULIC SYSTEM 6 3 2...
Page 126: ...6 HYDRAULIC SYSTEM 6 3 3...
Page 127: ...6 HYDRAULIC SYSTEM 6 3 4 This Page Intentionally Left Blank...
Page 129: ...6 HYDRAULIC SYSTEM 6 3 6...
Page 130: ...6 HYDRAULIC SYSTEM 6 3 7...
Page 131: ...6 HYDRAULIC SYSTEM 6 3 8 This Page Intentionally Left Blank...
Page 133: ...6 HYDRAULIC SYSTEM 6 3 10...
Page 134: ...6 HYDRAULIC SYSTEM 6 3 11...
Page 135: ...6 HYDRAULIC SYSTEM 6 3 12 This Page Intentionally Left Blank...
Page 137: ...6 HYDRAULIC SYSTEM 6 3 14...
Page 138: ...6 HYDRAULIC SYSTEM 6 3 15...
Page 139: ...6 HYDRAULIC SYSTEM 6 3 16 This Page Intentionally Left Blank...
Page 141: ...6 HYDRAULIC SYSTEM 6 3 18...
Page 143: ...6 HYDRAULIC SYSTEM 6 3 20 This Page Intentionally Left Blank...
Page 145: ...6 HYDRAULIC SYSTEM 6 3 22...
Page 147: ...6 HYDRAULIC SYSTEM 6 3 24 This Page Intentionally Left Blank...
Page 149: ...6 HYDRAULIC SYSTEM 6 3 26...
Page 150: ...6 HYDRAULIC SYSTEM 6 3 27...
Page 151: ...6 HYDRAULIC SYSTEM 6 3 28 This Page Intentionally Left Blank...
Page 153: ...6 HYDRAULIC SYSTEM 6 3 30...
Page 155: ...6 HYDRAULIC SYSTEM 6 3 32 This Page Intentionally Left Blank...
Page 157: ...6 HYDRAULIC SYSTEM 6 3 34...
Page 159: ...6 HYDRAULIC SYSTEM 6 3 36 This Page Intentionally Left Blank...
Page 161: ...6 HYDRAULIC SYSTEM 6 3 38...
Page 162: ...6 HYDRAULIC SYSTEM 6 3 39...
Page 163: ...6 HYDRAULIC SYSTEM 6 3 40 This Page Intentionally Left Blank...
Page 165: ...6 HYDRAULIC SYSTEM 6 3 42...
Page 166: ...6 HYDRAULIC SYSTEM 6 3 43...
Page 168: ...6 HYDRAULIC SYSTEM 6 3 45...
Page 169: ...6 HYDRAULIC SYSTEM 6 3 46...
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...
Page 359: ......
Page 360: ...CHAPTER 8 PERIODIC INSPECTION AND SERVICING 8 1 List of Periodic Inspection and Servicing 8 1...
Page 361: ......
Page 364: ...CHAPTER 9 FUEL LUBE OIL AND GREASE RECOMMENDED 9 Fuel Lube Oil and Grease Recommended 9 1...
Page 365: ......
Page 367: ......
Page 369: ......
Page 406: ...CHAPTER 11 REFERENCE DATA 11 1 Specifications for Attachment 11 1...
Page 407: ......