All 126 pages of this Yanmar YB101, B10 Excavator Parts Catalog (OEM #000Y00K2131) exist for one purpose: getting you the exact part number for every component on your crawler backhoe, whether you're running the YB101-2, YB101UZ(-2), or B10-R. Inside, exploded-view diagrams break every assembly into individually numbered components, from hydraulic oil pump and valve internals down to individual O-rings, seal sets, and spool bolts. You get complete parts listings for all five hydraulic cylinders, the full drivetrain (final case, sprocket, idler, track roller), cab and canopy components, and the entire hydraulic piping network from tank to swivel joint. The preface cross-references machine number ranges across all variants, so you confirm the right part number before placing an order. Your machine is down and the dealer wants a week. Bookmarked by system, searchable by keyword; pull the part number, make the call, get back to work.
What's Inside This Yanmar YB101 / B10 (Crawler Backhoe) Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Preface | 1-3 | Model Identification, Machine Number Ranges, Publication History, Paint Color Codes |
| Specifications | 4 | Dimensions, Weights, Capacities, Performance Data |
| Parts Name | 5 | Major Component Identification, Figure References for Detailed Parts |
| Wiring Diagram | 6 | Electrical Schematics, New Type Wiring, Previous Type Wiring |
| Label (B10) | 7-8 | Set, Operation Label, Key Switch Label, Oil Supply Label |
| Label (Japan Spec.) | 9-10 | Set, Lift Arm Label, Frame Stripe Labels, Model Label |
| Label (Swiss & German Spec.) | 11-12 | Set, Lift Arm Label, Frame Stripe Labels, Model Label |
| Labels (English Spec.) | 13-14 | Label Set, Lift Arm Label, Frame Stripe Labels, Model Label |
| Labels (France Spec.) | 15-16 | Label Set, Lift Arm Label, Frame Stripe Labels, Model Label |
| Tool | 17-18 | Bag, Screwdriver, Wrenches, Pliers, Grease Gun |
| Engine Control | 19-20 | Throttle Cable, Accelerator Lever, Engine Base, Fan Case Cover |
| Engine Mount & Cover | 21-22 | Engine Base, Fan Case Cover, Shock Absorber, Mount Bolts |
| Fuel Tank & Fuel Line | 23-24 | Fuel Oil Tank, Fuel Gauge Unit, Fuel Cap, Fuel Lines |
| Battary & Cable | 25-26 | Battery, Battery Cables, Fuse, Battery Clamp |
| Electric Part | 27-28 | Work Lamp Assembly, Lighting Switch, Lamp, Bulb |
| Work Lamp | 29-30 | Assembly, Boom Light Stay, Bolts, Switch |
| Fianal Case & Sprocket | 31-32 | Final Case, Sprocket, Parallel Pin, Ball Bearing |
| Idler, Track Roller & Crawler | 33-34 | Idler Assembly, Track Roller, Crawler Assembly, Seals |
| Control Equipment (Blade) | 35-38 | Blade Lever Assembly, Knobs, Linkage, Pins, Bushings, Lever Links, Boots, Spring Pins |
| Control Equipment (Operation) | 39-42 | Operation Levers, Rubber Boots, Linkage, Rod Ends, Lever Links, Boots, Knobs, Spring Pins |
| Control Equipment (Drive & Swing) | 43-44 | Drive & Swing Levers, Fulcrums, Linkage, Pins, Bushings |
| Control Equipment (Travel & Swing) | 45-46 | Lock Lever Assembly, Shaft, Knobs, Spring Pins, U-Nuts |
| Operation Lever Stopper | 47-48 | Track Frame, Cover, Weight, Bushings, Bolts |
| Frame | 49-50 | Pinion, Housing, Circlips, Ball Bearing, Revolve Bearing |
| Turning Driving Equipment & Greasing | 51-52 | Turning Lock Pin, Steps, Washers, Box Assembly, Greasing Points |
| Step & Instrument Panel (B10) | 53-54 | Turning Lock Pin, Floor Mat, Steps, Washers, Box Assembly |
| Step & Instrument Panel (Japan) | 55-56 | Turning Lock Pin, Floor Mat, Steps, Washers, Box Assembly |
| Step & Instrument Panel (Export) | 57-58 | Damper, Seat Mount, Cushion Rubber, Pin, Bolts |
| Seat (a) & Seat Mount | 59-60 | Shim, Damper, Cushion Rubber, Pin, Bolts |
| Seat (B) & Arm Rest | 61-62 | Body Assembly, Catch Magnet, Bonnet Assembly, Engine Cover, Sound-Proof Panel |
| Bonnet | 63-64 | Canopy Assembly, Hood, Frame (R) Lower, Frame (L) Lower, Plugs |
| Canopy | 65-66 | Pump Mount, Plug, O-Rings, Bolts, Coupling |
| Hyd. Oil Pump & Pump Mount | 67-68 | Grommet, Rubber, Stand Valve, Front Cover, Side Cover |
| Valve Mount | 69-70 | Cylinder Assembly, Seal Set, Piston, Nipple, Washer |
| Boom Cylinder | 71-72 | Cylinder Assembly, Seal Set, Piston, Nipple, Tube Assembly |
| Arm Cylinder | 73-74 | Cylinder Assembly, Seal Set, Piston, Nipple, Tube Assembly |
| Bucket Cylinder | 75-76 | Cylinder Assembly, Seal Set, Piston, Tube Assembly, Rod Assembly |
| Blade Cylinder | 77-78 | Cylinder Assembly, Seal Set, Piston, Tube Assembly, Rod Assembly |
| Swing Cylinder | 79-80 | Motor Assembly, Valve, Seal Set, O-Rings, Spacer |
| Driving Motor | 81-82 | Motor Assembly, Valve Assembly, Seal Kit, O-Rings, Flange Assembly |
| Turning Motor | 83-84 | Reservoir Assembly, Filter, Cartridge, Rod Filter, Gauge |
| Hydraulic Oil Tank | 85-86 | Swivel Joint Assembly, Liner, Shaft, Hub, Flange |
| Control Valve (P Port & P.T.O) | 89-90 | Section (L) Travel, O-Rings, Seals, Springs, Spool Bolts |
| Control Valve (Drive & Blade) | 91-92 | Arm Section, O-Rings, Seals, Springs, Spool Bolts |
| Control Valve (Arm, Boom & Bucket) | 93-94 | Turning Section, O-Rings, Seals, Springs, Spool Bolts |
| Control Valve (Turning & Swing) | 95-96 | 3rd Valve Assembly, Turnbuckle, Shaft, Bracket, Joint |
| Rd Valve Control | 97-101 | Valve Assembly, Sections, O-Rings, Seals, Springs |
| Control Valve (YB101) | 102-103 | Joint Suction, Port Pump Exh, O-Rings, Connector, Hose |
| Hyd. Oil Piping (Tank-Pump-Valve) | 104-105 | Connectors, O-Rings, Pipes, Bushings, Hoses |
| Hyd. Oil Piping (Valve-Motor, Swing, P.T.O) | 106-107 | Joints, Pipes, O-Rings, Bushings, Grommet |
| Hyd. Oil Piping (Valve-Swivel) | 108-109 | Adaptor, Nipples, Elbows, Joints, O-Rings |
| Hyd. Oil Piping (Return) | 110-111 | Elbows, O-Rings, Joints, Pipes, Grommet |
| Hyd. Oil Piping (Track. Frame) | 112-113 | Clamps, Pipes, Collars, Washers, Bolts |
| Hyd. Oil Piping (Boom) | 114-115 | Pedal, Corrugated Washer, Pin, Link, Hose |
| Rd Valve (B10)(OPTIONAL) | 116-117 | Retainer, Bushings, Pipes, Plugs, Clamps |
| Rd Valve Oil Piping | 118-120 | Pins, Cotter Pins, Shims, Nipples, Washers |
| Boom & Arm | 121-122 | Pins, Cotter Pins, Nipples, Shims |
| Blade | 123-124 | Teeth, Pins, Cotter Pins, Nipples |
| Bucket | 125-126 | Teeth, Pins, Cotter Pins, Nipples |
Yanmar YB101 / B10 (Crawler Backhoe) Common Problems This Manual Covers
Yanmar YB101 crawler excavator loses travel power, tracks pull unevenly, or machine will not track straight p. 81
Inspect the exploded view for the travel system on page 81. Locate the correct driving motor assembly and seal kit part numbers for your serial number. Verify your replacement tracks match the standard track shoe width of 200 mm before ordering.
Manual Section: Driving MotorEngine experiences no power, stalling, or sudden power loss under heavy throttle or load p. 23
Check the fuel system diagram on page 23 to identify replacement fuel filters and lines. Match the fuel gauge unit and cap part numbers to your exact machine configuration. Ensure the replacement tank meets standard operating specs for this 2800 mm transport length machine.
Manual Section: Fuel Tank & Fuel LineHydraulic performance drops, bucket functions feel sluggish, or pump components become noisy and vibrate p. 85
Review the hydraulic oil tank components on page 85. Find the precise part numbers for the reservoir filter, cartridge, and rod filter elements. Order the exact replacement O-rings and seals listed to safely restore the standard 0.03 m³ bucket capacity operation.
Manual Section: Hydraulic Oil TankWeak charging system causes intermittent electrical operation, dead batteries, or unpredictable starting and lighting controls p. 6
Trace the electrical connections using the wiring diagram on page 6. Identify whether your machine uses the new type wiring or previous type wiring harnesses. Locate the exact part numbers for replacement battery cables and fuses to fix voltage drops affecting the 1.5 km/h travel speed.
Manual Section: Wiring DiagramFrequently Asked Questions
What are the replacement specifications for rubber tracks?
The replacement specifications for rubber tracks include a track shoe width of 200 mm. The part number for the CRAWLER ASSY, RUBBER is 172131-38600.
How do you fix crawler excavator that loses travel power, pulls unevenly, or will not track straight?
Inspect the exploded view for the travel system on page 81. Locate the correct driving motor assembly and seal kit part numbers for your serial number. Verify your replacement tracks match the standard track shoe width of 200 mm before ordering.
Which parts do I need if the engine stalls, loses power, or has fuel delivery problems?
Check the fuel system diagram on page 23 to identify replacement fuel filters and lines. Match the fuel gauge unit and cap part numbers to your exact machine configuration. Ensure the replacement tank meets standard operating specs for this 2800 mm transport length machine.
What parts restore hydraulic performance when the bucket feels sluggish or the pump is noisy?
Review the hydraulic oil tank components on page 85. Find the precise part numbers for the reservoir filter, cartridge, and rod filter elements. Order the exact replacement O-rings and seals listed to safely restore the standard 0.03 m3 bucket capacity operation.
How do I fix charging system failures causing dead batteries or unpredictable electrical operation?
Trace the electrical connections using the wiring diagram on page 6. Identify whether your machine uses the new type wiring or previous type wiring harnesses. Locate the exact part numbers for replacement battery cables and fuses to fix voltage drops affecting the 1.5 km/h travel speed.
Document Quality
This document is a scanned PDF, but it includes an OCR layer, so you can search and copy the full text content. The text is generally clear and readable, though not as crisp as a native digital document. Diagrams and illustrations are scanned raster images; they are clear enough for identifying parts and reading labels, but they will show pixelation if zoomed excessively. Pages are mostly clean with minimal scan artifacts or marks, and while some show slight skewing, it does not hinder readability. There are no notable blank or filler pages.
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