YANMAR ViO50-1 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD

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YANMAR ViO50-1 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD 

YANMAR VIO50-1 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD:

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YANMAR ViO50-1 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 ViO50-1 EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD 

Vio50-1.........................................................................................  1
FOREWORD........................................................................................  2
CONTENTS........................................................................................  3
1　GENERAL　CAUTIONS　FOR　MAINTENANCE　WORK.........................................................  6
	1-1　Correct　Work............................................................................  7
	1-2　Safety　Precautions......................................................................  7
	1-3　Preparations............................................................................  7
	1-4　Cautions　for　Disassembly　and　Reassembly.................................................  7
	1-5　Cautions　for　Removal　and　Installation　of　Hydraulic　Equipment............................  8
	1-6　Cautions　for　Removal　and　Installation　of　Hydraulic　Piping...............................  8
	1-7　Cautions　for　Handling　Seals.............................................................  8
	1-8　Correct　Installation　of　Hydraulic　Hose..................................................  9
	1-9　Specifications　of　Hydraulic　Hose........................................................ 11
	1-10　Air　Release　of　Hydraulic　Equipment..................................................... 15
2　TECHNICAL　DATA................................................................................ 16
	2-1　Specifications.......................................................................... 17
	2-2　Machine　Dimensions　and　Working　Ranges................................................... 24
		2-2-1　Canopy　Type....................................................................... 24
		2-2-2　Cabin　Type........................................................................ 25
	2-3　Component　Weights....................................................................... 26
	2-4　Lifting　Capacities...................................................................... 27
3　SERVICING　STANDARDS........................................................................... 28
	3-1　Machine　Performance..................................................................... 29
	3-2　Engine.................................................................................. 33
	3-3　Undercarriage........................................................................... 36
		3-3-1　Rubber　Crawler　Specifications..................................................... 36
		3-3-2　Steel　Crawler　Specifications...................................................... 37
		3-3-3　Common　Specifications　of　Steel　&　Rubber　Crawlers.................................. 38
	3-4　Controls................................................................................ 39
	3-5　Hydraulic　Equipment..................................................................... 40
		3-5-1　Hydraulic　Cylinder................................................................ 40
	3-6　Work　Implements......................................................................... 41
		3-6-1　Front　Attachments................................................................. 41
		3-6-2　Blade　Moving　Device............................................................... 42
		3-6-3　Bucket　Teeth...................................................................... 42
	3-7　List　of　Tightening　Torque............................................................... 43
		3-7-1　Machine........................................................................... 43
		3-7-2　Engine............................................................................ 45
		3-7-3　Tightening　Torque　for　General　Bolts　and　Nuts...................................... 45
4　ENGINE........................................................................................ 46
	4-1　Cylinder　Block.......................................................................... 47
	4-2　Cylinder　Head........................................................................... 52
	4-3　Piston　and　Piston　Pin................................................................... 59
	4-4　Connecting　Rod.......................................................................... 63
	4-5　Crankshaft　and　Main　Bearing............................................................. 66
	4-6　Camshaft　and　Tappets.................................................................... 69
	4-7　Timing　Gear............................................................................. 72
	4-8　Service　Data............................................................................ 74
	4-9　Cooling　System.......................................................................... 77
	4-10　Lubrication　System..................................................................... 83
	4-11　Fuel　Supply　System..................................................................... 91
	4-12　Starter　Motor..........................................................................144
	4-13　Alternator.............................................................................155
	4-14　Starting　Aids..........................................................................164
	4-15　Adjustment　of　Engine　Output............................................................165
5　HYDRAULIC　SYSTEM..............................................................................167
	5-1　Outline.................................................................................168
		5-1-1　Control　Valve　Operation...........................................................171
		5-1-2　Additional　Operation　of　Control　Valve.............................................173
	5-2　Hydraulic　Circuit　Schematic.............................................................174
		5-2-1　Standard　Specifications...........................................................174
	5-3　Circuit　Operation.......................................................................175
		5-3-1　Boom..............................................................................175
		5-3-2　Arm...............................................................................177
		5-3-3　Bucket............................................................................179
		5-3-4　Swing.............................................................................181
		5-3-5　Boom　Swing........................................................................183
		5-3-6　Blade.............................................................................185
		5-3-7　Travel............................................................................187
		5-3-8　Simultaneous　Operation　of　Travel　and　Boom/Bucket..................................189
		5-3-9　Simultaneous　Operation　of　Travel　and　Arm/Boom　Swing...............................191
		5-3-10　Simultaneous　Operation　of　Boom　Up　and　Arm　Retract................................193
		5-3-11　Simultaneous　Operation　of　Boom　Up　and　Bucket.....................................195
		5-3-12　Simultaneous　Operation　of　Boom　Up　and　Swing......................................197
		5-3-13　Simultaneous　Operation　of　Arm　and　Bucket.........................................199
		5-3-14　Hydraulic　P.T.O..................................................................201
	5-4　Pressure　Adjustment.....................................................................203
		5-4-1　Relief　Valves.....................................................................203
		5-4-2　Swing　Brake　Valve.................................................................205
		5-4-3　Cut-off　Valve.....................................................................206
6　HYDRAULIC　EQUIPMENT...........................................................................208
	6-1　Hydraulic　Pump..........................................................................209
	6-2　Control　Valve...........................................................................242
	6-3　Pilot　Valve.............................................................................287
	6-4　Swing　Motor.............................................................................294
	6-5　Travel　Motor............................................................................324
7　ADJUSTMENT　AND　REPAIR.........................................................................366
	7-1　Electric　Equipment　of　the　Machine.......................................................367
		7-1-1　Parts　Layout　of　Electrical　Equipment　and　Heater...................................367
		7-1-2　Monitor　and　Alarm　Systems.........................................................370
		7-1-3　Wiring　Diagram....................................................................374
	7-2　Undercarriage...........................................................................376
		7-2-1　Outline...........................................................................376
		7-2-2　Major　Parts.......................................................................376
		7-2-3　Points　of　Reassembly　(Rubber　Crawler　Models)......................................377
		7-2-4　Points　of　Reassembly　(Steel　Crawler　Models).......................................378
		7-2-5　Disassembly　and　Reassembly　of　Idler...............................................380
		7-2-6　Disassembly　and　Reassembly　of　Track　Roller........................................383
		7-2-7　Disassembly　and　Reassembly　of　Carrier　Roller......................................385
		7-2-8　Installation　of　Floating　Seal.....................................................386
		7-2-9　Drawings　of　Jigs..................................................................387
	7-3　Controls................................................................................389
		7-3-1　Control　Train.....................................................................389
		7-3-2　Mechanical　Control　Linkage........................................................390
		7-3-3　Adjustment　of　Implement　Control　Levers............................................392
		7-3-4　Adjustment　of　Travel　Levers.......................................................394
		7-3-5　Adjustment　of　2-Speed　Pedal.......................................................395
		7-3-6　Adjustment　of　Boom　Swing　Pedal....................................................396
		7-3-7　Adjustment　of　Blade　Control　Lever.................................................397
		7-3-8　Adjustment　of　Lock　Lever..........................................................398
		7-3-9　Adjustment　of　Accelerator　Lever...................................................399
	7-4　Swing　Bearing...........................................................................400
	7-5　Hydraulic　Equipment.....................................................................402
		7-5-1　Removal　and　Reinstallation (R&R)　of　Hydraulic　Pump................................402
		7-5-2　Disassembly　and　Reassembly　of　Hydraulic　Cylinder..................................407
		7-5-3　Swivel　Joint......................................................................408
		7-5-4　Hydraulic　Oil　Tank................................................................412
		7-5-5　Piping　Layout.....................................................................414
	7-6　Engine　Hood　and　Cabin...................................................................421
		7-6-1　Engine　Hood.......................................................................421
		7-6-2　Cabin.............................................................................422
8　PERIODIC　INSPECTION　AND　SERVICING.............................................................434
	8.　List　of　Periodic　Inspection　and　Servicing................................................435
9　FUEL，LUBE　OIL　AND　GREASE　RECOMMENDED..........................................................437
	9.　Fuel，Lube　Oil　and　Grease　Recommended　by　Yanmar...........................................438
10　TROUBLESHOOTING..............................................................................439
	10-1　Non-breakdowns.........................................................................440
		10-1-1　Natural　Release　of　Bucket........................................................440
		10-1-2　Discontinuous　Arm　Movement.......................................................440
		10-1-3　Drifting　of　Upperstructure　on　Quick　Travel　Operation.............................441
		10-1-4　Thermal　Shock　of　Travel　Motor....................................................442
		10-1-5　Elongation　of　Boom　Swing　Cylinder　on　70　degrees　Swing............................443
		10-1-6　Telescopic　Motion　of　Boom　Swing　Cylinder　with　Lock　Lever　Set　to　Lock　Position....444
		10-1-7　Time　Lag　on　Travel　Speed　Switching...............................................445
		10-1-8　Fluctuation　in　Oil　Level　of　Hydraulic　Oil　Tank　Due　to　Temperture　Change..........446
	10-2　Troubleshooting........................................................................447
		10-2-1　Machine　and　Engine...............................................................447
		10-2-2　Electrical　Equipment　on　Panel....................................................468
11　REFERENCE　DATA...............................................................................476
	11-1　Specifications　for　Attachment..........................................................477

PLEASE NOTE:

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
• You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
• Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted

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