This is the factory shop manual for the Kioti RX6020C, RX6620C, RX7320C, and RX7620C tractors, 818 pages covering service, repair, and troubleshooting for all four cab and platform models and their 4F243T series turbo-diesel engines. It applies to machines built across the 2004 to 2013 range.Inside you get identification and specifications, full engine service, clutch, transmission with shuttle and range shift detail, rear and front axle work, wet multi-plate brakes, power steering, the hydraulic system with joystick and remote valves, and a large electric and calibration section with full circuit diagrams.Each chapter carries the torque values, clearances, and exploded views a technician needs, from cylinder head bolt steps to wheel nut figures. Whether you are servicing the engine, tracing a weak loader, or chasing an electrical or transmission fault, this manual gives you the factory procedures. It downloads as a printable PDF you can keep on the shop computer or print by the page.
What's Inside This Kioti RX6020–RX7620 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 19-48 | Description for Symbols and Abbreviations, Tractor Exterior View, Identification Number (Tractor Serial Number, Engine Serial Number, Transmission Serial Number), Dimensions |
| Engine | 49-216 | Engine Identification (Engine Epa Decal, Engine Number, Assignment Standard for Engine Model Code) |
| Clutch | 217-230 | Structure and Function |
| Transmission | 231-292 | Structure and Operating Principle (Main Shift Section, Operating Principle of Synchronizer, Shuttle Shift Section, Range Shift Section, Shift Link System, Shift Link for Main Shift Section, Shift Link for Range Shift Section, PTO, PTO Clutch Pack, Front Wheel Drive) |
| Rear Axle | 293-320 | Structure and Function (Rear Axle Section Structure, Power Transfer, Operating Principle of Differential System, Operating Principle of Differential Lock System) |
| Brake | 321-336 | Structure and Operating Principle |
| Front Axle | 337-372 | Structure and Operating Rinciple (Front Axle Power Transfer, Load Transfer) |
| Steering System | 373-398 | Specifications and Tightening Torque (Specifications for Steering System, Hydraulic Pump, Power Steering Unit, Steering Cylinder, Tightening Torque for Major Components) |
| Hydraulic System | 399-486 | Structure and Operating Principle (Component Arrangement, Exploded View of Hydraulic Line, Hydraulic Circuit, Operating Diagram, Implement Section, Main Section, Components, Hydraulic Filter, Gear Pump, Modulator Valve, Shuttle Valve, Oil Cooler, Joystick Valve, Remote Hydraulic Valve, Mls Valve, Link Mechanism in the Lifting Cylinder, Lift Cylinder) |
| Electric System & Calibration | 487-726 | Circuit and Component Location (Overall Circuit Diagram, Location of Electronic Components and Sensors) |
| Cabin | 727-762 | Components (Interior Devices, Switch Panel, PTO Switch, Cabin Fuse Box, Inside Rear View Mirror, Front Wiper Motor, Rear Wiper Motor, Door Latch Assembly, Side Window Handle, Rear Window Handle, Power Socket, Air Cylinder, Speaker, External Devices, Exterior Filter Assembly, Front/Rear Work Lamp, Tail Lamp, Front/Rear Wipers, Washer Fluid Tank, Backup Lamp, 7-Pin Socket, Antenna, Front Combination Lamp) |
| Air Conditioning & Heater | 763-808 | A/C Component Removal and Installation (Condenser and Receiver Drier Removal, A/C Filter Removal, A/C Assembly Disassembly, A/C Controller Removal, Compressor Removal, Compressor Installation) |
| Index | 809-818 | - |
Every system also includes an exploded view.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Front wheel bolt/nut torque | 260 ~ 304 Nm (26.5 ~ 31 kgf-m, 191 ~ 223 lbf-ft) | p. 41 |
| Rear wheel nut torque | 280 ~ 319 Nm (28.0 ~ 32.5 kgf-m, 202 ~ 234 lbf-ft) | p. 41 |
| Battery capacity | 12 V 100 Ah | p. 489 |
| Starter relay specification | 5P, 12 V, 40 A | p. 489 |
| Hydraulic filter filtering dimension | 4,100 cm² ± 10% | p. 414 |
| Hydraulic filter number of folds | 55 ± 5 | p. 414 |
| Pre-filter foreign material thickness | over 10 microns | p. 96 |
| Pre-filter differential pressure | 10 kPa (0.1 kgf/cm², 1.45 psi) | p. 96 |
| Thermostat valve opening temperature at beginning | 69.5 ~ 72.5°C (157.1 ~ 162.5°F) | p. 64 |
| Thermostat opened completely (height: 8 mm) | 85°C (185°F) | p. 64 |
| Brake type | wet multi-plate disc | p. 322 |
| Brake pedal free play | 25 ~ 40 mm (0.984 ~ 1.154 in.) | p. 322 |
Kioti RX6020–RX7620 Series Common Problems This Manual Covers
No-crank or intermittent starting
A weak battery, a starter relay fault, a neutral-safety switch, or a charging-system problem leaves these tractors slow to crank or dead, often with dash warnings. The electric and calibration chapter covers the circuit diagrams and component locations to trace it.
Manual Section: Electric & Calibration p. 487Loader or three-point hitch slow or weak
Low fluid, a clogged filter, a suction-side air leak, or a worn pump or valve leaves the hydraulics slow or unable to lift. The hydraulic chapter covers the component arrangement, filter specification, valves, and lift cylinder service.
Manual Section: Hydraulic System p. 399Shuttle or transmission engagement problems
A fluid condition issue, a linkage adjustment fault, or an internal problem leaves the tractor slow to engage or losing drive under load. The transmission chapter details the main, shuttle, and range shift sections and the shift link system.
Manual Section: Transmission p. 231Engine overheating or repeated temperature warnings
Low coolant, a blocked radiator screen, a belt or fan issue, or a failing thermostat drives overheating and power loss. The engine chapter covers the thermostat opening temperatures and the cooling-system checks.
Manual Section: Engine p. 49Brake weakness or park brake not holding
Worn plates, contamination, or out-of-spec adjustment reduce braking on these wet multi-plate brakes. The brake chapter covers the structure and operating principle, the pedal free play, and the plate and disc wear limits.
Manual Section: Brake p. 321Heavy or unresponsive steering
A low fluid level, air in the circuit, or a worn steering unit or pump makes the power steering heavy or slow. The steering chapter lists the steering system specifications, relief pressure, and tightening torques.
Manual Section: Steering System p. 373Frequently Asked Questions
Which models does this manual cover?
It is the Kioti RX6020C, RX6620C, RX7320C, and RX7620C shop manual, covering all four models and their 4F243T series turbo-diesel engines across engine, drivetrain, hydraulic, and electrical systems in 818 pages.
Are wheel lug torque figures included?
Yes. The General chapter lists the front and rear wheel bolt and nut torque values with the tire and maintenance data, so you can reseat wheels to the correct specification. p. 19
Does it help diagnose weak hydraulics?
Yes. The Hydraulic System chapter covers the filter specification, main relief pressure, valves, and lift cylinder, which is where most weak-loader and slow-hitch faults are traced. p. 399
What do I get after purchasing this Kioti RX6020–RX7620 Series manual?
You get a 818-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone — bring it right to the shop floor.
Can I print this Kioti RX6020–RX7620 Series manual?
None at all — the PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Are hydraulic system diagrams in this Kioti RX6020–RX7620 Series Shop Manual?
Yes, this Kioti RX6020–RX7620 Series Shop Manual includes hydraulic system diagrams, circuit schematics, and component specifications.
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