YANMAR ViO26-6 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD
YANMAR VIO26-6 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD:
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YANMAR ViO26-6 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD
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YANMAR ViO26-6 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD
Correct work means the quickest possible completion of according to the correct procedures and the specified standards.
It is important when conducting certain operations always to bear in mind the equipment, tools, gauges, materials, oil and grease, etc. that you must have ready, as well as items to be checked, adjusted, or disassembled, and cautions to watch out for.
(1) Never attempt servicing while engine is running or immediately after stopping operation. (2) Wear work cloths, safety shoes and helmet. (3) Check the equipment and tools before use. Especially, be sure to check the crane, lifting equipment and tools.
(4) When working together with other persons, allocate everyone’s share of job, arrange the signals and act in concert with the other persons. (5) The operation of the crane and slinging work must be performed by qualified persons.
(6) Do not enter or pass under the raised load. (7) Lift and support the massive parts by crane before removing the installation bolts. (8) Disconnect cables from battery before repairing the electric system.
(9) Remove the battery when welding the machine. (1) Check the service record of the machine. (That is, check how many months or hours the machine has been used since the preceding overhaul, what was the trouble then and what parts were replaced.)
(2) Have all servicing tools ready, i.e., tools, measuring devices (which have received periodic maintenance), containers, oil & grease, etc. (3) Have the service literature (operation manual, parts catalog, etc.) ready.
(1) Clean the machine before disassembly. (2) Check and record the condition of the machine before disassembly : • Model, machine number, operation hours • Reasons for repair, history of repair •
Contamination of filters • Fuel and oil condition • Damage to parts, etc. (3) Place alignment marks on the necessary parts to facilitate reassembly. (4) Clean all the removed parts and new replacement parts and put them in order. (5) Use new seals, split pins, etc. for reassembly.
TABLE OF CONTENTS:
YANMAR ViO26-6 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD
1. General Cautions for Maintenance Work...................................................................... 10
1-1 Correct Work.......................................................................................... 12
1-2 Safety Precautions.................................................................................... 12
1-3 Preparations.......................................................................................... 12
1-4 Cautions for Disassembly and Reassembly............................................................... 12
1-5 Cautions for Removal and Installation of Hydraulic Equipment.......................................... 13
1-6 Cautions for Removal and Installation of Hydraulic Piping............................................. 13
1-7 Cautions for Handling Seals........................................................................... 14
1-8 Correct Installation of Hydraulic Hose................................................................ 14
1-9 Specifications of Hydraulic Hose...................................................................... 17
1-10 Air Release of Hydraulic Equipment................................................................... 19
2. Technical Data............................................................................................. 22
2-1 Specifications........................................................................................ 24
2-2 Outline Drawing and Working Area...................................................................... 33
2-3 Weight List of Main Parts............................................................................. 34
2-4 Lifting Capacity List................................................................................. 35
2-5 Specifications for Attachment......................................................................... 37
2-6 Periodic Inspection and Servicing..................................................................... 38
2-7 Fuel, Lube Oil and Grease Recommended................................................................. 39
2-8 Hydraulic Circuit Schematic........................................................................... 40
2-9 Wiring Diagram........................................................................................ 41
3. Service Standards.......................................................................................... 48
3-1 Machine Performance................................................................................... 50
3-2 Engine................................................................................................ 55
3-3 Undercarriage......................................................................................... 59
3-3-1 Rubber Track Specifications..................................................................... 59
3-3-2 Steel Track Specifications...................................................................... 60
3-3-3 Common Specifications of Steel & Rubber Crawlers................................................ 62
3-4 Controls.............................................................................................. 63
3-5 Hydraulic Equipment................................................................................... 65
3-5-1 Hydraulic Cylinders............................................................................. 65
3-6 Implement............................................................................................. 66
3-6-1 Front Attachments............................................................................... 66
3-6-2 Blade Moving Device............................................................................. 67
3-7 List of Tightening Torque............................................................................. 68
3-7-1 Machine......................................................................................... 68
3-7-2 Engine.......................................................................................... 72
3-7-3 Tightening Torque for General Bolts and Nuts.................................................... 73
3-7-4 Hydraulic Fitting............................................................................... 74
3-8 Pressure Adjustment................................................................................... 75
3-8-1 Relief Valves................................................................................... 75
3-8-2 Swing Brake Valve............................................................................... 78
3-8-3 Cut-Off Valve................................................................................... 79
4. Engine..................................................................................................... 80
4-1 Safety................................................................................................ 82
4-1-1 Safety Statements............................................................................... 82
4-1-2 Safety Precautions.............................................................................. 83
4-2 Engine................................................................................................ 94
4-2-1 Before You Begin Servicing...................................................................... 94
4-2-2 Special Service Tools........................................................................... 95
4-2-3 Measuring Instruments........................................................................... 97
4-2-4 Cylinder Head................................................................................... 99
4-2-5 Measuring and Adjusting Valve Clearance.........................................................113
4-2-6 Crankshaft and Camshaft Components..............................................................115
4-3 Fuel System...........................................................................................141
4-3-1 Before You Begin Servicing......................................................................141
4-3-2 Introduction....................................................................................142
4-3-3 Special Service Tools...........................................................................144
4-3-4 Measuring Instruments...........................................................................144
4-3-5 Fuel System Diagram.............................................................................145
4-3-6 Fuel System Components..........................................................................146
4-3-7 Fuel Injection Lines............................................................................147
4-3-8 Fuel Injection Pump.............................................................................149
4-3-9 Checking and Adjusting Fuel Injection Timing....................................................155
4-3-10 Fuel Injectors.................................................................................158
4-4 Cooling System........................................................................................165
4-4-1 Before You Begin Servicing......................................................................165
4-4-2 Introduction....................................................................................166
4-4-3 Cooling System Diagram..........................................................................166
4-4-4 Engine Coolant Pump Components..................................................................167
4-4-5 Engine Coolant System Check.....................................................................168
4-4-6 Engine Coolant Pump.............................................................................168
4-5 Lubrication System....................................................................................172
4-5-1 Before You Begin Servicing......................................................................172
4-5-2 Introduction....................................................................................173
4-5-3 Lubrication System Diagram......................................................................173
4-5-4 Checking Engine Oil Pressure....................................................................174
4-5-5 Trochoid Oil Pump...............................................................................174
4-6 Starter Motor.........................................................................................178
4-6-1 Before You Begin Servicing......................................................................178
4-6-2 Introduction....................................................................................179
4-6-3 Starter Motor Specifications....................................................................179
4-6-4 Starter Motor Troubleshooting...................................................................180
4-6-5 Starter Motor Components........................................................................181
4-6-6 Starter Motor...................................................................................182
4-7 Alternator............................................................................................193
4-7-1 Before You Begin Servicing......................................................................193
4-7-2 Introduction....................................................................................194
4-7-3 Alternator Specifications.......................................................................194
4-7-4 Alternator Troubleshooting......................................................................195
4-7-5 Alternator Components...........................................................................196
4-7-6 Alternator Wiring Diagram.......................................................................197
4-7-7 Alternator Standard Output......................................................................198
4-7-8 Alternator......................................................................................199
4-8 Electric Wiring.......................................................................................204
4-8-1 Electric Wiring Precautions.....................................................................204
4-9 Troubleshooting.......................................................................................205
4-9-1 Special Service Tools...........................................................................205
4-9-2 Troubleshooting By Measuring Compression Pressure...............................................206
4-9-3 Quick Reference Table For Troubleshooting.......................................................208
5. Electric System............................................................................................216
5-1 Electric Equipment of Machine.........................................................................217
5-1-1 Parts Layout of Electrical Equipment............................................................217
5-1-2 LCD Monitor and Alarm Systems...................................................................221
5-2 Circuit Description of Engine Start and Stop..........................................................225
5-2-1 Engine Start and Stop...........................................................................225
5-2-2 Battery charge..................................................................................227
5-3 Automatic Deceleration System.........................................................................229
5-3-1 Main Components and Wiring Diagram..............................................................229
5-3-2 Function and Control............................................................................232
5-3-3 Error Indication of Auto Deceleration Alarm Lamp................................................232
5-4 Error Code List.......................................................................................234
6. Hydraulic System...........................................................................................240
6-1 Outline...............................................................................................242
6-1-1 Control Valve Operation......................................................................... 0
6-1-2 Additional Operation of Control Valve........................................................... 0
6-2 Circuit Operation.....................................................................................245
6-2-1 Boom............................................................................................245
6-2-2 Arm.............................................................................................246
6-2-3 Bucket..........................................................................................247
6-2-4 Swing...........................................................................................248
6-2-5 Boom Swing......................................................................................249
6-2-6 P.T.O...........................................................................................250
6-2-7 Blade...........................................................................................251
6-2-8 Travel..........................................................................................252
6-3 Hydraulic Pump........................................................................................254
6-4 Control Valve.........................................................................................268
6-4-1 Introduction....................................................................................268
6-4-2 Troubleshooting.................................................................................269
6-4-3 Fundamental Rules...............................................................................270
6-4-4 Removal / Installation of the SX 10 Control Block...............................................270
6-4-5 Inlet Elements Repair Procedure.................................................................272
6-4-6 Distribution Element Repair Procedure...........................................................275
6-4-7 Maintenance Instruction of Inlet and Distribution element equipped with Translation Stand-by....286
6-5 Pilot Valve...........................................................................................290
6-6 Swing Motor...........................................................................................299
6-7 Travel Motor..........................................................................................315
7. Adjustment and Repair......................................................................................358
7-1 Engine and Electric Equipment.........................................................................360
7-1-1 Removal and Reinstallation of Engine............................................................360
7-1-2 Removal and Reinstallation of Starter Motor.....................................................372
7-1-3 Removal and Reinstallation of Radiator and Oil Cooler...........................................374
7-1-4 Removal and Reinstallation of Fan Belt..........................................................379
7-2 Undercarriage.........................................................................................382
7-2-1 Outline.........................................................................................382
7-2-2 Main Parts......................................................................................382
7-2-3 Points of Reassembly (Rubber Track).............................................................383
7-2-4 Points of Reassembly (Steel Track)..............................................................384
7-2-5 Removal and Reinstallation of Track.............................................................386
7-2-6 Removal and Reinstallation of Travel Motor......................................................388
7-2-7 Disassembly and Reassembly of Idler.............................................................390
7-2-8 Disassembly and Reassembly of Track Roller......................................................393
7-2-9 Disassembly and Reassembly of Carrier Roller....................................................396
7-2-10 Installation of Floating Seal..................................................................398
7-2-11 Drawings of Jig................................................................................399
7-3 Controls..............................................................................................400
7-3-1 Mechanical Control Linkage......................................................................400
7-3-2 Adjustment of Travel Levers.....................................................................401
7-3-3 Adjustment of Boom Swing Pedal..................................................................402
7-3-4 Adjustment of Blade Lever.......................................................................402
7-3-5 Adjustment of Lock Lever........................................................................403
7-4 Swing Bearing.........................................................................................404
7-5 Hydraulic Equipment...................................................................................406
7-5-1 Removal and Reinstallation of Hydraulic Pump....................................................406
7-5-2 Removal and Reinstallation of Control Valve.....................................................408
7-5-3 Removal and Reinstallation of Pilot Valves (L and R)............................................411
7-5-4 Removal and Reinstallation of Swing Motor.......................................................413
7-5-5 Removal and Reinstallation of Swivel Joint......................................................415
7-5-6 Disassembly and Reassembly of Swivel Joint......................................................419
7-5-7 Disassembly and Reassembly of Hydraulic Cylinder................................................422
7-5-8 Removal and Reinstallation of Fuel Tank.........................................................425
7-5-9 Removal and Reinstallation of Hydraulic Oil Tank................................................429
7-5-10 Piping Layout..................................................................................435
7-6 Work Implements.......................................................................................443
7-6-1 Removal and Reinstallation of Work Implements...................................................443
7-7 Cabin.................................................................................................451
7-7-1 Removal and Reinstallation of Cabin.............................................................451
8. Troubleshooting............................................................................................454
8-1 Non-Breakdowns........................................................................................456
8-1-1 Natural Release of Bucket.......................................................................456
8-1-2 Discontinuous Arm Movement......................................................................456
8-1-3 Drifting of Upperstructure on Quick Travel Operation............................................457
8-1-4 Thermal Shock of Travel Motor...................................................................458
8-1-5 Elongation of Boom Swing Cylinder on 65 degrees Swing...........................................459
8-1-6 Time Lag on Travel Speed Switching..............................................................460
8-1-7 Fluctuation in Oil Level of Hydraulic Oil Tank Due to Temperature Change........................461
8-2 Quick Reference Table for Troubleshooting.............................................................463
Page vierge...................................................................................................462
PLEASE NOTE:
This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.
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