Tracking down exact replacement components for your excavator is simple with this 185-page Yanmar VIO50-6B Parts Catalog PDF (OEM #0CK50-M01440EN). Inside, you get highly detailed exploded views of every major system, from the complete turning motor assembly down to the individual undercarriage track rollers. Open up the factory parts lists to find exact OEM part numbers, hardware cross-references, and clear component identification for your entire crawler back-hoe. Verify you are ordering the correct 7x225 mm radiator hose, or confirm the main engine harness requires an 80A slow-blow fuse before calling the parts counter. Ordering the wrong hardware keeps your machine dead in the dirt for days. Download this bookmarked file directly to your tablet, search for the exact component, and get your parts ordered right the first time.
What's Inside This Yanmar VIO50-6B Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Accelerator, Fuel Tank, Fuel Piping, Fuel Filter | |
| Cooling System | Radiator Shroud, Radiator & Sub Tank, Radiator Hose | |
| Engine | Muffler, Muffler Cover, Turning Bearing | |
| Electrical System | Harness Support, Battery, Horn, Harness Guide, Starter Switch, Pressure Switch, Work Lamp, Canopy Lamp, Solenoid Valve | |
| Hydraulics & 3-Point Hitch | Quick Coupler, Valve Mount, Hydraulic Pump Mount, Hydraulic Pump, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Swing Cylinder, Blade Cylinder, Hitch Cylinder, Control Valve, Remote Control Valve, Way Valve, Tank - Pump & Control Valve, Control Valve - Turning Motor, Control Valve - Return & Drain | |
| Body & Operator Station | Around the Seat, Link Cover, Pedal Cover, Travel Frame, Crawler Guard, Turning Frame, Cover, Upper Cover, Frame Guard, Step, Seat Mount, Seat, Bonnet, Canopy, Canopy Mount, Cabin | |
| Decals & Accessories | Label, Tool Box | |
| Other Components | Reference Materials, Engine Mount, Duct, Around the Engine, Travel Alarm, Instrument Panel, Gps, Air Conditioner, Sprocket, Idler & Adjust, Track Roller, Carrier Roller, Iron Crawler, Rubber Crawler, Travel Pedal, Travel Lever |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Radiator hose dimension | 7x225 mm | p. 23 |
| Engine fuse rating (Slow Blow) | 80A | p. 29 |
| Work lamp bulb power | 12V 55W | p. 39 |
| Air conditioner engine related bearing type | 6203UUC3 | p. 48 |
| Turning frame bush dimension | 90x90 mm | p. 116 |
| Cabin door screw dimension (SEMS) | 5x16 B | p. 103 |
| Boom cylinder seal kit dimension | 95x50 mm | p. 116 |
| Swivel joint O-ring dimension | 1BP56.0 | p. 127 |
| Boom bracket dust seal dimension | 90x105x6 mm | p. 159 |
| Bucket bolt dimension | M16x40 1.5 | p. 164 |
Yanmar VIO50-6B Common Problems This Manual Covers
Yanmar VIO50-6B loss of power and stalling from suspected fuel starvation or clogged filters p. 28
Inspect the fuel filter bracket assembly on page 28 to find the exact filter element part number. Check the harness on page 29 to replace the 80A slow blow engine fuse if the fuel system loses electrical power. Order matching replacement hoses and clamps to prevent air leaks.
Manual Section: Fuel FilterCan't find the correct hydraulic seal kit part number for a leaking boom cylinder p. 116
Review the boom cylinder exploded view on page 116 to locate the correct replacement seal kit. Verify your specific cylinder requires the 95x50 mm dimension seal kit before ordering. Match the rod assembly and piston assembly part numbers to ensure complete compatibility during your rebuild.
Manual Section: 104.Boom CylinderTracks do not run straight or machine pulls to one side during travel operations p. 127
Check the swivel joint parts breakdown on page 127 to identify the required replacement seals. Order the specific 1BP56.0 dimension O-ring to properly seal the internal fluid passages. Replace the hub and flange spacers at the same time if you observe severe wear on the shaft assembly.
Manual Section: 113.Swivel JointExcessive play in the bucket linkage and missing hardware at the main attachment points p. 164
Examine the bucket components on page 164 to find the correct replacement hardware. Order the exact M16x40 1.5 dimension bolts to secure the linkage properly. Replace worn bucket pins and check the implement plug at the same time to restore tight tolerances to the front attachment.
Manual Section: 150.BucketCab door rattles constantly and hinge mounting hardware is missing or stripped out p. 103
Inspect the cabin door diagram on page 103 to identify the required replacement fasteners. Order the specific 5x16 B dimension SEMS screws to properly secure the door hinges and latch hardware. Replace the door pins and washers simultaneously to eliminate excessive vibration during operation.
Manual Section: Cabin Door(1)Frequently Asked Questions
What are the replacement specifications for fuel filters?
The replacement specification for the fuel filter is identified by Part No. 129907-55810. This part number can be found in the '19. FUEL FILTER' section of the parts catalog.
How do you fix yanmar VIO50-6B loss of power and stalling from suspected fuel starvation or clogged filters?
Inspect the fuel filter bracket assembly on page 28 to find the exact filter element part number. Check the harness on page 29 to replace the 80A slow blow engine fuse if the fuel system loses electrical power. Order matching replacement hoses and clamps to prevent air leaks.
How do you fix can't find the correct hydraulic seal kit part number for a leaking boom cylinder?
Review the boom cylinder exploded view on page 116 to locate the correct replacement seal kit. Verify your specific cylinder requires the 95x50 mm dimension seal kit before ordering. Match the rod assembly and piston assembly part numbers to ensure complete compatibility during your rebuild.
How do you fix tracks do not run straight or machine pulls to one side during travel operations?
Check the swivel joint parts breakdown on page 127 to identify the required replacement seals. Order the specific 1BP56.0 dimension O-ring to properly seal the internal fluid passages. Replace the hub and flange spacers at the same time if you observe severe wear on the shaft assembly.
How quickly can I access this manual after buying?
Instant PDF download. You get the full 185-page searchable Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Am I able to print pages from this manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
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