Takeuchi TL150 Track Loader Parts Manual (BT7Z012-6-0) (SN 21500004-)

Out on a construction site or in a muddy demo lot, the TL150 is usually pushing dirt, loading trucks, and clawing around in tight spots where it eats rocks and debris all day. This parts manual helps you trace every assembly on that loader down to the exact washer, snap ring, or seal, so you don’t guess at parts and lose days waiting on returns. Say you’ve got the right side track sagging and find a damaged idler and a mystery snap ring in the mud—this book lets you isolate that undercarriage section, identify the sub-assembly, and verify which ring and seals you actually need before you call the dealer.

Applications & Use Cases

• Track the part-number logic so you can see what changed between early and later TL150 builds and order what actually fits your serial.
• Break down big assemblies—like the travel motor or track adjuster—into sub-components, then inspect and test what’s worth replacing while it’s already apart.
• Route hoses and lines correctly after a teardown by checking the exploded views instead of guessing and crossing circuits.
• Check hardware sizes visually so you can pull the right bolts and pins from stock without trial-and-error.
• Verify superseded numbers with your dealer by matching the old callout to the new listing.

FAQ

Q: Is this a searchable PDF or just scanned pages?

A: It’s typically a PDF you can search by part name or number, so you can jump straight to what you’re working on.

Q: Can I print just the sections I need for the jobsite?

A: Yes, most folks print the key systems—like undercarriage or hydraulics—so they can mark them up in the shop without trashing the whole manual.

Safety Note

Always bleed off hydraulic pressure and support raised components mechanically before you reach in to inspect or remove any parts.

Takeuchi TL150 Track Loader Index:

• UNDERCARRIAGE 1
• TRACK ROLLER A 2
• TRACK ROLLER B 4
• FRONT IDLER 6
• TRACK ADJUSTER (21500004-21500273) 8
• TRACK ADJUSTER (21500274-) 10
• TRAVEL DEVICE (21500004-21501995) 12
• TRAVEL DEVICE (21502001-) 14
• CRAWLER BELT 16
• MAIN FRAME & CONTROL LEVER 18
• FRAME (1/2) 19
• ARM STOPPER 22
• HOOK 24
• OPERATION LEVER & STAND 26
• PIPING; OPERATION LEVER (1/2) (21500004-21502000) 28
• PIPING; OPERATION LEVER (1/2) (21502001-) 30
• PIPING; OPERATION LEVER (2/2) 32
• ENGINE & ELECTRICAL SYSTEM 36
• ENGINE & ACCESSORIES (1/2) 37
• ENGINE & ACCESSORIES (2/2) (21500004-21500627) 44
• ENGINE & ACCESSORIES (2/2) (21500628-21505096) 48
• ENGINE & ACCESSORIES (2/2) (21505097-) 54
• ENGINE & ACCESSORIES (1/2) (high flow; 21501587-) 58
• ENGINE & ACCESSORIES (2/2) (high flow; 21501587-21501772) 60
• ENGINE & ACCESSORIES (2/2) (high flow; 21501773-) 66
• PRECLEANER (for US) 72
• DRAIN PLUG 74
• PULLEY (for air conditioner) 76
• CONTROL BOX; R.H. 78
• CONTROL BOX; R.H. (high flow) 82
• CONTROL BOX; L.H. 85
• ENGINE CONTROL (21500004-21500627) 88
• ENGINE CONTROL (21500628-) 90
• ELECTRICAL (1/2) (21500004-21500201) 92
• ELECTRICAL (2/2) (21500004-21500201) 94
• ELECTRICAL (1/2) (21500202-21500471) 96
• ELECTRICAL (2/2) (21500202-21500471) 100
• ELECTRICAL (1/2) (21500472-21501227) 103
• ELECTRICAL (1/2) (21501228-) 108
• ELECTRICAL (2/2) (21500472-21500783) 114
• ELECTRICAL (2/2) (21500784-) 117
• ELECTRICAL (cab) 120
• ELECTRICAL (high flow) 122
• BATTERY (21500004-21500201) 124
• BATTERY (21500202-) 126
• REAR LAMP 130
• MAINTENANCE LIGHT SOCKET 132
• ROOM LAMP 134
• WINDOW WASHER 136
• HYDRAULIC PIPING & TANK 138
• VALVE & ACCESSORIES 139
• PIPING (1/2) (21500004-21500297) 146
• PIPING (1/2) (21500298-) 150
• PIPING (1/2) (high flow; 21500004-21501586) 154
• PIPING (1/2) (high flow; 21501587-) 160
• PIPING (2/2) (21500004-21502000) 166
• PIPING (2/2) (21502001-) 168
• PIPING (2/2) (high flow; 21502001-) 170
• PUMP DRIVE 172
• PUMP DRIVE (high flow) 176
• HYDRAULIC TANK 178
• FUEL TANK & FUEL PIPING (21500004-21500627) 180
• FUEL TANK & FUEL PIPING (21500628-) 186
• FUEL TANK & FUEL PIPING (high flow; 21502751-) 194
• COVER & CAB 202
• COVER (1/3) (21500004-21500131) 203
• COVER (2/3) (rear door; 21500004-21500131) 208
• COVER (3/3) (engine hood; 21500004-21500131) 210
• COVER (1/3) (21500132-21500627) 212
• COVER (2/3) (rear door; 21500132-21500627) 216
• COVER (3/3) (engine hood; 21500132-21500257) 220
• COVER (3/3) (engine hood; 21500258-21500627) 222
• COVER (1/3) (21500628-21504103) 224
• COVER (1/3) (21504104-) 228
• COVER (2/3) (rear door; 21500628-) 232
• COVER (2/3) (high flow, rear door; 21500628-21501586) 236
• COVER (3/3) (engine hood; 21500628-) 238
• COVER (1/3) (high flow; 21501587-21504103) 240
• COVER (1/3) (high flow, for US; 21504104-) 244
• COVER (1/3) (high flow, for EU; 21502751-) 248
• COVER (2/3) (high flow, rear door; 21501587-) 252
• COVER (3/3) (high flow, engine hood; 21501587-) 254
• FLOOR FRAME (21500004-21500627) 256
• FLOOR FRAME (21500628-21503755) 258
• FLOOR FRAME (21503756-21503875) 262
• FLOOR FRAME (21503876-) 266
• SEAT (1/2) 270
• SEAT (2/2) 272
• SEAT SWITCH 274
• SAFETY BAR 276
• CANOPY (1/2) (21500004-21500749) 278
• CANOPY MOUNT (21500750-) 282
• CANOPY (1/3) (21500750-) 284
• CANOPY (2/3) (21500750-) 288
• CANOPY (3/3) (21500750-) 290
• CAB MOUNT (21500750-) 292
• CAB (1/6) (21500750-) 294
• CAB (2/6) (21500750-) 296
• CAB (3/6) (21500750-) 300
• CAB (4/6) (21500750-) 304
• CAB (5/6) (21500750-) 306
• CAB (6/6) (front door; 21500750-) 308
• CAB KIT (1/5) (for US; 21500750-) 312
• CAB KIT (2/5) (for US, front door; 21500750-) 316
• CAB KIT (3/5) (for US; 21500750-) 320
• CAB KIT (4/5) (for US; 21500750-) 324
• CAB KIT (5/5) (for US; 21500750-) 326
• REAR MIRROR 328
• REARVIEW MIRROR (21500004-21500749) 330
• MANUAL STORAGE (21500004-21500749, 21502751-) 332
• AIR CONDITIONER (1/5) (compressor) 334
• AIR CONDITIONER (2/5) (condenser; 21500004-21503623) 338
• AIR CONDITIONER (2/5) (condenser; 21503624-) 340
• AIR CONDITIONER (3/5) (air conditioner unit) 342
• AIR CONDITIONER (4/5) 346
• AIR CONDITIONER (5/5) 348
• ATTACHMENT 350
• ARM 351
• QUICK ATTACHMENT 356
• PIPING; ARM (21500004-21501245) 358
• PIPING; ARM (1/2) (21501246-) 362
• PIPING; ARM (2/2) (21501246-) 366
• PIPING; ARM (1/2) (high flow; 21500004-21501586) 370
• PIPING; ARM (2/2) (high flow; 21500004-21501586) 374
• PIPING; ARM (1/2) (high flow; 21501587-) 376
• PIPING; ARM (2/2) (high flow; 21501587-) 380
• REAR AUXILIARY LINE 384
• REAR AUXILIARY LINE (high flow) 386
• DECAL & TOOL 388
• DECAL (canopy)-1 389
• DECAL (canopy)-2 398
• DECAL (cab)-1 406
• DECAL (cab)-2 414
• DECAL (high flow) 422
• TOOL & ACCESSORIES 424
• PAINTED COLOR 426
• HYDRAULIC DEVICE 428
• CONTROL VALVE 429
• INLET HOUSING ASSY 432
• BLOCK ASSY; No. 1 434
• BLOCK ASSY; No. 2 436
• BLOCK ASSY; No. 3 438
• CONTROL VALVE (high flow) 440
• SELF LEVEL VALVE 442
• PILOT VALVE (R.H.) (21500004-21503485) 444
• PILOT VALVE (R.H.) (21503486-) 446
• PILOT VALVE (L.H.) (21500004-21500178, 21500262-21503485) 448
• PILOT VALVE (L.H.) (21500179-21500261) 450
• PILOT VALVE (L.H.) (21503486-) 452
• SUB VALVE 454
• REMOTE CONTROL VALVE 456
• LIFT ARM CYLINDER (21500004-21500171) 458
• LIFT ARM CYLINDER (21500172-) 460
• BUCKET CYLINDER (21500004-21500171) 462
• BUCKET CYLINDER (21500172-) 464
• TRAVEL MOTOR (1/3) (reduction sec.; 21500004-21501995) (for GEHL & MUSTANG; 21501852-) 466
• TRAVEL MOTOR (2/3) (motor sec.; 21500004-21501995) (for GEHL & MUSTANG; 21501852-) 470
• TRAVEL MOTOR (3/3) (valve sec.; 21500004-21500011) 472
• TRAVEL MOTOR (3/3) (valve sec.; 21500012-21500765) 474
• TRAVEL MOTOR (3/3) (valve sec.; 21500766-21501995) (for GEHL & MUSTANG; 21501852-) 476
• TRAVEL MOTOR (1/3) (reduction sec.; 21502001-) 478
• TRAVEL MOTOR (2/3) (motor sec.; 21502001-) 480
• TRAVEL MOTOR (3/3) (valve sec.; 21502001-) 482
• HYDRAULIC PUMP (1/4) (21500004-21500184) 484
• HYDRAULIC PUMP (2/4) (21500004-21500184) 487
• HYDRAULIC PUMP (3/4) (21500004-21500184) 490
• HYDRAULIC PUMP (4/4) (21500004-21500184) 492
• HYDRAULIC PUMP (1/4) (21500185-) 494
• HYDRAULIC PUMP (2/4) (21500185-) 498
• HYDRAULIC PUMP (3/4) (21500185-) 500
• HYDRAULIC PUMP (4/4) (21500185-) 502
• GEAR PUMP 504
• GEAR PUMP (high flow) 506
• ENGINE – YANMAR 4TNV106T-XTBL1 (HIGH FLOW) SN 21500628- 508
• Fig1.CYLINDER BLOCK 509
• Fig2.GEAR HOUSING (Machine S/N 21500628-21503359) 512
• Fig2-1.GEAR HOUSING (Machine S/N 21503360-) 514
• Fig3.FLYWHEEL HOUSING & OIL SUMP 516
• Fig4.CYLINDER HEAD & BONNET 518
• Fig5.SUCTION MANIFOLD & AIR CLEANER 522
• Fig6.EXHAUST MANIFOLD & SILENCER 524
• Fig7.CAMSHAFT & DRIVING GEAR 526
• Fig8.TURBINE 528
• Fig9.CRANKSHAFT & PISTON 530
• Fig10.LUB.OIL SYSTEM 532
• Fig11.LUB.OIL LINE 534
• Fig12.COOLING WATER SYSTEM 536
• Fig13.FUEL INJECTION PUMP 540
• Fig14.GOVERNOR 544
• Fig15.FUEL INJECTION VALVE 546
• Fig16.FUEL LINE 548
• Fig17.STARTING MOTOR 550
• Fig18.GENERATOR 552
• Fig19.GASKET SET 554
• ENGINE – YANMAR 4TNV106T-XTBL SN 21500628- 558
• Fig1.CYLINDER BLOCK 559
• Fig2.GEAR HOUSING (Machine S/N 21500628-21503359) 562
• Fig2-1.GEAR HOUSING (Machine S/N 21503360-) 564
• Fig3.FLYWHEEL HOUSING & OIL SUMP 567
• Fig4.CYLINDER HEAD & BONNET 570
• Fig5.SUCTION MANIFOLD & AIR CLEANER 574
• Fig6.EXHAUST MANIFOLD & SILENCER 576
• Fig7.CAMSHAFT & DRIVING GEAR 578
• Fig8.TURBINE 580
• Fig9.CRANKSHAFT & PISTON 582
• Fig10.LUB.OIL SYSTEM 584
• Fig11.LUB.OIL LINE 586
• Fig12.COOLING WATER SYSTEM 588
• Fig13.FUEL INJECTION PUMP 592
• Fig14.FUEL INJECTION VALVE 594
• Fig15.FUEL LINE 596
• Fig16.STARTING MOTOR 598
• Fig17.GENERATOR 600
• Fig18.GASKET SET 602
• KITS, ATTACHMENTS & QUICK REFERENCE 606

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