Part of the Kubota Repair Manuals.
This is the factory Kubota Workshop Manual for the T1570, T1670, T1770, and T1870 riding mowers, a 293-page service document (publication 97897-15140). All four models are covered in one book, along with their GH430V and GH500V gasoline engines.
Because the range uses two engines, the manual has separate Engine 1 and Engine 2 chapters, then covers the Hydrostatic Transaxle, Brakes, Front Axle, Steering, Fender and Lift System, PTO System, two Electrical System chapters, and the Mower deck. Each section carries troubleshooting, servicing specifications, tightening torques, and disassembly and assembly steps.
With it an owner or independent mechanic can diagnose a no start, set spark plug gap and valve clearance on either engine, rebuild the hydrostatic transaxle, service the PTO and mower deck, and work through the KRA reverse awareness system from the wiring diagram. It downloads as a searchable PDF with a text layer for the shop.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| G General | 12-48 | Features, Identification, Handling Precautions for Electrical Parts and Wiring, Fuel and Lubricants, Special Tools |
| Engine 1 | 49-102 | Separating Engine, Engine Body, Fuel System, Troubleshooting, Servicing Specifications |
| Engine 2 | 103-152 | Separating Engine, Engine Body, Fuel System, Troubleshooting, Servicing Specifications |
| Hydrostatic Transaxle | 153-175 | Disassembleing and Servicing (T1670, T1770 and T1870) |
| Brakes | 176-183 | Parking Brake System, Brake Pedal Assembly, Brake Assembly |
| Front Axle | 184-190 | Front Axle Assembly, Front Wheel, Tie-Rod, Bonnet, Muffler Cover, Front Bumper, Muffler |
| Steering | 191-198 | Steering Wheel, Battery, PTO Clutch Lever, Parking Lock Pedal, Throttle Cable, Fender, Steering Support, Steering Shaft |
| Fender and Lift System | 199-209 | Fender, Lift System, Gas Spring, Suspension, Lift Link, Lift Lever, Seat, Cutting Height Adjusting Dial |
| PTO System | 210-217 | PTO Belt, PTO Clutch Lever, Mower Brake, Tension Bracket, Tension Pulley |
| Electrical System 1 | 218-247 | Wiring Diagram, Kra (Kubota Reverse Awareness) System, Battery, Starting System, Charging System, Ignition System |
| Electrical System 2 | 248-278 | Wiring Diagram, Kra (Kubota Reverse Awareness) System, Battery, Starting System, Charging System, Ignition System |
| Mower | 279-293 | Mower Blade, PTO Belt, PTO Belt Support, Mower Belts, Mower Link, Blade Pulley, Blade Shaft, Tension Arm Bushing |
Every system also includes tightening torques.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Muffler cover mounting screw torque | 23.5 to 27.5 N·m (2.4 to 2.8 kgf·m, 17.4 to 20.3 ft-lbs) | p. 59 |
| Front bumper mounting screw torque | 23.5 to 27.5 N·m (2.4 to 2.8 kgf·m, 17.4 to 20.3 ft-lbs) | p. 59 |
| Brake Disk to Brake Pad Clearance | 0.76 mm | p. 178 |
| Front Wheel Alignment Toe-in | 0 to 10 mm | p. 186 |
| T1570, T1670 | ||
| Engine 1 Spark Plug Gap | 1.02 mm | p. 58 |
| Engine Oil Capacity (Crankcase) (T1570, T1670) | 1.9 L | p. 29 |
| Fuel Tank Capacity (T1570, T1670) | 11.0 L | p. 9 |
| Cylinder Head Surface Flatness (Engine 1) | 0.076 mm | p. 55 |
| T1770, T1870 | ||
| Engine 2 Spark Plug Gap | 0.75 mm | p. 109 |
| Engine Oil Capacity (Crankcase) (T1770, T1870) | 1.7 L | p. 29 |
| Fuel Tank Capacity (T1770, T1870) | 15.0 L | p. 9 |
| Cylinder Head Surface Flatness (Engine 2) | 0 to 0.08 mm | p. 109 |
