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Takeuchi TL120 Crawler Loader Workshop Manual (incl. Wiring)

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$9.95 USD · one-time payment

Model: TL120 | YDP-MP2 | YDP-MP4
Type: Crawler Loader
Serial: 21200008 and up
552 Pages·30 MB·Searchable PDF·English·Print-Ready
  • ✓ Wiring Diagrams
  • ✓ Hydraulic Schematics
  • ✓ Torque Specs
  • ✓ Bookmarks
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Takeuchi TL120, HST pump assembly exploded view diagram with numbered parts list.
Takeuchi TL120 Crawler Loader Workshop Manual (incl. Wiring)
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This 552-page Takeuchi TL120 Workshop Manual (OEM #CT3E001) covers the crawler loader chassis, HST drive, and the 4TNV94L/98 and 4TNV106 engine family in one bound reference. Open it up and you get complete hydraulic schematics for the HST pump, control valve, and self-level valve circuits, plus electrical wiring diagrams and wire harness routing you'd otherwise chase with a multimeter. You also get a real troubleshooting section, broken into symptom trees like insufficient power, lift arm drop, and travel veer, so you're not guessing which valve is bad. Set drive belt tension to 120 lbs max and confirm AC system pressure sits between 150 and 250 PSI before you close the hood. No more flipping between three forum threads to confirm a torque spec. This PDF carries bookmarked navigation, so you jump straight from Service Data to Turbocharger disassembly without scrolling, right from your phone in the shop.

What's Inside This Manual

SystemPagesKey Topics
Safety3-12Safety Alert Symbol, Safety Precautions, Cautions When Working
Service Data13-42Dimensional Drawing, Specifications Tables, Fuel and Lubricant Table, Performance Criteria, Tightening Torque, Hydraulic Circuit Diagram, Electrical Wiring Diagram
Operation43-84HST Pump, Gear Pump, Control Valve, Sub Valve, Self-Level Valve, Pilot Valve, Proportional Control Solenoid Valve, Cylinders
Disassembly and Assembly85-200Service Standards, Drive System, Travel System, Frame, Control System, Attachments, Hydraulic Tank, HST Pump
Troubleshooting201-264Overall Machine (No Operation Is Possible, All Systems Working, But Insufficient Power, Lift Arm and Bucket Fail to Move or Are Too Slow)
Yanmar Engine Manual: Introduction & Safety265-281Safety Precautions, Manual Scope, Engine Nomenclature, Applicable Engine Models
Yanmar Engine: General282-303Engine Nomenclature, Specifications, Fuel Oil, Lubricating Oil and Cooling Water
Yanmar Engine: Inspection and Adjustment304-335Periodic Maintenance Schedule, Periodic Inspection and Maintenance Procedure, Check Before Daily Operation, Inspection After Initial 50 Hours Operation
Yanmar Engine: Troubleshooting336-341Preparation Before Troubleshooting, Quick Reference Table for Troubleshooting, Troubleshooting by Measuring Compression Pressure
Disassembly, Inspection and Reassembly of Engines342-390Complete Disassembly and Reassembly, Introduction, Special Service Tools, Complete Disassembly
Lubrication System391-396Lubrication System Diagram, Trochoid Pump Components, Disassembly (Reverse the Procedure Below for Assembly), Servicing Points
Cooling System397-398Cooling Water System, Cooling Water Pump Components, Disassembly (Reverse the Procedure Below for Assembly), Servicing Points
Fuel Injection Pump / Governor399-402Introduction, Fuel Injection Pump, Fuel System Diagram, External View and Components
Turbocharger: Disassembly, Inspection and Reassembly403-424Structure and Functions, Main Specifications, Construction, Structural and Functional Outline
Starting Motor425-462For 4Tnv94L/ 98, Specifications, Components, Troubleshooting
Alternator463-466The 40A Alternator for 3TNV84 and Other Models, Components, Specifications, Wiring Diagram
Electric Wiring467-483Electric Wiring Diagram, Precaution on Electric Wiring, Alternator, Starter
Tightening Torque for Bolts and Nuts484Tightening Torques for Main Bolts and Nuts
Service Standards485-552Tightening Torques for Main Bolts and Nuts, Tightening Torques for Standard Bolts and Nuts, Engine Tuning, Engine Body

Quick Reference Specifications

SpecificationValuePage
AC system high side pressure (R-12)150 to 250 pounds per square inchp. 69
Drive belt tension120 pounds maximump. 76
Condenser clearance1-1/2 inchesp. 259
Minimum turning radius1.995 mp. 287
Engine Displacement (Yanmar 3TNV84T, bundled engine manual)1.496 Lp. 342
Engine Rated Output (Yanmar 4TNV94L at 1500 rpm, bundled engine manual)29.1 kWp. 342
BrandTakeuchi
ModelTL120, YDP-MP2, YDP-MP4
Machine TypeCrawler Loader
Manual TypeWorkshop Manual
LanguageEnglish
FormatSearchable PDF (Digital Download)
Pages552
File Size30 MB
Manual No.CT3E001
Serial Range21200008 and up
Wiring DiagramsYes
Hydraulic SchematicsYes
Torque SpecificationsYes
Bookmarked / IndexedYes
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