Part of the Yanmar Parts Manuals.
Within the hour you could be under the B30V-1 with a worn roller in one hand, matching it against the exact assembly Yanmar built for that spot. That is the job this parts catalog does: 15 bookmarked pages for the Yanmar B30V-1 crawler backhoe, including the B30V-1(EP) (B6050) variant with the 3TNE82A-B1A engine, publication 000Y00S3690.
The catalog is organized into six sections: Roller and Adjust, Crawler, Hydraulic Oil Pump and Joint, Turning Motor, and the Control Valve in two parts. Each one lists the assemblies, seal kits, gaskets, shafts, and bearings that belong to that system, so you order the right piece the first time instead of guessing from a photo.
When you are alone in the yard with a dead machine and nobody to ask, a correct part number is the difference between waiting and working. Find it, fit it, and get the backhoe digging again.
What's Inside This Yanmar B30V-1, B30V - 1, 3TNE82A - B1A, B30V-1(EP) (B6050) Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Roller & Adjust | 3-4 | Sprocket, Idler, Piston Assy, Roller Assy, Shaft, Bearing |
| Crawler | 5-6 | - |
| Hyd. Oil Pump & Joint | 7-8 | Pump Assy, Coupling, Valve Block Assy, Seal Kit, Oilseal, Gasket |
| Turning Motor | 9-10 | Motor, Valve Asy, Cartridge, Seal Kit, Gear Assy, Pinion |
| Control Valve (1/2) | 11-12 | Valve, Control, Outlet Section, Section, Bucket, Boom |
| Control Valve (2/2) | 13-15 | Section |
Yanmar B30V-1, B30V - 1, 3TNE82A - B1A, B30V-1(EP) (B6050) Common Problems This Manual Covers
Worn rollers, idlers, and sprockets
Undercarriage wear is the most common repair on a crawler backhoe: travel gets rough and the tracks start walking off. The Roller & Adjust section lists the roller assemblies, sprocket, idler, shafts, and bearings so you can order replacements by part number.
Manual Section: Roller & Adjust p. 3Track worn or thrown
Stretched or damaged track on the B30V-1 kills travel performance and accelerates wear on everything it touches. The Crawler section identifies the track components so you replace them as a matched set rather than piecemeal.
Manual Section: Crawler p. 5Hydraulic pump leaking or weak
Weak or erratic hydraulics under load often trace back to a tired pump or leaking seals. The Hyd. Oil Pump & Joint section lists the pump assembly, coupling, valve block assembly, seal kit, oil seal, and gasket needed to reseal or replace it.
Manual Section: Hyd. Oil Pump & Joint p. 7Jerky or leaking swing
A swing that judders or weeps oil usually means worn gear teeth or failed motor seals. The Turning Motor section covers the motor, valve assembly, cartridge, seal kit, gear assembly, and pinion for the swing circuit.
Manual Section: Turning Motor p. 9Boom or bucket drifts down
A loaded boom or bucket that creeps down points to wear inside the control valve. The Control Valve (1/2) section breaks out the boom section, bucket section, and outlet section so you can identify the parts for the affected spool.
Manual Section: Control Valve (1/2) p. 11Arm or blade circuit problems
Sticky or leaking arm, blade, and P.T.O. functions come back to their valve sections. The Control Valve (2/2) section lists the arm, P.T.O., and blade sections of the valve bank for parts identification.
Manual Section: Control Valve (2/2) p. 13Frequently Asked Questions
Which machines does this parts catalog cover?
It covers the Yanmar B30V-1 crawler backhoe, including the B30V-1(EP) (B6050) variant, fitted with the 3TNE82A-B1A engine. The Yanmar publication number is 000Y00S3690.
Is this a repair manual with step-by-step procedures?
No, this is a factory parts catalog. It identifies assemblies and components for the undercarriage, hydraulic pump, turning motor, and control valves so you can order correct replacements. It does not contain repair procedures or specifications.
Does it list seal kits for the hydraulic pump?
Yes. The Hyd. Oil Pump & Joint section lists the pump assembly, coupling, valve block assembly, seal kit, oil seal, and gasket, so you can reseal a leaking pump with the correct parts. p. 7
Can I identify undercarriage parts from this catalog?
Yes. The Roller & Adjust section covers the sprocket, idler, piston assembly, roller assemblies, shafts, and bearings, and the Crawler section covers the track components themselves. p. 3
What do I get after purchasing this?
This is a 15-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.
Are there any print restrictions on this?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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