Part of the Yanmar Repair Manuals.
Chasing a lazy boom on a Yanmar SV18 usually ends at the main relief valve, and this service manual gives you the number to test against: 10.2 MPa system relief pressure, with circuit operation covered for boom, arm, bucket, swing, blade and travel. The hydraulic chapter sits alongside full coverage of the 3TNV70-VBVA2 engine, the electric system with its error code list, undercarriage service standards, and removal and reinstallation procedures for the starter motor, fuel injection pump, fuel tank and radiator.
Yanmar publication MMB25ENMA00100 covers SV18 crawler excavators with serial prefixes YCE0SV18LFBV10378 and YCE0SV18VGBV03493. Across 411 pages you get specifications, tightening torques, pressure adjustment procedures and a troubleshooting chapter.
Guessing a torque on a cylinder head bolt or a track roller is how small jobs become big ones; this book carries the factory figures. Buy it once, download the PDF, and it is yours for the life of the machine.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | 4-15 | Correct Work, Safety Precautions, Preparations, Cautions for Disassembly and Reassembly, Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 16-37 | Specifications, Outline Drawing and Working Area, Weight List of Main Parts, Lifting Capacity List, Specifications for Attachment, Periodic Inspection and Servicing, Fuel |
| Service Standards | 38-65 | Machine Performance, Undercarriage, Controls, Hydraulic Equipment (Hydraulic Cylinders), Implement (Front Attachments, Blade Moving Device) |
| Engine | 66-199 | Safety, Fuel System, Cooling System, Lubrication System, Starter Motor, Alternator, Electric Wiring |
| Electric System | 200-219 | Electric Equipment of Machine (LCD Monitor and Alarm Systems), Circuit Description of Engine Start and Stop (Battery Charge), Error Code List |
| Hydraulic System | 220-313 | Circuit Operation (Boom, Arm, Bucket, Swing, Boom Swing, PTO, Blade, Extend Cylinder, Travel) |
| Adjustment and Repair | 314-348 | Engine and Electric Equipment (Removal Reinstallation: Starter Motor, Fuel Injection Pump, Fuel Tank, Radiator) |
| Troubleshooting | 349-411 | Implements, Non-Breakdowns |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Sprocket mounting bolt torque | 67 to 79 N·m | p. 331 |
| Track roller mounting bolt torque | 67 to 79 N·m | p. 331 |
| Fuel filter filtration area | 432 cm² | p. 25 |
| GO filter replacement interval | Every 500h / Every year | p. 32 |
| Battery type (JIS) | 65B24 | p. 26 |
| Battery voltage - 5 hrs rate capacity | 12-36 V-Ah | p. 26 |
| Air cleaner type | Cyclone type | p. 25 |
| Air cleaner filtration area | 4400 cm² | p. 25 |
| Track tension adjustment type | Grease cylinder | p. 23 |
| Crawler tension clearance H | 60 to 65 mm | p. 332 |
| Radiator fan dimensions | 5 × 290 mm | p. 25 |
| Blade fuse quantity and amperage | 40 x 2, 30 x 1, 25 x 1, 20 x 1, 15 × 2, 10 × 1, 5 × 2 A | p. 26 |
