Takeuchi TB225 Mini Excavator Parts Manual (BD8Z012-0-0) (SN 122600003-)
Out on small sites, this TB225 usually lives in tight trenches, around foundations, and along driveways—places where you’re chewing dirt all day and bouncing off rocks and concrete. This parts manual helps you trace every assembly on the machine back to the exact piece you need, instead of guessing at “that little washer on the swing motor.” Say you’ve got the track sagging on one side and find a blown carrier roller; this book lets you isolate the right roller style by serial range, then match the seals and hardware without tearing it down twice.
Applications & Use Cases
- Track down which snap ring or shim belongs in a specific spot in the travel motor or final drive before you split it on the bench.
- Verify what changed at a certain serial break, so you don’t order an older style track roller or idler that won’t align or route correctly.
- Trace hydraulic line routing to inspect for the right hose, clamps, and fittings when you’ve got a leak buried under the upper frame.
- Isolate boom, arm, and bucket pin sets and test your parts order against the diagram so everything actually fits when you go to re-pin it.
- Check small hardware—seals, O-rings, spacers—so you can rebuild a cylinder or valve stack once, not chase missing bits mid-job.
FAQ
Q: Is this something I can search on a laptop, or is it just a scan of the book?
A: It’s typically a PDF you can search by part name or number, so you can jump straight to the group you’re working on.
Q: Can I print just the pages I need to take to the machine?
A: Yeah, you can usually print specific sections, then mark and grease-stain those instead of wrecking your main copy.
Safety Note
Always bleed off hydraulic pressure and secure the boom and attachment before you start pulling lines or components you’ve identified in the manual.
Takeuchi TB225 Mini Excavator Index:
- UNDERCARRIAGE 1
- LOWER FRAME 2
- CRAWLER BELT 4
- CARRIER ROLLER 6
- TRACK ROLLER (122600003~TBA) 8
- TRACK ROLLER (TBA-) 10
- FRONT IDLER 12
- TRACK ADJUSTER 14
- TRAVEL DEVICE 16
- SLEW BEARING 18
- SWIVEL JOINT & ACCESSORIES 20
- DOZER BLADE 22
- PIPING; LOWER 24
- TURNTABLE & CONTROL LEVER 26
- SLEWING DEVICE 27
- TURNTABLE (1/2) 30
- TURNTABLE (2/2) 32
- BOOM SWING 34
- SWING STOPPER 36
- TRAVEL LEVER-1 38
- TRAVEL LEVER-2 40
- TRAVEL LEVER (retractable travel pedals)-1 42
- TRAVEL LEVER (retractable travel pedals)-2 44
- PIPING; OPERATION LEVER-1 48
- PIPING; OPERATION LEVER-2 52
- PIPING; OPERATION LEVER-3 54
- ENGINE & ELECTRICAL SYSTEM 56
- ENGINE & ACCESSORIES (1/3) 57
- ENGINE & ACCESSORIES (2/3) 62
- ENGINE & ACCESSORIES (3/3) 64
- AIR CLEANER (for double element) 68
- CONTROL BOX (R.H.) 70
- CONTROL BOX (L.H.)-1 74
- CONTROL BOX (L.H.)-2 78
- ENGINE CONTROL 82
- ELECTRICAL-1 84
- ELECTRICAL-2 86
- ELECTRICAL-3 90
- TRAVEL ALARM 91
- GPS DEVICE 94
- BATTERY 96
- HYDRAULIC PIPING & TANK 98
- GREASE PIPING 99
- VALVE & ACCESSORIES (1/2)-1 102
- VALVE & ACCESSORIES (1/2)-2 106
- VALVE & ACCESSORIES (1/2)-3 110
- VALVE & ACCESSORIES (2/2)-1 112
- VALVE & ACCESSORIES (2/2)-2 116
- ACCUMULATOR 120
- PIPING; UPPER-1 122
- PIPING; UPPER-2 124
- PIPING; UPPER-3 128
- PIPING; UPPER-4 130
- PIPING; UPPER-5 132
- PUMP DRIVE 134
- HYDRAULIC TANK 136
- FUEL TANK & FUEL PIPING (1/2) (122600003-122600765)-1 140
- FUEL TANK & FUEL PIPING (1/2) (122600003-122600765)-2 144
- FUEL TANK & FUEL PIPING (1/2) (122600766-)-1 148
- FUEL TANK & FUEL PIPING (1/2) (122600766-)-2 152
- FUEL TANK & FUEL PIPING (2/2) (122600003-122600765)-1 156
- FUEL TANK & FUEL PIPING (2/2) (122600003-122600765)-2 158
- FUEL TANK & FUEL PIPING (2/2) (122600766-) 160
- COVER & CAB 162
- COVER (1/4) 163
- COVER (2/4) (engine hood) 168
- COVER (3/4) (side cover; L.H.) 170
- COVER (4/4) (side cover; R.H.) 172
- FLOOR FRAME 174
- FLOOR MAT 176
- SEAT (1/2) 178
- SEAT (2/2) 180
- CANOPY 182
- SWITCH 186
- HOE ATTACHMENT 188
- BOOM (1/2) 189
- BOOM (2/2) 194
- ARM (1/2) 196
- ARM (2/2) 198
- DECAL & TOOL 200
- DECAL (English)-1 201
- DECAL (English)-2 206
- DECAL (French)-1 210
- DECAL (French)-2 214
- DECAL (grip button) (122600003-122600087) 218
- DECAL (grip button) (122600088-) 220
- DECAL (breaker) (122600003-122600071) 222
- DECAL (selector valve) 224
- DECAL (GPS) 226
- PAINTED COLOR 228
- SERVICE TOOL 230
- HYDRAULIC DEVICE 232
- SWIVEL JOINT 233
- CONTROL VALVE 236
- BLOCK ASSY; No. 1 238
- BLOCK ASSY; No. 2 240
- BLOCK ASSY; No. 3 242
- BLOCK ASSY; No. 4 244
- BLOCK ASSY; No. 5 246
- BLOCK ASSY; No. 6 248
- BLOCK ASSY; No. 7 250
- BLOCK ASSY; No. 8 252
- BLOCK ASSY; No. 9 254
- BLOCK ASSY; No. 10 256
- BLOCK ASSY; No. 11 258
- BLOCK ASSY; No. 12 260
- BLOCK ASSY; No. 13 262
- BLOCK ASSY; No. 14 264
- PILOT VALVE (R.H.) (3-switch type) 266
- HANDLE (R.H.) (3-switch type) 268
- PILOT VALVE (L.H.) (3-switch type) 270
- HANDLE (L.H.) (3-switch type) 272
- SELECTOR VALVE (A-G pattern) 274
- SOLENOID VALVE; 1 BLOCK 276
- SOLENOID VALVE; 2 BLOCKS 1 278
- SOLENOID VALVE; 2 BLOCKS 2 280
- REMOTE CONTROL VALVE (travel) 282
- REMOTE CONTROL VALVE (swing) 284
- BOOM CYLINDER 286
- ARM CYLINDER 288
- BUCKET CYLINDER (122600003~122300765) 290
- SWING CYLINDER 292
- DOZER BLADE CYLINDER 294
- SPAN CYLINDER 296
- TRAVEL MOTOR-1 298
- TRAVEL MOTOR-2 302
- TRAVEL MOTOR-3 306
- SLEW MOTOR-1 310
- SLEW MOTOR-2 312
- SLEW MOTOR-3 314
- SLEW MOTOR-4 316
- HYDRAULIC PUMP 318
- ENGINE – YANMAR 3TNV80F-SPTB SN 122600003- 320
- Fig1.CYLINDER BLOCK 321
- Fig2.GEAR HOUSING 324
- Fig3.FLYWHEEL HOUSING & OIL SUMP 326
- Fig4.CYLINDER HEAD & BONNET 328
- Fig5.EXHAUST MANIFOLD & SILENCER 332
- Fig6.CAMSHAFT & DRIVING GEAR 334
- Fig7.CRANKSHAFT & PISTON 336
- Fig8.HYDRAULIC PUMP 338
- Fig9.LUB. OIL SYSTEM 340
- Fig10.COOLING WATER SYSTEM 342
- Fig11.FUEL INJECTION PUMP 344
- Fig12.GOVERNOR 346
- Fig13.FUEL INJECTION VALVE 348
- Fig14.STARTER MOTOR 350
- Fig15.GENERATOR 352
- Fig16.ACCESSORY 354
- Fig17.GASKET SET 358
- KITS, ATTACHMENTS & QUICK REFERENCE 360
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