This 223-page Yanmar VIO50 parts catalog PDF covers the 1993-1997 VIO50-CR and VIO50-PR crawler excavators (OEM Y00K2912, engine 4TNE88L-RBV). Use the exploded assembly diagrams to identify exact replacement part numbers across 15 assembly groups — from hydraulic cylinders, swing and drive motors, and control valves to undercarriage, cab components, and working equipment. Each diagram maps every component to its Yanmar part number with model-variant columns showing which parts apply to VIO50-CR, VIO50-PR, or both. No repair procedures or torque specifications are included — this is a parts-identification reference for ordering correct OEM replacements.
What's Inside This Yanmar VIO50-CR, VIO50-PR Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| How to Read This Parts Catalog | 1 | Ref. No., Level, Change Mark, Interchangeability Mark, Effective Machine No. |
| Preface | 2 | Catalog History, Model Name, VIO50-CR, VIO50-Pr, Y00K2912 |
| Specifications | 3 | Engine 4TNE88L-Rbv, Bore X Stroke 88x90mm, Travel Speed 4.5/2.3 km/h, Std. Bucket Capacity, Machine Mass |
| Wiring Diagram Parts | 6-19 | Wiring Harness Diagram, Electrical Circuit Layout, Component Locations |
| Decals & Labels | 20-30 | Cabin Label Set, Canopy Label Set, Specification Label, Grease Feed Label, Accel Label, Paint Colors |
| Tool Set | 31 | Cotter Pin, Screwdriver, Filter Wrench, Nozzle, Tool Bag |
| Engine & Cooling System Parts | 32-50 | Exhaust Pipe, Air Cleaner Hose, Accel Lever, Decelerate Kit, Cooler Kit, V-Belt, Radiator Hose, Radiator Mount, Fuel Tank, Fuel Gauge, Fuel Cock |
| Electrical System Parts | 51-70 | Battery Cable, Wiring Harness A/F, Work Lamp, Heater Assembly, Radio/Cassette, Antenna |
| Undercarriage & Travel Parts | 71-88 | Sprocket, Crawler Assembly, Track Frame, Blade Lever, Lower Frame, P.T.O. Kit Frame End |
| Cab & Body Parts | 89-113 | Cover, Duct Assembly, Sash, Acrylic Roof, Door Assembly, Canopy Roof |
| Hydraulic Cylinder Parts | 114-133 | Boom Cylinder, Arm Cylinder, Bucket Cylinder, Swing Cylinder, Blade Cylinder, Seals, Retainer |
| Drive & Swing Motor Parts | 134-141 | Driving Motor Assembly, Turning Motor Assembly, Swivel Joint Assembly |
| Hydraulic Valve & Plumbing Parts | 142-201 | Control Valve Assembly, Remote Control Valve, Multi-Way Valve, Low-High Valve, Unload Valve, Hydraulic Oil Tank, Connectors, O-Rings, Hose Bands, Pipe Joint Bolts |
| Working Equipment Parts | 202-215 | Boom Assembly, Arm Assembly, Bucket 700S, Bucket 450, Bucket Pin Kit, Side Cutters, Tooth Kit |
| Supplemental Labels & P.T.O. Kits | 216-223 | Label Sets, P.T.O. Kit |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine Model | 4TNE88L-RBV | p. 3 |
| Bore x Stroke | 88 x 90 mm | p. 3 |
| Travel Speed (High/Low) | 4.5 / 2.3 km/h | p. 3 |
Yanmar VIO50-CR, VIO50-PR Common Problems This Manual Covers
Yanmar VIO50 crawler back hoe blade down and swing functions suddenly weak or non-functional
Inspect the hydraulic components in the exploded view. Identify the correct gear pump and pressure relief valve part numbers for your specific serial number. Verify your machine uses the 4TNE88L-RBV engine to ensure proper pump fitment before ordering replacement parts.
Manual Section: Hydraulic Parts DiagramStarter will not turn over even after jumping the solenoid during morning cold starts
Trace the starter circuit in the diagram. Locate the relay safety solenoid and starter motor part numbers. Confirm your equipment matches the 88 x 90 mm bore and stroke engine specification to guarantee you select the compatible starting system components.
Manual Section: Wiring DiagramObstructed foot pedal or poorly adjusted cable operation preventing full machine track speed
Examine the cab linkage breakdown. Find the exact part numbers for the low-high pedal and control cables. Make sure your linkage can support shifting between the 4.5 / 2.3 km/h travel speeds before ordering new brackets or hardware.
Manual Section: Cab & Interior Parts DiagramHeavy oil leak dripping down from the main boom or stick hydraulic hoses
Inspect the boom and attachment breakdown. Locate the specific hydraulic hose and fitting part numbers for the leaking circuit. Ensure your replacement lines match the flow requirements of the 4TNE88L-RBV engine to prevent future blowouts under load.
Manual Section: Boom & Attachment Parts DiagramFrequently Asked Questions
How do I find the right hydraulic pump part number for a Yanmar VIO50?
Open the Hydraulic Valve & Plumbing Parts section (pages 142-201). Locate the exploded view of the gear pump assembly and read the part number from the column that matches your model variant (VIO50-CR or VIO50-PR) and serial number range. Use the Change Mark and Effective Machine No. columns to confirm the correct superseded or current part number for your unit.
How do I identify the correct starter motor or solenoid part number for my VIO50?
Go to the Electrical System Parts section (pages 51-70). Find the wiring harness diagram page and locate the starter motor and relay solenoid in the exploded view. The part number column for your serial number range will show the correct OEM number to order from your Yanmar dealer.
Which part numbers cover the boom and arm cylinder seals on the VIO50-CR vs VIO50-PR?
The Hydraulic Cylinder Parts section (pages 114-133) lists boom, arm, bucket, swing, and blade cylinders with separate columns for VIO50-CR and VIO50-PR variants. Each seal kit, retainer, and O-ring row shows the applicable model column so you can confirm the correct seal set before ordering.
How do I order the correct undercarriage parts — sprocket, track chain, or crawler assembly?
See the Undercarriage & Travel Parts section (pages 71-88). The exploded views show the sprocket, crawler assembly, lower frame, and blade lever with individual part numbers. Verify the part numbers against your serial number using the Effective Machine No. column in the catalog header.
How will I receive this Yanmar VIO50 Parts Catalog?
Instant PDF download. You receive the full 223-page searchable parts catalog immediately after payment. Open it on any device — laptop, tablet, or phone.
Am I able to print pages from this Yanmar VIO50 parts catalog?
Yes. No DRM or copy protection. Print any section or the entire catalog on any printer.
Are wiring and hydraulic diagrams included in this parts catalog?
Yes — wiring diagram parts (pages 6-19) and hydraulic valve/plumbing parts (pages 142-201) are included as parts-identification diagrams showing component locations and part numbers. This is a parts catalog, not a service manual — it does not include repair procedures or torque specifications.
Reviews
There are no reviews yet.