Yanmar ViO12-2A Mini Excavators Manuals

Manuals and User Guides for Yanmar ViO12-2A Mini Excavators. We have 1 Yanmar ViO12-2A Mini Excavators manual available for free PDF download: Service Manual

Yanmar ViO12-2A Service Manual (409 pages)

Brand: Yanmar | Category: Excavators | Size: 19 MB

Table of Contents
4
General Cautions for Maintenance Work
10
Correct Work
10
Safety Precautions
10
Preparations
10
Cautions for Disassembly and Reassembly
10
Cautions for Removal and Installation of Hydraulic Equipment
11
Cautions for Removal and Installation of Hydraulic Piping
11
Cautions for Handling Seals
12
Correct Installation of Hydraulic Hose
12
Specifications of Hydraulic Hose
15
Air Release of Hydraulic Equipment
20
Technical Data
22
Specifications
24
Outline Drawing and Working Area
32
Weight List of Main Parts
33
Lifting Capacity List
34
Service Standards
36
Machine Performance
38
Engine
42
Undercarriage
46
Rubber Crawler Specifications
46
Controls
48
Hydraulic Equipment
49
Hydraulic Cylinders
49
Implement
50
Front Attachments
50
Blade Moving Device
51
Bucket Teeth
51
List of Tightening Torque
52
Machine
52
Engine
54
Tightening Torque for General Bolts and Nuts
54
Engine
56
Exploded View (General Layouts of Major Engine Components)
58
Engine
58
Measurement, Inspection and Adjustment
59
Measuring the Compression Pressure
59
Adjusting the Valve Clearance
60
Checking the V-Belt Tension
61
Checking the Fuel Injection Valve
61
Checking and Adjusting Fuel Injection Timing
63
Adjusting the Maximum (or Minimum) Idling Speed
68
Checking the Cooling Water System and Radiator for Water Leakage
68
Radiator for Water Leakage
68
Checking the Sensors
69
Measurement Procedure, Service Data and Corrective Action
70
Cylinder Head
70
Cylinder Block
75
Valve Rocker Arm
77
Piston and Piston Rings
79
Connecting Rod
82
Cam Shaft
85
Crank Shaft
86
Gears
89
Trochoid Pump
90
Precautions for Reassembly
91
Electrical Equipment
94
Starter Motor
94
Alternator
95
Electric System
98
Parts Layout of Electrical Equipment
100
Electrical Equipment and Electric Wiring
100
Monitor and Alarm Systems
102
Part Name
102
Performances of Alarm Sensors
102
Operation of Alarm Sensors
103
Inspection of Electrical Equipment
104
Wiring Diagram
109
Circuit Description of Engine Start and Stop
110
Start Engine
110
Engine Stop
111
Battery Charge
112
Failure in Battery Charge
112
Outline
115
Control Valve Operation
120
Hydraulic Circuit Schematic
123
Circuit Operation
124
Boom
124
Arm
128
Bucket
132
Swing
136
Boom Swing
140
Blade
144
Travel
148
Track Gauge Change
152
Simultaneous Operation of Travel and Blade
156
Simultaneous Operation of Boom up and Bucket
160
Hydraulic P.T.O
164
Safety Lock
167
Pressure Adjustment
170
System Relief Valves
170
Circuit Relief Valves
171
Swing Brake Valve
172
Cut-Off Valve
173
Hydraulic Pump
174
Control Valve
192
Cut-Off Valve
221
Swing Motor
227
Travel Motor
244
Solenoid Valve
271
Adjustment and Repair
276
Engine of Machine
277
Removal and Reinstallation of Engine
277
Removal and Reinstallation of Starter Motor
284
Removal and Reinstallation of Fuel Injection Pump
287
Removal and Reinstallation of Fuel Tank
289
Removal and Reinstallation of Radiator
291
Undercarriage
293
Outline
293
Points of Reassembly
294
Removal and Reinstallation of Crawler
296
Disassembly and Reassembly of Idler
297
Disassembly and Reassembly of Track Roller
300
Removal and Reinstallation of Track Gauge Change Cylinder
303
Controls
307
Control Train
307
Mechanical Control Linkage
308
Adjustment of Travel and Blade Levers
310
Adjustment of Boom Swing and P.T.O. Pedals and P.T.O. Pedal Lock
311
Adjustment of Lock Lever Switch
312
Adjustment of Accelerator Lever
314
Swing Bearing
316
Removal and Reinstallation of Swing Bearing
316
Hydraulic Equipment
318
Removal and Reinstallation of Hydraulic Oil Tank
318
Removal and Reinstallation of Control Valve
323
Removal and Reinstallation of Swing Motor
326
Removal and Reinstallation of Swivel Joint
328
Disassembly and Reassembly of Hydraulic Cylinders
335
Removal and Reinstallation of Boom Swing Cylinder
339
Piping Layout
343
Implement
352
Removal and Reinstallation of Implement
352
Periodic Inspection and Servicing
360
List of Periodic Inspection and Servicing
362
Fuel, Lube Oil and Grease Recommended
364
Troubleshooting
368
Non-Breakdowns
370
Natural Release of Bucket
370
Discontinuous Arm Movement
370
Drifting of Upperstructure on Quick Travel Operation
371
Thermal Shock of Travel Motor
372
Change of Blade Speed in Loaded Condition
373
Time Lag on Travel Speed Switching
374
Fluctuation in Oil Level of Hydraulic Oil Tank Due to Temperature Change
375
Troubleshooting
375
Machine and Engine
376
Electrical Equipment on Panel
397
Reference Data
406
Specifications for Attachment
408

Yanmar Categories

Engine Tractor Portable Generator Excavators Outboard Motor

More Yanmar Manuals

Yanmar ViO12-2A Mini Excavators Manuals

Yanmar ViO12-2A Service Manual (409 pages)

Table of Contents

Related Products

Yanmar Categories