Tracking down the right components for your wheel-backhoe is simple with this 252-page parts catalog PDF, covering both the base model and variants. Inside, you get detailed exploded views mapping out every system from the steering column down to the hypoid gears in the carrier assembly. Open up the hydraulic sections to find complete seal sets, piston rings, and hose routings for the boom, arm, and outrigger cylinders. Find the exact OEM number for the PT1/8 grease nipple on the backhoe lock, or confirm you are ordering the correct M10X20 washer bolt for the operator seat mount. Quit ordering the wrong replacement components. This bookmarked file opens instantly on your phone, so you can match part numbers right at the machine and get your order placed.
What's Inside This Yanmar YB401W Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Label | 7-22 | Set, Grease, Stripe, Model, Specification, Danger |
| Tool & Tool Box | 23-24 | Tool Assy, Wrench, Driver, Screw, Bar Wrench, Gun, Grease |
| Rear View Mirror | 25-26 | Stay, Back Mirror, Mirror, Bolt, Nut |
| Engine Control | 27-28 | Pedal Assy, Accel, Cable, Throttle, Knob, Lever, Link, Spool |
| Engine Mount | 29-30 | Support, Engine, Bracket, Absorber, Shock |
| Radiator Mount | 31-32 | - |
| Fuel Tank & Fuel Pipe | 33-34 | - |
| Battery & Clamp | 35-36 | - |
| Wiring | 37-42 | Lead Wire, Harness, Clamp, Link, Fusible, Grommet |
| Electric Part | 43-48 | - |
Yanmar YB401W Common Problems This Manual Covers
Can't find the main wiring harness part numbers for a Yanmar YB401W with intermittent electrical faults p. 37
Check the wiring exploded view on page 37. Identify the main harness, lead wires, and fusible links for your specific machine. Secure the new harness routing using replacement M10X20 bolts where mounted to the chassis frame to prevent vibration damage.
Manual Section: WiringNeed the exact seal kit and pin bush part numbers for a leaking arm cylinder dropping overnight p. 150
Inspect the hydraulic parts diagram on page 150. Locate the specific seal set, piston ring, and pin bush part numbers for the arm cylinder assembly. Order the necessary M8X16 bolts and 8mm washers for the line clamps to complete the reseal job properly.
Manual Section: Arm CylinderStruggling to locate replacement floor mats and mounting hardware for rusted and vibrating interior cover panels p. 121
Review the interior cover parts list on page 121. Find the correct part numbers for the left panel and replacement floor mat. Order the required polished 8mm washers and M8X16 bolts to secure the new floor plates tightly to the cab frame.
Manual Section: Cover, InteriorLooking for the right side cutter and teeth assembly part numbers for a worn out bucket p. 226
Examine the boom and attachment parts diagram on page 226. Identify the exact bucket assembly, side cutters, and teeth assembly part numbers for your application. Verify the required M10X20 mounting bolts and 10mm spring washers needed to secure the new ground engaging tools.
Manual Section: BucketFrequently Asked Questions
How do you fix can't find the main wiring harness part numbers for a wheel-backhoe with intermittent electrical faults?
Check the wiring exploded view on page 37. Identify the main harness, lead wires, and fusible links for your specific machine. Secure the new harness routing using replacement M10X20 bolts where mounted to the chassis frame to prevent vibration damage.
How do you fix need the exact seal kit and pin bush part numbers for a leaking arm cylinder dropping overnight?
Inspect the hydraulic parts diagram on page 150. Locate the specific seal set, piston ring, and pin bush part numbers for the arm cylinder assembly. Order the necessary M8X16 bolts and 8mm washers for the line clamps to complete the reseal job properly.
How do you fix struggling to locate replacement floor mats and mounting hardware for rusted and vibrating interior cover panels?
Review the interior cover parts list on page 121. Find the correct part numbers for the left panel and replacement floor mat. Order the required polished 8mm washers and M8X16 bolts to secure the new floor plates tightly to the cab frame.
How do you fix looking for the right side cutter and teeth assembly part numbers for a worn out bucket?
Examine the boom and attachment parts diagram on page 226. Identify the exact bucket assembly, side cutters, and teeth assembly part numbers for your application. Verify the required M10X20 mounting bolts and 10mm spring washers needed to secure the new ground engaging tools.
Is this Parts Catalog a digital download?
This is a 252-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Am I able to print pages from this manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Does this Parts Catalog have electrical diagrams?
Yes. You'll find an electrical wiring diagram covering the main wiring layout.
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