Takeuchi TB138FR Mini Excavator Parts Manual (BG6Z004-4-0) (SN 13820001- 13820314, 138200315-)

On a TB138FR you’re usually working tight sites—landscaping, utilities, around foundations—where you can’t swing a big rig, but you still beat on the undercarriage, boom, and hydraulics every day. This parts manual helps you trace every assembly down to the exact washer, snap ring, or seal so you order once and fix it once. Picture this: you’ve got the swing motor off, a thrust washer’s chewed up, and three different washers look “about right” at the dealer counter—this book lets you verify which one actually belongs in that serial range.

Applications & Use Cases

• Track down the right bucket linkage pins and bushings by tracing the boom–arm–bucket assembly breakdown instead of guessing by eye.
• Isolate which idler, sprocket, or roller fits your serial number when you’re rebuilding the undercarriage after a season of rocky work.
• Check hose routing and clamps so you can re-route and secure hydraulic lines exactly like factory after a cylinder reseal.
• Inspect the swing and travel drive diagrams to match up bearings, seals, and snap rings when you’ve got a gearbox opened on the bench.
• Verify small hardware—shims, spacers, O-rings—before you hit “order,” so you don’t stall a job waiting on one missing piece.

FAQ

Q: Is this a downloadable manual I can search on my laptop or tablet?

A: It’s typically a PDF, so you can keyword search part names or numbers and zoom in on the exploded views while you’re at the machine.

Q: Can I print just the pages I need to bring to the jobsite?

A: Yeah, you can usually print specific sections, toss them in a sleeve, get them greasy, and reprint next time instead of wrecking your device.

Safety Note

Always bleed off hydraulic pressure and support raised components mechanically before you start pulling hoses or removing pins.

Takeuchi TB138FR Mini Excavator Index:

• UNDERCARRIAGE 1
• LOWER FRAME 2
• CRAWLER BELT 4
• CRAWLER BELT (with rubber pads) 6
• CARRIER ROLLER 8
• TRACK ROLLER 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 30
• BOOM OFFSET (1/2) 34
• BOOM OFFSET (2/2) 38
• OFFSET SWITCH 42
• TRAVEL LEVER 44
• DOZER BLADE LEVER 48
• OPERATION LEVER & STAND 50
• PIPING; OPERATION LEVER (1/2) (13820001-13820310) 54
• PIPING; OPERATION LEVER (1/2) (13820311-) (138200315-) 56
• PIPING; OPERATION LEVER (2/2) 58
• PIPING; OPERATION LEVER (1/2) (A-G pattern) (13820001-13820310) 60
• PIPING; OPERATION LEVER (1/2) (A-G pattern) (13820311-) (138200315-) 62
• PIPING; OPERATION LEVER (2/2) (A-G pattern) 64
• PIPING; OPERATION LEVER (A-B pattern)-1 66
• PIPING; OPERATION LEVER (A-B pattern)-2 68
• ENGINE & ELECTRICAL SYSTEM 70
• ENGINE & ACCESSORIES (1/3) 71
• ENGINE & ACCESSORIES (2/3) 76
• ENGINE & ACCESSORIES (3/3) 82
• AIR CLEANER (for double element) 86
• DRAIN PLUG 88
• CONTROL BOX (13820001-13820079) 90
• CONTROL BOX (13820080-) (138200315-) 94
• ENGINE CONTROL 98
• DECEL UNIT 100
• ELECTRICAL (1/2) (13820001-13820081) 102
• ELECTRICAL (2/2) (13820001-13820081) 104
• ELECTRICAL (1/2) (13820082-13820314) (138200315-138200366) 108
• ELECTRICAL (2/2) (13820082-13820314) (138200315-138200366) 112
• ELECTRICAL (1/2) (138200367-) 116
• ELECTRICAL (2/2) (138200367-) 120
• TRAVEL ALARM 124
• BATTERY (13820001-13820314) (138200315-138200366) 126
• BATTERY (138200367-) 128
• RADIO 130
• RADIO BRACKET 132
• WINDOW WASHER 134
• CANOPY LIGHT 136
• HYDRAULIC PIPING & TANK 138
• VALVE & ACCESSORIES (1/3) 139
• VALVE & ACCESSORIES (1/3) (1st aux. proportional cont.) 144
• VALVE & ACCESSORIES (2/3) (with 3rd aux. line) 148
• VALVE & ACCESSORIES (3/3) (13820001-13820310) 150
• VALVE & ACCESSORIES (3/3) (13820311-) (138200315-) 152
• PIPING; UPPER (1/5) (13820001-13820310) 156
• PIPING; UPPER (1/5) (13820311-) (138200315-) 159
• PIPING; UPPER (2/5) 163
• PIPING; UPPER (3/5) (with 2nd aux. line) 166
• PIPING; UPPER (4/5) (with 3rd aux. line) 168
• PIPING; UPPER (5/5) (with high press. 3rd aux. line) 170
• PIPING; UPPER (1/5) (1st aux. proportional cont.) (13820001-13820310) 172
• PIPING; UPPER (1/5) (1st aux. proportional cont.) (13820311-) (138200315-) 175
• PIPING; UPPER (2/5) (1st aux. proportional cont.) 179
• PIPING; UPPER (3/5) (1st aux. proportional cont., with 2nd aux. line) 182
• PIPING; UPPER (4/5) (1st aux. proportional cont., with 3rd aux. line) 184
• PIPING; UPPER (5/5) (1st aux. proportional cont., with high press. 3rd aux. line) 186
• ACCUMULATOR 188
• BOOM EMERGENCY SHUT-OFF VALVE 190
• BOOM & ARM EMERGENCY SHUT-OFF VALVE (1/2) 196
• BOOM & ARM EMERGENCY SHUT-OFF VALVE (2/2) 202
• PUMP DRIVE (13820001-13820310) 204
• PUMP DRIVE (13820311-) (138200315-) 206
• HYDRAULIC TANK 208
• FUEL TANK & FUEL PIPING 212
• COVER & CAB 216
• COVER (1/3) 217
• COVER (2/3) (engine hood) 222
• COVER (3/3) (side cover) 224
• FLOOR FRAME (1/3) 226
• FLOOR FRAME (2/3) 230
• FLOOR FRAME (3/3) 234
• FLOOR MAT 236
• SEAT (1/2) (cab) 238
• SEAT (1/2) (canopy) 240
• SEAT (2/2) (cab) (13820001-13820314) (138200315-138201566) 242
• SEAT (2/2) (canopy) (13820001-13820314) (138200315-138201574) 244
• SEAT (2/2) (cab) (138201567-) 246
• SEAT (2/2) (canopy) (138201575-) 252
• HEAD REST 258
• CAB MOUNT 260
• CAB (1/7) 262
• CAB (2/7) 266
• CAB (3/7) 270
• CAB (4/7) (door) 272
• CAB (5/7) (front sash assist) 276
• CAB (6/7) (assist) 278
• CAB (7/7) (front sash) 280
• CANOPY 282
• HEATER (1/3) 286
• HEATER (2/3) 290
• HEATER (3/3) 292
• AIR CONDITIONER (1/7) (compressor) 294
• AIR CONDITIONER (2/7) (condenser) 298
• AIR CONDITIONER (3/7) (air conditioner unit) 300
• AIR CONDITIONER (4/7) (air conditioner unit) 304
• AIR CONDITIONER (5/7) (air conditioner unit) 308
• AIR CONDITIONER (6/7) (air conditioner solenoid) 312
• AIR CONDITIONER (7/7) (13820001-13820253) 314
• AIR CONDITIONER (7/7) (13820254-13820314) (138200315-1382#) 316
• AIR CONDITIONER (7/7) (1382#-) 318
• HOE ATTACHMENT 320
• BOOM (1/2) 321
• BOOM (2/2) 326
• INTERFERENCE SENSOR 330
• ARM 332
• LONG ARM 334
• AUXILIARY LINE 338
• 2ND AUXILIARY LINE 340
• 3RD AUXILIARY LINE 342
• DECAL & TOOL 346
• DECAL (cab)-1 347
• DECAL (cab)-2 354
• DECAL (canopy)-1 360
• DECAL (canopy)-2 366
• DECAL (operation lever) (cab) 372
• DECAL (operation lever) (canopy) 374
• DECAL (selector valve) (cab) 376
• DECAL (selector valve) (canopy) 378
• DECAL (crawler belt) 380
• DECAL (lift alarm) (cab) 382
• DECAL (lift alarm) (canopy) 384
• TOOL & ACCESSORIES 386
• PAINTED COLOR 388
• HYDRAULIC DEVICE 390
• SWIVEL JOINT 391
• CONTROL VALVE 394
• BLOCK ASSY; No. 1 396
• BLOCK ASSY; No. 2 398
• BLOCK ASSY; No. 3 400
• BLOCK ASSY; No. 4 402
• BLOCK ASSY; No. 5 404
• BLOCK ASSY; No. 6 406
• BLOCK ASSY; No. 7 408
• BLOCK ASSY; No. 8 410
• BLOCK ASSY; No. 9 412
• BLOCK ASSY; No. 10 414
• BLOCK ASSY; No. 11 (with 2nd aux. line) 416
• BLOCK ASSY; No. 12 418
• SOLENOID VALVE; 1 BLOCK 420
• SOLENOID VALVE; 3 BLOCKS 422
• SOLENOID VALVE; 5 BLOCKS 424
• SOLENOID VALVE (for air conditioner) 426
• PROPORTIONAL VALVE 428
• PILOT VALVE 430
• PILOT VALVE (R.H.) (with 3-switch) 432
• PILOT VALVE (L.H.) (with 3-switch) 434
• PILOT VALVE (R.H.) (with slide switch) 436
• PILOT VALVE (L.H.) (with slide switch) 438
• HANDLE (with slide switch) 440
• HANDLE (with 3-switch) 442
• REMOTE CONTROL VALVE (for travel) 444
• REMOTE CONTROL VALVE (for offset) (for 2nd aux. line) 446
• SELECTOR VALVE (A-G pattern) 448
• SELECTOR VALVE (A-B pattern) 450
• EMERGENCY SHUT-OFF VALVE 452
• BOOM CYLINDER 454
• ARM CYLINDER 456
• OFFSET CYLINDER (13820001-13820310) 458
• OFFSET CYLINDER (13820311-) (138200315-) 460
• BUCKET CYLINDER 462
• DOZER BLADE CYLINDER 464
• TRAVEL MOTOR (1/3) (reduction sec.) 466
• TRAVEL MOTOR (2/3) (motor sec.) 468
• TRAVEL MOTOR (3/3) (valve sec.) 470
• SLEW MOTOR (1/2) (reduction sec.) 472
• SLEW MOTOR (2/2) (motor sec.) 475
• HYDRAULIC PUMP (1/2) 480
• HYDRAULIC PUMP (2/2) 484
• ENGINE – YANMAR 3TNV88-BPTBZ SN 13820001-13820314,138200315- 486
• Fig1.CYLINDER BLOCK 487
• Fig2.GEAR HOUSING 490
• Fig3.FLYWHEEL HOUSING & OIL SUMP 492
• Fig4.CYLINDER HEAD & BONNET 494
• Fig5.SUCTIONMANIFOLD 498
• Fig6.EXHAUST MANIFOLD & SILENCER 500
• Fig7.CAMSHAFT & DRIVING GEAR 502
• Fig8.CRANKSHAFT & PISTON 504
• Fig9.LUB.OIL SYSTEM 506
• Fig10.COOLING WATER SYSTEM 508
• Fig11.FUEL INJECTION PUMP 512
• Fig12.GOVERNOR 516
• Fig13.FUEL INJECTION VALVE 518
• Fig14.FUEL LINE 520
• Fig15.STARTING MOTOR 522
• Fig16.GENERATOR 524
• Fig17.GASKET SET 526
• KITS, ATTACHMENTS & QUICK REFERENCE 528

Takeuchi