This 493-page Takeuchi TB125 parts manual PDF (OEM #BE5Z010) is the factory parts catalog for your hydraulic excavator, matching every part number to an exploded view from crawler belt to bucket pins. Illustrated breakdowns cover the undercarriage (track rollers, front idler, track adjuster), slewing device and turntable, engine and electrical system, hydraulic piping and tank, covers and cab, plus the full hoe attachment: boom, arm, telescopic arm, and buckets. Hydraulic components get their own section: control valve block assemblies, every cylinder, travel and slew motors, and the pump, broken down to individual seals and O-rings. Serial splits are printed on each affected assembly, so a machine in the 12510009-12514525 range pulls a different turntable listing than one after 12514526. Ordering the wrong seal kit twice gets old fast. Bookmarked with a live text layer: type the part name, jump to the diagram, order it right the first time.
What's Inside This Takeuchi TB125 Parts Manual
| System | Pages | Key Topics |
|---|
| Undercarriage | 16-49 | Lower Frame, Crawler Belt, Crawler Belt (with Rubber Pads), Carrier Roller (12510009-12513451), Carrier Roller (12513452-), Track Roller, Front Idler, Track Adjuster |
| Turntable & Control Lever | 50-101 | Slewing Device, Turntable (12510009-12514525), Turntable (12514526-), Boom Swing (12510009-12514525), Boom Swing (12514526-), Swing Stopper, Travel Lever, Swing Pedal |
| Engine & Electrical System | 102-159 | Engine & Accessories (12510009-12514525), Engine & Accessories (12514526-) |
| Hydraulic Pipng & Tank | 160-203 | Grease Piping, Valve & Accessories, Piping; Upper (12510009-12512125), Piping; Upper (12512126-12514525) |
| Cover & Cab | 204-279 | Cover (12510009-12514525), Cover (12514526-), Cover (Engine Hood), Cover (Front Cover), Floor Frame, Seat Box (12510009-12514525), Seat Box (12514526-) |
| Hoe Attachment | 280-314 | Boom (12510009-12514525), Boom (12514526-), Arm, Telescopic Arm, Bucket 1, Bucket 2, Bucket (for U.S.A.; 12510009-1251#) |
| Decal & Tool | 315-369 | Decal (Canopy) (12510009-12514525), Decal (Canopy) (12514526-), Decal (Cab) (12510009-12514525), Decal (Cab) (12514526-), Decal (for Japan) (12510009-12514525) |
| Hydraulic Device | 370-467 | Swivel Joint (12510009-12514525), Swivel Joint (12514526-), Control Valve, Block Assy; No. 1, Block Assy; No. 2, Housing Assy, Block Assy; No. 3, Block Assy; No. 4 |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Engine variants covered | 3TNE82A-TB / 3TNE82A-ETB | p. 103 |
| Bulb rating | 14V, 1.4W | p. 117 |
| Slewing device shim thickness (selective) | 1.2mm / 2.0mm / 3.2mm | p. 193 |
| Turntable shim thickness (selective) | 2.3mm / 4.5mm | p. 209 |
| Boom pivot shim thickness (selective) | 0.2mm / 0.5mm | p. 282 |
