YANMAR B7-3 SERVICE MANUAL

What does this catalog contain?

YANMAR B7-3 SERVICE MANUAL contains high quality images, diagrams, instructions to help you to operate, maintenance, diagnostic, and repair your machine. This document is printable, without restrictions, contains searchable text and bookmarks for easy navigation.

YANMAR B7-3 SERVICE MANUAL includes:

• Numbered table of contents easy to use so that you can find the information you need fast.
• Detailed sub-steps expand on repair procedure information.
• Numbered instructions guide you through every repair procedure step by step.
• Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
• Notes, cautions and warnings throughout each chapter pinpoint critical information.
• Bold figure number help you quickly match illustrations with instructions.
• Detailed illustrations, drawings and photos guide you through every procedure.
• Enlarged inset helps you identify and examine parts in detail.

What will you get when you get this service catalog?

• After payment has been received, a few minutes later.
• Lifetime PDF and Access To Download (By Request).
• Compatible With Windows, Mac, IOS, Android and Other Systems.
• Searchable Text and Built-in Index For Instant Information Search Bookmarks.
• Printable – Pages Or Entire Manual.
• Zoomable – Detailed Exploded Diagrams, Picture.

TABLE OF CONTENT OF THE YANMAR B7-3 SERVICE MANUAL

GENERAL CAUTIONS FOR MAINTENANCE WORK
1-1 Correct Work ………………………………………………………………………………………………………………………………………………………1-1
1-2 Safety Precautions ………………………………………………………………………………………………………………………………………………1-1
1-3 Preparations……………………………………………………………………………………………………………………………………………………….1-1
1-4 Cautions for Disassembly and Reassembly…………………………………………………………………………………………………………….1-1
1-5 Cautions for Removal and Installation of Hydraulic Equipment ………………………………………………………………………………….1-2
1-6 Cautions for Removal and Installation of Hydraulic Piping…………………………………………………………………………………………1-2
1-7 Cautions for Handling Seals………………………………………………………………………………………………………………………………….1-3
1-8 Correct Installation of Hydraulic Hose…………………………………………………………………………………………………………………….1-3
1-9 Specifications of Hydraulic Hose……………………………………………………………………………………………………………………………1-6
1-10 Air Release of Hydraulic Equipment……………………………………………………………………………………………………………………1-11
CHAPTER 2
TECHNICAL DATA
2-1 Specifications …………………………………………………………………………………………………………………………………………………. 2-1-1
2-2 Outline Drawing and Working Area……………………………………………………………………………………………………………………. 2-2-1
2-2-1 Canopy type …………………………………………………………………………………………………………………………………………… 2-2-1
2-2-2 Cabin type ……………………………………………………………………………………………………………………………………………… 2-2-2
2-3 Weight List of Main Parts …………………………………………………………………………………………………………………………………. 2-3-1
2-4 Lifting Capacity List (For Standard Arm) …………………………………………………………………………………………………………….. 2-4-1
CHAPTER 3
SERVICE STANDARDS
3-1 Machine Performance …………………………………………………………………………………………………………………………………….. 3-1-1
3-2 Engine …………………………………………………………………………………………………………………………………………………………… 3-2-1
3-3 Undercarriage ………………………………………………………………………………………………………………………………………………… 3-3-1
3-3-1 Rubber Crawler Specifications ………………………………………………………………………………………………………………….. 3-3-1
3-3-2 Steel Crawler Specifications……………………………………………………………………………………………………………………… 3-3-2
3-3-3 Common Specifications of Steel & Rubber Crawlers ……………………………………………………………………………………. 3-3-3
3-4 Controls…………………………………………………………………………………………………………………………………………………………. 3-4-1
3-5 Hydraulic Equipment ……………………………………………………………………………………………………………………………………….. 3-5-1
3-5-1 Hydraulic Cylinders …………………………………………………………………………………………………………………………………. 3-5-1
3-6 Implement ……………………………………………………………………………………………………………………………………………………… 3-6-1
3-6-1 Front Attachments …………………………………………………………………………………………………………………………………… 3-6-1
3-6-2 Blade Moving Device……………………………………………………………………………………………………………………………….. 3-6-2
3-6-3 Bucket Teeth ………………………………………………………………………………………………………………………………………….. 3-6-2
3-7 List of Tightening Torque …………………………………………………………………………………………………………………………………. 3-7-1
3-7-1 Machine…………………………………………………………………………………………………………………………………………………. 3-7-1
3-7-2 Engine …………………………………………………………………………………………………………………………………………………… 3-7-4
3-7-3 Tightening Torque for General Bolts and Nuts…………………………………………………………………………………………….. 3-7-4
CHAPTER 4
HYDRAULIC SYSTEM
4-1 Outline…………………………………………………………………………………………………………………………………………………………… 4-1-1
4-1-1 Control Valve Operation …………………………………………………………………………………………………………………………… 4-1-4
4-1-2 Additional Operation of Control Valve ………………………………………………………………………………………………………… 4-1-6

4-2 Hydraulic Circuit Schematic ……………………………………………………………………………………………………………………………… 4-2-1
4-2-1 Standard Specifications……………………………………………………………………………………………………………………………. 4-2-1
4-3 Circuit Operation …………………………………………………………………………………………………………………………………………….. 4-3-1
4-3-1 Boom…………………………………………………………………………………………………………………………………………………….. 4-3-1
4-3-2 Arm……………………………………………………………………………………………………………………………………………………….. 4-3-3
4-3-3 Bucket …………………………………………………………………………………………………………………………………………………… 4-3-5
4-3-4 Swing…………………………………………………………………………………………………………………………………………………….. 4-3-7
4-3-5 Boom Offset …………………………………………………………………………………………………………………………………………… 4-3-9
4-3-6 Blade …………………………………………………………………………………………………………………………………………………… 4-3-11
4-3-7 Travel ………………………………………………………………………………………………………………………………………………….. 4-3-13
4-3-8 Simultaneous Operation of Travel and Boom / Bucket ……………………………………………………………………………….. 4-3-15
4-3-9 Simultaneous Operation of Travel and Arm / Boom Offset ………………………………………………………………………….. 4-3-17
4-3-10 Simultaneous Operation of Boom Up and Arm Retract……………………………………………………………………………… 4-3-19
4-3-11 Simultaneous Operation of Boom Up and Bucket…………………………………………………………………………………….. 4-3-21
4-3-12 Simultaneous Operation of Boom Up and Swing ……………………………………………………………………………………… 4-3-23
4-3-13 Hydraulic P.T.O. ………………………………………………………………………………………………………………………………….. 4-3-25
4-4 Pressure Adjustment ……………………………………………………………………………………………………………………………………….. 4-4-1
4-4-1 Relief Valves ………………………………………………………………………………………………………………………………………….. 4-4-1
4-4-2 Swing Brake Valve ………………………………………………………………………………………………………………………………….. 4-4-3
4-4-3 Cut-off Valve…………………………………………………………………………………………………………………………………………… 4-4-4
CHAPTER 5
HYDRAULIC EQUIPMENT
5-1 Hydraulic Pump………………………………………………………………………………………………………………………………………………. 5-1-1
5-2 Control Valve………………………………………………………………………………………………………………………………………………….. 5-2-1
5-3 Pilot Valve ……………………………………………………………………………………………………………………………………………………… 5-3-1
5-4 Swing Motor …………………………………………………………………………………………………………………………………………………… 5-4-1
5-5 Travel Motor …………………………………………………………………………………………………………………………………………………… 5-5-1
CHAPTER 6
ADJUSTMENT AND REPAIR
6-1 Electric Equipment of the Machine…………………………………………………………………………………………………………………….. 6-1-1
6-1-1 Parts Layout of Electrical Equipment …………………………………………………………………………………………………………. 6-1-1
6-1-2 Monitor and Alarm Systems ……………………………………………………………………………………………………………………… 6-1-4
6-1-3 Wiring Diagram……………………………………………………………………………………………………………………………………….. 6-1-7
6-1-4 Stop Motor Operation ………………………………………………………………………………………………………………………………. 6-1-9
6-1-5 Removal and Reinstallation of Engine ……………………………………………………………………………………………………… 6-1-13
6-1-6 Removal and Reassembly of Starter Motor ………………………………………………………………………………………………. 6-1-22
6-2 Undercarriage ………………………………………………………………………………………………………………………………………………… 6-2-1
6-2-1 Outline …………………………………………………………………………………………………………………………………………………… 6-2-1
6-2-2 Main Parts ……………………………………………………………………………………………………………………………………………… 6-2-1
6-2-3 Points of Reassembly (Rubber Crawler) …………………………………………………………………………………………………….. 6-2-2
6-2-4 Points of Reassembly (Steel Crawler)………………………………………………………………………………………………………… 6-2-3
6-2-5 Disassembly and Reassembly of Steel Crawler…………………………………………………………………………………………… 6-2-4
6-2-6 Disassembly and Reassembly of Idler ……………………………………………………………………………………………………….. 6-2-6
6-2-7 Disassembly and Reassembly of Track Roller…………………………………………………………………………………………….. 6-2-9
6-2-8 Disassembly and Reassembly of Carrier Roller …………………………………………………………………………………………. 6-2-11

Moreover

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle.
• After completing the purchase process, you will receive a message from live support, and the download link will be sent to you within minutes. Additionally, the download process will also be emailed to the backup email address you provided during the purchase.
• Need any other service / repair / parts manual, please feel free to contact info@machinecatalogic.com. We still have 150,000 manuals unlisted.

Find our other Yanmar products.