Part of the Yanmar Parts Manuals.
Need the factory part numbers for your Yanmar VIO40-TW? This 146-page parts catalog PDF (OEM #Y00K3340) maps every component on your mini excavator to its OEM number, section by section. Inside: exploded views for the complete hydraulic circuit, from the main pump and swivel joint through every control valve assembly, plus individual cylinder breakdowns for boom, arm, bucket, swing, and blade. You also get hydraulic piping schematics tracing each line from tank to valve to motor, and the electrical layout covering the harness, battery, and work lamp wiring. When sourcing electrical parts, the catalog confirms the work lamp spec at 12V 55W and lists the harness fuse ratings at 7A and 30A — so you order exactly what fits, not what looks close. Stop squinting at corroded part stampings. Bookmarked for instant navigation; search any component name on your phone right there in the yard.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 14-16 | Labels, Tool Kit, Safety Decals |
| Engine & Electrical Components | 18-32 | Air/Exhaust Pipes, Accelerator Linkage, Engine Mounts, Radiator/Oil Cooler, Fuel Tank/Pipes, Battery, Electrical Harness, Work Lamp |
| Undercarriage | 34-36 | Track Rollers, Idler Adjustment, Rubber Crawler, Travel Motor |
| Operator Controls | 37-48 | Operation Levers, Travel Pedals, Swing Control, Blade Control, PTO Control |
| Frame & Body | 49-66 | Turning Bearing, Frame Covers, Turn Table, Seat Mount, Step, Bonnet, Ducts, Canopy Frame |
| Hydraulic System - Main Components | 67-69 | Hydraulic Pump, Swivel Joint, Hydraulic Oil Tank |
| Hydraulic System - Cylinders | 70-80 | Boom Cylinder, Arm Cylinder, Bucket Cylinder, Swing Cylinder, Blade Cylinder |
| Hydraulic System - Control Valves | 87-106 | P Port Valve, Travel/PTO Valve, Arm/Swing Valve, Boom/Bucket Valve, Turning/Blade Valve, Remote Work Valve, Tributary Valve, Change Over Valve |
| Hydraulic System - Piping | 109-128 | Tank to Pump Piping, Valve to Motor Piping, Return Piping, Control Piping |
| Greasing System | 129-130 | Grease Nipples, Grease Hoses, Remote Greasing Points |
| Attachments | 131-144 | Boom Bracket, Arm Link, Bucket Types, Blade Assembly |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuse amperage | 7A | p. 29 |
| Bulb Specification (Work Lamp) | 12V55W | p. 31 |
| Bulb Specification (General) | 24V- 6W | p. 29 |
| Fuse Rating | B30 | p. 29 |
| Exhaust Pipe Dimension | 7X 225mm | p. 23 |
| O-Ring Dimension (P-type) | 1A P-16.0 | p. 23 |
| Seal Dimension (Roller) | 45 85 8.5 19 | p. 33 |
| Spacer Dimension | 1.6 | p. 107 |
