Takeuchi TL12 Track Loader Parts Manual (BU7Z003-9-B) (SN 201200003-)

Out on a muddy site or in a demo lot, the TL12 is usually pushing dirt, loading trucks, or clawing around rocks all day, so it eats undercarriage and pins for breakfast. This parts manual lets you trace every assembly down to the exact washer, seal, or snap ring, so you don’t guess at the counter or wait on the wrong order. Picture this: you’ve got the travel motor off, three different snap rings on the bench, and the old one’s mangled—you can open this, match the exploded view, verify the part number, and get the right ring the first time.

Applications & Use Cases

• Track down which roller, idler, or adjuster fits your serial range before you tear into the undercarriage.
• Isolate a leaking hydraulic joint by matching fittings and hoses in the breakdown, then order only what you actually need.
• Check superseded part numbers so you don’t chase obsolete stock or get the wrong style of seal.
• Verify hardware sizes visually, then route a clean pick list to your dealer or online cart.
• Inspect assemblies on paper first to plan how you’ll bleed, align, and reassemble the system without extra trips.

FAQ

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

A: It’s typically a standard PDF you can search by part name or number, which makes finding small stuff like clips and shims a lot faster.

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

A: Yes, you can usually print individual pages or sections, then tape them to the machine so they don’t get wrecked in the cab.

Safety Note

Always lock out, block up, and bleed off pressure before you start pulling tracks, cylinders, or travel components you’re tracing in this manual.

Takeuchi TL12 Track Loader Index:

• UNDERCARRIAGE 1
• TRACK ROLLER A 2
• TRACK ROLLER B 4
• FRONT IDLER 6
• TRACK ADJUSTER 8
• TRAVEL DEVICE 10
• CRAWLER BELT 12
• MAIN FRAME & CONTROL LEVER 14
• FRAME-1 15
• FRAME-2 18
• ARM STOPPER 20
• HOOK 22
• OPERATION LEVER & STAND 24
• PIPING; OPERATION LEVER 28
• PIPING; OPERATION LEVER (ISO-H pattern) (add-on type)-1 30
• PIPING; OPERATION LEVER (ISO-H pattern) (add-on type)-2 34
• ENGINE & ELECTRICAL SYSTEM 38
• ENGINE & ACCESSORIES (1/4)-1 39
• ENGINE & ACCESSORIES (1/4)-2 44
• ENGINE & ACCESSORIES (1/4) (with CCV heater)-1 48
• ENGINE & ACCESSORIES (1/4) (with CCV heater)-2 52
• ENGINE & ACCESSORIES (2/4) 56
• ENGINE & ACCESSORIES (3/4) 58
• ENGINE & ACCESSORIES (4/4) 60
• DRAIN PLUG 62
• CONTROL BOX; R.H. 64
• CONTROL BOX; R.H. (with CCV heater) 68
• CONTROL BOX; L.H. 72
• CONTROL BOX; L.H. (hydraulic quick hitch type) 74
• ENGINE CONTROL 76
• FOOT ACCELERATOR 78
• ELECTRICAL (1/2) (201200003-201201480, 201201493, 201201494)-1 80
• ELECTRICAL (1/2) (201200003-201201480, 201201493, 201201494)-2 82
• ELECTRICAL (1/2) (201200003-201201480, 201201493, 201201494)-3 84
• ELECTRICAL (1/2) (201200003-201201480, 201201493, 201201494)-4 88
• ELECTRICAL (1/2) (201201481-201201492, 201201495-)-1 90
• ELECTRICAL (1/2) (201201481-201201492, 201201495-)-2 92
• ELECTRICAL (1/2) (201201481-201201492, 201201495-)-3 96
• ELECTRICAL (2/2) (201200003-201201480, 201201493, 201201494) 98
• ELECTRICAL (2/2) (201201481-201201492, 201201495-) 101
• ELECTRICAL (cab) 106
• ELECTRICAL (canopy) 108
• GPS DEVICE 110
• BATTERY 112
• REAR LAMP 116
• MAINTENANCE LIGHT SOCKET 118
• WINDOW WASHER 120
• RADIO 122
• HYDRAULIC PIPING & TANK 124
• VALVE & ACCESSORIES (1/3) 125
• VALVE & ACCESSORIES (1/3) (high flow)-1 130
• VALVE & ACCESSORIES (1/3) (high flow)-2 134
• VALVE & ACCESSORIES (2/3) 137
• VALVE & ACCESSORIES (3/3) (high flow) 142
• MANUAL PARKING BRAKE 144
• PIPING-1 146
• PIPING-2 150
• RIDE CONTROL 152
• PUMP DRIVE 154
• GEAR PUMP DRIVE (high flow) 158
• HYDRAULIC TANK 160
• FUEL TANK & FUEL PIPING (1/2)-1 164
• FUEL TANK & FUEL PIPING (1/2)-2 166
• FUEL TANK & FUEL PIPING (2/2) 170
• COVER & CAB 172
• COVER (1/3) 173
• COVER (2/3) (rear door) 178
• COVER (3/3) (engine hood) 180
• FLOOR FRAME 182
• SEAT (1/2) 186
• SEAT (2/2) 188
• SEAT BELT (three point seat belt) 190
• SEAT SWITCH 192
• SAFETY BAR 194
• CANOPY MOUNT 196
• CANOPY-1 200
• CANOPY-2 206
• CANOPY-3 212
• CAB MOUNT 218
• CAB (1/2)-1 222
• CAB (1/2)-2 232
• CAB (1/2)-3 242
• CAB (1/2)-4 252
• CAB (1/2)-5 262
• CAB (2/2) (front door) 272
• CAB (2/2) (front door, polycarbonate type) 276
• CAB KIT (1/2)-1 278
• CAB KIT (1/2)-2 284
• CAB KIT (1/2)-3 290
• CAB KIT (1/2)-4 296
• CAB KIT (2/2) (front door) 302
• DOOR KIT (1/2) (polycarbonate type) 306
• DOOR KIT (2/2) (polycarbonate type) 308
• REAR MIRROR 310
• AIR CONDITIONER (1/5) (compressor) 312
• AIR CONDITIONER (2/5) (condenser) 316
• AIR CONDITIONER (3/5) (air conditioner unit) 320
• AIR CONDITIONER (4/5) 324
• AIR CONDITIONER (5/5) 326
• ATTACHMENTS 328
• ARM 329
• QUICK HITCH 334
• QUICK HITCH (hydraulic type)-1 336
• QUICK HITCH (hydraulic type)-2 340
• QUICK HITCH (hydraulic type, with 3/4 coupler)-1 342
• QUICK HITCH (hydraulic type, with 3/4 coupler)-2 346
• PIPING; ARM-1 348
• PIPING; ARM-2 350
• PIPING; ARM (with coupler)-1 352
• PIPING; ARM (with coupler)-2 354
• PIPING; ARM (high flow)-1 358
• PIPING; ARM (high flow)-2 362
• PIPING; ARM (high flow, with 3/4 coupler)-1 364
• PIPING; ARM (high flow, with 3/4 coupler)-2 368
• PIPING; ARM (high flow, with coupler, hydraulic quick hitch type)-1 372
• PIPING; ARM (high flow, with coupler, hydraulic quick hitch type)-2 376
• 2ND AUXILIARY LINE 380
• 2ND AUXILIARY LINE (except for main aux. type) 382
• DECAL & TOOL 384
• DECAL (canopy)-1 385
• DECAL (canopy)-2 394
• DECAL (cab)-1 402
• DECAL (cab)-2 410
• DECAL (high flow) 418
• TOOL & ACCESSORIES 420
• PAINTED COLOR 422
• SERVICE TOOL 424
• HYDRAULIC DEVICE 426
• CONTROL VALVE 427
• CONTROL VALVE (high flow) 432
• BLOCK ASSY; No. 1 434
• BLOCK ASSY; No. 2 436
• BLOCK ASSY; No. 3 438
• PILOT VALVE (R.H.) 440
• PILOT VALVE (L.H.) 442
• HANDLE (with slide switch) 444
• HANDLE (with 5 switch) 446
• SUB VALVE 448
• SOLENOID VALVE; 1 BLOCK (201200003-201201271) 450
• SOLENOID VALVE; 1 BLOCK (201201272-) 452
• SOLENOID VALVE; 1 BLOCK 1 454
• SOLENOID VALVE; 1 BLOCK 2 456
• ELECTRICAL PROPORTION VALVE 458
• SELECTOR VALVE (ISO-H pattern) 460
• SHUTTLE VALVE (ISO-H pattern) 462
• LIFT ARM CYLINDER 464
• BUCKET CYLINDER 466
• QUICK HITCH CYLINDER 468
• TRAVEL MOTOR (1/3) (reduction sec.) 470
• TRAVEL MOTOR (2/3) (motor sec.) 472
• TRAVEL MOTOR (3/3) (valve sec.) 474
• HYDRAULIC PUMP (1/5) 476
• HYDRAULIC PUMP (2/5) 478
• HYDRAULIC PUMP (3/5) 482
• HYDRAULIC PUMP (4/5) 484
• HYDRAULIC PUMP (5/5) 488
• GEAR PUMP (2 blocks) 490
• GEAR PUMP (high flow) 492
• ENGINE – KUBOTA V3800-CR-TIE4B-TLTU1 (HIGH FLOW) SN 201200003- 494
• Fig1.CRANK CASE 495
• Fig2.OIL PAN 498
• Fig3.DIPSTICK AND GUIDE 500
• Fig4.CYLINDER HEAD 502
• Fig5.INLET VALVE AND EXHAUST VALVE 504
• Fig6.ROCKER ARM SHAFT 506
• Fig7.HEAD COVER 508
• Fig8.GEAR CASE 510
• Fig9.PISTON AND CRANKSHAFT 512
• Fig10.CAMSHAFT AND IDLE GEAR SHAFT 514
• Fig11.BEARING CASE COVER 516
• Fig12.FLYWHEEL 518
• Fig13.SUPPLY PUMP 520
• Fig14.FUEL FILTER 522
• Fig15.FUEL FILTER 524
• Fig16.FUEL PIPE 526
• Fig17.SEPARATOR 528
• Fig18.INJECTION PIPE 530
• Fig19.COMMON RAIL 532
• Fig20.ALTERNATOR AND PULLEY 534
• Fig21.ALTERNATOR [COMPONENT PARTS] 536
• Fig22.STARTER 538
• Fig23.STARTER [COMPONENT PARTS] 540
• Fig24.SWITCH/SENSOR 542
• Fig25.INJECTOR HARNESS 544
• Fig26.WATER FLANGE AND THERMOSTAT 546
• Fig27.WATER PUMP 548
• Fig28.RESERVE TANK 550
• Fig29.FAN AND PULLEY 552
• Fig30.INLET MANIFOLD 554
• Fig31.AIR CLEANER FLANGE AND THROTTLE VALVE 556
• Fig32.EXHAUST MANIFOLD 558
• Fig33.EGR VALVE 560
• Fig34.EGR COOLER 562
• Fig35.TURBO CHARGER 564
• Fig36.DIESEL PARTICULATE FILTER MUFFLER 566
• Fig37.DIESEL PARTICULATE FILTER MUFFLER [COMPONENT PARTS] 568
• Fig38.DIESEL PARTICULATE FILTER MUFFLER SENSOR 570
• Fig39.DIFFERENTIAL PRESSURE PIPE 572
• Fig40.BREATHER PIPE/SEPARATOR PIPE 574
• Fig41.BREATHER PIPE/SEPARATOR PIPE (FOR CCV HEATER) 576
• Fig42.OIL SEPARATOR 578
• Fig43.OIL SEPARATOR (FOR CCV HEATER) 580
• Fig44.OIL PIPE(TURBO CHARGER) 582
• Fig45.OIL COOLER 584
• Fig46.OIL FILTER 586
• Fig47.HYDRAULIC PUMP 588
• Fig48.ECU 590
• Fig49.ACCESSORIES AND SERVICE PARTS 592
• Fig50.ACCESSORIES AND SERVICE PARTS 594
• Fig51.LABEL AND OPERATOR’S MANUAL 596
• Fig52.PISTON KIT [OPTION] 598
• Fig53.Diagmaster [OPTION] 600
• ENGINE – KUBOTA V3800-CR-TIE4B-TLTU2 (STD) SN 201200003- 602
• Fig1.CRANK CASE 603
• Fig2.OIL PAN 606
• Fig3.DIPSTICK AND GUIDE 608
• Fig4.CYLINDER HEAD 610
• Fig5.INLET VALVE AND EXHAUST VALVE 612
• Fig6.ROCKER ARM SHAFT 614
• Fig7.HEAD COVER 616
• Fig8.GEAR CASE 618
• Fig9.PISTON AND CRANKSHAFT 620
• Fig10.CAMSHAFT AND IDLE GEAR SHAFT 622
• Fig11.BEARING CASE COVER 624
• Fig12.FLYWHEEL 626
• Fig13.SUPPLY PUMP 628
• Fig14.FUEL FILTER 630
• Fig15.FUEL FILTER 632
• Fig16.FUEL PIPE 634
• Fig17.SEPARATOR 636
• Fig18.INJECTION PIPE 638
• Fig19.COMMON RAIL 640
• Fig20.ALTERNATOR AND PULLEY 642
• Fig21.ALTERNATOR [COMPONENT PARTS] 644
• Fig22.STARTER 646
• Fig23.STARTER [COMPONENT PARTS] 648
• Fig24.SWITCH/SENSOR 650
• Fig25.INJECTOR HARNESS 652
• Fig26.WATER FLANGE AND THERMOSTAT 654
• Fig27.WATER PUMP 656
• Fig28.RESERVE TANK 658
• Fig29.FAN AND PULLEY 660
• Fig30.INLET MANIFOLD 662
• Fig31.AIR CLEANER FLANGE AND THROTTLE VALVE 664
• Fig32.EXHAUST MANIFOLD 666
• Fig33.EGR VALVE 668
• Fig34.EGR COOLER 670
• Fig35.TURBO CHARGER 672
• Fig36.DIESEL PARTICULATE FILTER MUFFLER 674
• Fig37.DIESEL PARTICULATE FILTER MUFFLER [COMPONENT PARTS] 676
• Fig38.DIESEL PARTICULATE FILTER MUFFLER SENSOR 678
• Fig39.DIFFERENTIAL PRESSURE PIPE 680
• Fig40.BREATHER PIPE/SEPARATOR PIPE 682
• Fig41.BREATHER PIPE/SEPARATOR PIPE (FOR CCV HEATER) 684
• Fig42.OIL SEPARATOR 686
• Fig43.OIL SEPARATOR (FOR CCV HEATER) 688
• Fig44.OIL PIPE(TURBO CHARGER) 690
• Fig45.OIL COOLER 692
• Fig46.OIL FILTER 694
• Fig47.ECU 696
• Fig48.ACCESSORIES AND SERVICE PARTS 698
• Fig49.ACCESSORIES AND SERVICE PARTS 700
• Fig50.LABEL AND OPERATOR’S MANUAL 702
• Fig51.PISTON KIT [OPTION] 704
• Fig52.Diagmaster [OPTION] 706
• KITS, ATTACHEMENTS & QUICK REFERENCE 708

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