YANMAR B37V EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD

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YANMAR B37V EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD 

YANMAR B37V EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD:

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DESCRIPTION:

YANMAR B37V 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 B37V EXCAVATOR SERVICE MANUAL – PDF DOWNLOAD 

B37V...............................................................................................  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 Control Devices............................................................................ 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 Measurement，Inspection and Adjustment...................................................... 47
		4-1-1 Measuring the Compression Pressure................................................... 47
		4-1-2 Adjusting the Valve Head Clearance................................................... 49
		4-1-3 Checking the V-belt Tension.......................................................... 50
		4-1-4 Checking the Fuel Injection Valve.................................................... 50
		4-1-5 Checking and Adjusting the Fuel Injection Timing..................................... 54
		4-1-6 Adjusting the No-load Maximum (or Minimum) Revolutions............................... 59
		4-1-7 Checking the Cooling Water System and Radiator for Water Leakage..................... 59
		4-1-8 Checking the Sensors................................................................. 60
	4-2 Measuring Procedure，Service Data and Corrective Action..................................... 61
		4-2-1 Cylinder Head........................................................................ 61
		4-2-2 Cylinder Block....................................................................... 67
		4-2-3 Valve Rocker Arm..................................................................... 70
		4-2-4 Piston and Piston Ring............................................................... 72
		4-2-5 Connecting Rod....................................................................... 77
		4-2-6 Camshaft............................................................................. 80
		4-2-7 Crankshaft........................................................................... 82
		4-2-8 Gears................................................................................ 85
		4-2-9 Trochoid Pump........................................................................ 87
	4-3 Precautions Reassembly..................................................................... 88
	4-4 Fuel Supply System......................................................................... 92
		4-4-1 Fuel Injection Pump.................................................................. 92
		4-4-2 Fuel Feed Pump....................................................................... 94
		4-4-3 Fuel System.......................................................................... 95
		4-4-4 Fuel Injection Valve................................................................. 95
		4-4-5 Governor Mechanism................................................................... 96
		4-4-6 Specification of Fuel Injection Pump................................................. 99
		4-4-7 Service Data for Fuel Injection Equipment............................................100
	4-5 Electrical Equipment.......................................................................101
		4-5-1 Starter Motor........................................................................101
		4-5-2 Alternator...........................................................................103
		4-5-3 Air Heater...........................................................................104
5 HYDRAULIC  SYSTEM................................................................................105
	5-1 Outline....................................................................................106
		5-1-1 Control Valve Operation..............................................................109
		5-1-2 Additional Operation of Control Valve................................................111
	5-2 Hydraulic Circuit Schematic................................................................112
		5-2-1 Standard Specifications..............................................................112
	5-3 Circuit Operation..........................................................................113
		5-3-1 Boom.................................................................................113
		5-3-2 Arm..................................................................................115
		5-3-3 Bucket...............................................................................117
		5-3-4 Swing................................................................................119
		5-3-5 Boom Swing...........................................................................121
		5-3-6 Blade................................................................................123
		5-3-7 Travel...............................................................................125
		5-3-8 Simultaneous Operation of Travel and Boom/Bucket.....................................127
		5-3-9 Simultaneous Operation of Travel and Arm/Boom Swing..................................129
		5-3-10 Simultaneous Operation of Boom and Bucket...........................................131
		5-3-11 Simultaneous Operation of Arm and Bucket............................................133
		5-3-12 Hydraulic P.T.O.....................................................................135
	5-4 Pressure Adjustment........................................................................137
		5-4-1 Relief Valves........................................................................137
		5-4-2 Swing Brake Valve....................................................................139
		5-4-3 Cut-off Valve........................................................................140
6 HYDRAULIC EQUIPMENT..............................................................................142
	6-1　Hydraulic　Pump.............................................................................143
	6-2　Control　Valve..............................................................................164
	6-3　Pilot　Valve................................................................................211
	6-4　Swing　Motor................................................................................212
	6-5　Travel　Motor...............................................................................232
7 ADJUSTMENT　AND　REPAIR............................................................................233
	7-1 Electric Equipment of the Machine..........................................................234
		7-1-1　Arrangement of Electrical Equipment and Names of Parts...............................234
		7-1-2 　Monitor and Alarm Systems...........................................................236
		7-1-3　Wiring　Diagram.......................................................................240
	7-2　Undercarriage..............................................................................241
		7-2-1　Outline..............................................................................241
		7-2-2　Major　Parts..........................................................................241
		7-2-3　Points　of　Reassembly　(Rubber　Crawler　Models).........................................242
		7-2-4　Points　of　Reassembly　(Steel　Crawler　Models)..........................................243
		7-2-5　Disassembly　and　Reassembly　of　Idler..................................................245
		7-2-6　Installation　of　Idler　Assembly.......................................................246
		7-2-7　Disassembly　and　Reassembly　of　Track　Roller...........................................247
		7-2-8　Disassembly　and　Reassembly　of　Carrier　Roller.........................................248
		7-2-9　Drawing　of　Jig.......................................................................249
	7-3　Control....................................................................................250
		7-3-1　Control　Train........................................................................250
		7-3-2　Disassembly　and　Reassembly　of　Mechanical　Control　Linkage.............................251
		7-3-3　Adjustment　of　Lock　Lever.............................................................253
		7-3-4　Adjustment　of　Implements　and　Swing　Control　Levers　(for　Semi-long　Lever　Type　Only)....255
		7-3-5　Adjustment　of　Travel　Levers..........................................................256
		7-3-6　Adjustment　of　2-Speed　Pedal..........................................................257
		7-3-7　Adjustment　of　Boom　Swing　Pedal.......................................................258
		7-3-8　Adjustment　of　Blade　Lever............................................................259
		7-3-9　Adjustment　of　Engine　Speed　Control...................................................260
	7-4　Swing　Bearing..............................................................................261
	7-5　Hydraulic　Equipment........................................................................262
		7-5-1　Precautions　for　Removal　and　Installation，and　Assembly　of　Hydraulic　Pump..............262
		7-5-2　Disassembly　and　Reassembly　of　Hydraulic　Cylinder.....................................267
		7-5-3　Swivel　Joint.........................................................................268
		7-5-4　Hydraulic　Oil　Tank...................................................................272
		7-5-5　Piping　Layout........................................................................274
	7-6　Cabin......................................................................................282
8 PERIODIC　INSPECTION　AND　SERVICING................................................................283
	8.　List　of　Periodic　Inspection　and　Servicing...................................................284
9 FUEL，LUBE　OIL　AND　GREASE　RECOMMENDED.............................................................286
	9.　Fuel，Lube　Oil　and　Grease　Recommended　ｂｙ　Yanmar..............................................287
10 TROUBLESHOOTING.................................................................................288
	10-1　Non-breakdowns............................................................................289
		10-1-1　Natural　Release　of　Bucket...........................................................289
		10-1-2　Discontinuous　Arm　Movement..........................................................289
		10-1-3　Drifting　of　Upperstructure　on　Quick　Travel　Operation................................290
		10-1-4　Thermal　Shock　of　Travel　Motor.......................................................291
		10-1-5　Elongation　of　Boom　Swing　Cylinder　on　80　degrees　Swing...............................292
		10-1-6　Time　Lag　on　Travel　Speed　Switching..................................................293
		10-1-7　Fluctuation　in　Oil　Level　of　Hydraulic　Oil　Tank　Due　to　Temperature　Change............294
	10-2　Troubleshooting...........................................................................295
		10-2-1　Machine　and　Engine..................................................................295
		10-2-2　Electrical　Equipment　on　Panel.......................................................316
11 REFERENCE　DATA..................................................................................324
	11-1　Specifications　for　Attachment.............................................................325

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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