This is the Kubota T1880, T2080 and T2380 riding mower Workshop Manual (publication 9Y111-01106), a 585-page PDF for anyone servicing these lawn tractors. It documents both the mechanism and the servicing of the whole machine and folds in the full engine service manuals for the Kohler power units.Machine coverage includes the engine, the hydrostatic transaxle, brakes, front axle, steering, the fender and lift system, the PTO system, the electrical system with the KRA reverse awareness circuit, and the mower deck and blade drive. Two complete Kohler engine service manuals are bound in: the Courage SV470 to SV620 and the 7000 Series KT715 to KT745.Use it to troubleshoot a weak hydrostatic drive, set blade and pulley torque, adjust the brakes, follow the wiring diagram, and rebuild the Kohler engine to factory spec. It is a downloadable, printable PDF for the shop or the yard.
What's Inside This Kubota T1880, T2080, T2380 Manual
| System | Pages | Key Topics |
|---|---|---|
| Record of Revisions | 3 | - |
| Safety First | 4-7 | - |
| Safety Decals | 8-10 | - |
| Dimensions | 13 | Overall Length, Overall Width, Overall Height, Wheel Base, Tread, Weight |
| General | 14-63 | Identification (Serial Number, Cylinder Number), Handling Precautions for Electrical Parts and Wiring (Battery, Fuse, Connector, Handling of Circuit Tester), Lubricants and Fuel |
| Engine | 64-85 | Mechanism (Structure, Evaporative Emission Control System), Structure (T1880, T2080, T2380) |
| Hydrostatic Transaxle | 86-98 | Mechanism (Structure), Structure (Figure 1, Hydraulic Schematic with Charge Pump) |
| Brakes | 99-107 | Insufficient Braking Force, Brake Drags, Heavy Brakes |
| Front Axle | 108-116 | Front Wheels, Drag Link, Front Wheel, Muffler, Front Axle Assembly |
| Steering | 117-134 | Steering Wheel, Steering Bearing, Steering Shaft, Sector Gear, Drag Link, Battery, Hood (Bonnet), PTO Lever |
| Fender and Lift System | 135-143 | Troubleshooting, Tightening Torques, Checking, Disassembling and Servicing (Checking and Adjusting, Disassembling and Assembling, Separating Fender, Lift Linkage, Gas Spring) |
| PTO System | 144-154 | Belt Drive, PTO Tension Arm and HST Tension Arm |
| Electrical System | 155-175 | Wiring Diagram, T2080, T2380, Kra (Kubota Reverse Awareness) System, Kra System Electrical Circuit, Servicing, Troubleshooting |
| Mower | 176-195 | Mechanism (Power Transmission, Mower Blades), Power Transmission (to the Mower, Blades to), Mower Blades |
| Engine 1 | 196-292 | Safety and General Information (Safety Precautions, Engine Identification Numbers, Oil Recommendations, Fuel Recommendations, Periodic Maintenance, Storage, Specifications) |
| Kohler Courage SV470-SV620 Service Manual | 293-368 | Safety, Maintenance, Specifications, Tools and Aids, Troubleshooting, Air Cleaner/Intake, Fuel System, Governor System |
| Engine 2 | 369-476 | Safety and General Information (Safety Precautions, Engine Identification Numbers, Oil Recommendations, Fuel Recommendations, Periodic Maintenance Instructions, Storage, Specifications) |
| Kohler 7000 Series KT715-KT745 Service Manual | 477-584 | Safety, Maintenance, Specifications, Tools and Aids, Troubleshooting, Air Cleaner/Intake, Fuel System, Governor System |
| Editor Information | 585 | Editor, Kubota Corporation, Printed in Japan |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| T1880 | ||
| Engine crankcase capacity | 1.5 L (1.6 U.S.qts, 1.3 Imp.qts) | p. 11 |
| T2080, T2380 | ||
| Engine crankcase capacity | 1.8 L (1.9 U.S.qts, 1.5 Imp.qts) | p. 11 |
| T1880, T1880A, T1880A2 | ||
| Total displacement | 597 cm³ | p. 11 |
| T2080 | ||
| Max. horse power | 14.9 kW (20 HP) | p. 11 |
| All Models | ||
| Hydrostatic transmission case capacity | 2.70 to 2.75 L | p. 11 |
| PTO speed | 3200 min-1 (rpm) | p. 11 |
| Front tire pressure | 100 kPa (14 psi) | p. 31 |
| Blade tightening torque | 103 to 117 N·m | p. 35 |
| Spark plug gap | 0.76 mm (0.030 in.) | p. 46 |
| Battery Voltage | More than 12 V | p. 168 |
| Transaxle fluid drain plug torque | 1.70 N·m (0.17 kgf·m) | p. 57 |
| Engine mounting nut torque | 24 to 27 N·m | p. 75 |
Kubota T1880, T2080, T2380 Common Problems This Manual Covers
Weak or lost hydrostatic drive
A mower that creeps or will not move under load usually has a low charge pump, worn HST internals or the wrong fluid level. The Hydrostatic Transaxle section covers the structure and the hydraulic schematic with the charge pump.
Manual Section: Hydrostatic Transaxle p. 86Mower deck vibration or scalping
Excess vibration or an uneven cut points to bent blades, a worn spindle or a slack drive belt. The Mower section covers the power transmission to the deck, the blade drive and the mower blades.
Manual Section: Mower p. 176PTO will not engage or slips
A deck that will not spin up or drops out under grass load usually has a stretched belt or a worn tension arm. The PTO System section documents the structure, the PTO and HST tension arms and the servicing procedure.
Manual Section: PTO System p. 144Reverse cutting cutout acting up
Nuisance shutdowns or a mower that will not cut in reverse point to the KRA reverse awareness circuit. The Electrical System section covers the wiring diagram and the KRA system electrical circuit and its troubleshooting.
Manual Section: Electrical System p. 155Loose or wandering steering
Play at the wheel or a mower that pulls to one side usually means worn steering gears or linkage. The Steering section covers the mechanism, structure and the checking and servicing steps.
Manual Section: Steering p. 117Brakes weak or out of adjustment
A mower that will not hold on a slope or stops unevenly needs the brake checked and adjusted. The Brakes section gives the troubleshooting, tightening torques and the checking and adjusting procedure.
Manual Section: Brakes p. 99Kohler engine hard starting or running rough
Hard starting, surging or power loss on the KT715 or KT725 engine calls for work in the fuel and governor systems. The bound-in 7000 Series service manual covers troubleshooting, the fuel system and the governor system.
Manual Section: Kohler 7000 Series KT715-KT745 Service Manual p. 477Frequently Asked Questions
Which mowers does this manual cover?
It covers the Kubota T1880, T2080 and T2380 riding mowers, including their structure differences where the models diverge.
Does it include the Kohler engine service manuals?
Yes. Two complete Kohler engine service manuals are bound in: the Courage SV470 to SV620 and the 7000 Series KT715 to KT745, each with maintenance, specifications and troubleshooting. p. 293
Does it have the wiring diagram and KRA circuit?
Yes. The Electrical System section includes the wiring diagram for the T2080 and T2380 and the KRA reverse awareness system electrical circuit and its troubleshooting. p. 155
Does it cover the mower deck and blades?
Yes. The Mower section covers the power transmission to the deck, the blade drive and the mower blades, including their mechanism. p. 176
Will this Kubota T1880 Workshop Manual download right away?
A 585-page Workshop Manual in searchable PDF, ready to download the moment checkout completes. Open it on a computer, tablet, or phone with no shipping wait.
Is this Kubota T1880 manual print-friendly?
Yes. The PDF carries no DRM, so you can print any page or section you need for the shop. It works with any standard printer.
Is there a wiring diagram in this Kubota T1880 Workshop Manual?
Complete wiring diagrams are included, covering all electrical circuits, harness routing, and connector identification for the Kubota T1880, T2080, T2380.
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