Takeuchi TB128FR Shop Manual — Wiring Diagrams

$9.95

Model: TB128FR
Type: Mini Excavator
Serial: 12830003 and up
287 Pages·22 MB·Searchable PDF·English·Print-Ready
  • ✓ Wiring Diagrams
  • ✓ Hydraulic Schematics
  • ✓ Torque Specs
  • ✓ Bookmarks
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Takeuchi TB128FR hydraulic circuit diagram showing control valve, cylinders, swivel joint, and main relief pressure specifications.
Takeuchi TB128FR Shop Manual — Wiring Diagrams
$9.95

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Wondering what's in a Takeuchi TB128FR shop manual PDF? All 287 pages here cover one machine: the TB128FR mini excavator, from crawler belt to slew bearing. You get the complete hydraulic circuit diagram, electrical wiring and wire harness diagrams, plus step-by-step disassembly and assembly for the piston pump, control valve, pilot valves, cylinders, travel motor, slew motor, and swivel joint. A full troubleshooting section walks you through every failure mode: no operation, weak slew, spontaneous boom drop, a dead offset cylinder, even the interference prevention system. Set rubber track tension at 77 to 87 mm and torque the track roller bolts to 158 N·m; the hydraulic tank holds 44 L and the system takes 70 L of oil in total. No more chasing a lazy boom with guesswork. Bookmarked chapters and a real text layer let you jump straight to any spec, on any device, right at the machine.

What's Inside This Takeuchi TB128FR Manual

SystemPagesKey Topics
Safety3-12Safety Alert Symbol, Safety Precautions, Cautions When Working
Service Data13-46Dimensional Drawing, Specifications Tables, Lubricant and Fuel Chart, Performance Criteria, Tightening Torque, Hydraulic Circuit Diagram, Electrical Wiring Diagram
Function47-82Piston Pump Discharge Control Mechanism, Relief and Solenoid Valve Operation, Control Valve Circuit Pressures, Boom Lower Operation, Counterbalance Valve, Travel 2-Speed Mechanism, Slew Relief and Make-Up Valves, Anti-Rebound Timer Valve, Interference Prevention Logic, Attachment Interference Switch
Service Standards84-86Carrier Roller, Track Roller, Drive Sprocket, Idler, Pin and Bushing Clearance
Drive System87-93Engine, Radiator, Oil Cooler, Hydraulic Pump, Fuel Tank, Throttle Lever
Travel System94-98Crawler Belt, Steel Crawler, Carrier Roller, Track Roller, Idler, Track Adjuster, Travel Motor
Slew System99-101Slew Motor, Slew Bearing, Swivel Joint, Brake Valve
Upper Frame102-107Floor Frame, Covers, Cab
Control System108-115Control Lever, Blade Lever, Lever Stand, Control Cable
Attachments116-121Bucket, Bucket Link, Arm, Boom, Boom Bracket, Dozer Blade
Hydraulic Tank122-126Hydraulic Oil Tank, Sight Gauge, Return Filter, Suction Filter, Valve Assembly
Hydraulic Pump127-135Piston Pump, Gear Pump, Cylinder Block, Swash Plate, Shoe Holder, Valve Plate, Shaft Assembly, Oil Seal, Spring Guide
Control Valve136-146Tie Rod, Bucket Section, Boom Section, Arm Section, Left and Right Travel Sections, Switch Valve, Main Relief Valve, Load Check Valve, Pilot Operated Section
Pilot Valve147-153Spool, Push Rod, Spring Seat, Spring, Washer, Plug, O-Ring and Seal, Joint Disc, Special Tools
Pilot Valve (Offset)154-157Cover, Boot, Plug, Spool Assembly, Spring, O-Ring and Seal
Pilot Valve (Travel)158-162Orifice, Shim, Washer, Push Rod, Balls and Holders, Plugs, Boot, Cover
Solenoid Valve163-166Pressure Reducing Valve, Coil, Spool, Sleeve, Shim, Spring, Plug, Body
Cylinders167-181Boom Cylinder, Arm Cylinder, Bucket Cylinder, Offset Cylinder, Rod Packing, Dust Seal, Wear Ring, Piston Packing, Bushing, No-Load Operation Test
Travel Motor182-205Hydraulic Motor, Counter Balance Valve, 2nd Speed Mechanism, Reduction Gears, Brake Valve
Slew Motor206-220Hydraulic Motor, Relief Valve, Make-Up Valve, Anti-Rebound Valve, Parking Brake, Reduction Gears
Swivel Joint221-225Shaft, Hub, Flange, Thrust Ring, Slipper Seal, O-Ring
Interference Prevention System226-228Interference Sensors, Boom Switches, Offset Switch, Attachment Interference Switch, Solenoid Valve, Interference Prevention Relay
Troubleshooting229-286Overall Machine (No Operation Is Possible., All Systems Working, But Insufficient Force., Boom, Bucket, Slew and Arm Fail to Move or Are Too Slow.)
Engine287Machine Model, Mounted Engine

Quick Reference Specifications

SpecificationValuePage
Track tension (Rubber)77 to 87 mmp. 24
Track roller fixing bolt torque158 N·mp. 95
Engine cushion rubber bolt torque102 N·mp. 86
Engine Output17.5 kWp. 16
Operating Mass (Cab)3410 kgp. 16
Hydraulic Tank Capacity44 Lp. 21
Hydraulic Oil, Total Amount (system)70 Lp. 21
Engine Coolant Capacity4.3 Lp. 21
Fuel Tank Capacity39 Lp. 22
Main Relief Valve Pressure21.0 MPap. 25
Pilot Pressure3.4 MPap. 25
Engine Oil Pan Capacity (Upper limit)3.6 Lp. 21
BrandTakeuchi
ModelTB128FR
Machine TypeMini Excavator
Manual TypeShop Manual
LanguageEnglish
FormatSearchable PDF (Digital Download)
Pages287
File Size22 MB
Serial Range12830003 and up
Wiring DiagramsYes
Hydraulic SchematicsYes
Torque SpecificationsYes
Bookmarked / IndexedYes