All 818 pages of this Kioti RX6020–RX7620 Series Shop Manual (OEM #DU90-W00) exist for one purpose: returning your 2004–2013 RX6020C, RX6620C, RX7320C, or RX7620C tractor to factory spec. Inside, you get hydraulic circuit diagrams with full fluid routing through the MLS load-sensing valve, gear pump, modulator, and shuttle systems, plus wiring schematics covering every circuit from bonnet to cabin controls. Open to step-by-step service procedures, DTC fault codes with corrective actions, electrical troubleshooting, and the complete Power Shuttle calibration sequence for PC models. Front wheel lug nuts torque to 260–304 Nm; rear wheel nuts get 280–319 Nm. No more chasing gremlins with a wiring diagram you found on a forum. Bookmarked by system, keyword-searchable, works on any device. Grab your tablet, walk to the tractor, and get to work.
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
Kioti RX6020C no-crank or slow crank after glow plug cycle, electrical warnings on dash p. 489
Check battery terminals for corrosion and test load voltage; spec calls for 12V 100Ah (page 489). Inspect the neutral-safety switch seat and starter relay connections. Pull active fault codes using the diagnostic scanner; the error code table lists electrical faults by circuit. Clean contacts and retest before condemning the starter.
Manual Section: Electrical System Troubleshooting & Diagnostics3-point hitch or front loader lifts slowly, won't reach full height p. 400
Check hydraulic fluid level first; the system holds 60L (15.9 U.S.gal). Verify main relief pressure at 185 kgf/cm² (page 400); low pressure points to a worn gear pump or clogged suction filter. Torque the suction pipe mounting bolt to 9.8 Nm (page 401) after any filter service, then retest lift speed.
Manual Section: Hydraulic System Troubleshooting & RepairShuttle shift won't engage smoothly or tractor loses forward drive under load p. 231
Inspect transmission fluid; total capacity is 60L (15.9 U.S.gal, page 40). Check for fault codes that flag shuttle-shift circuit faults. Verify linkage adjustment is not binding and shifter travel is complete. If fluid smells burnt or appears milky, drain and refill before diagnosing the PTO clutch pack or synchronizer internals.
Manual Section: Transmission Troubleshooting & RepairEngine temperature warning triggers repeatedly, power drops or engine overheats under field load p. 119
Verify coolant level against the 9.5L (2.5 U.S.gal) capacity (page 40) and top off with the correct mix. Clean the radiator screen of all debris. Test the thermostat: it should begin opening at 69.5~72.5°C and be fully open at 85°C (page 64). Check fan belt tension and follow engine troubleshooting procedures.
Manual Section: Engine Troubleshooting & RepairBrake pedal feels soft or spongy, tractor pulls to one side when stopping p. 322
Measure pedal free play; spec is 25~40 mm with no more than 5 mm difference between left and right pedals (page 322). Adjust cam lever free play as needed. Inspect wet multi-disc brake components: disc minimum thickness is 4.0 mm, plate minimum is 2.0 mm. Follow brake adjustment and inspection procedures beginning at page 321.
Manual Section: Brake Troubleshooting & RepairFrequently Asked Questions
How do I reset the KIOTI RX6020C/RX6620C/RX7320C/RX7620C dashboard or service light?
To clear dashboard warning lights related to engine malfunctions, you typically need to erase Diagnostic Trouble Codes (DTCs) using a diagnostic scanner. The scanner's 'FAULT CODES' menu provides an 'Erase DTC' function. After erasing, if the fault is resolved, the warning light should turn off. For specific calibration procedures, turning the ignition switch to 'OFF' stores the set values.
How do I reset the KIOTI RX6020C/RX6620C/RX7320C/RX7620C ECU error code?
ECU error codes, also known as Diagnostic Trouble Codes (DTCs), can be cleared using a diagnostic scanner. Navigate to the 'FAULT CODES' menu on the scanner and select the 'Erase DTC' function. After successful erasure, the fault would not be raised. For manual regeneration, ensure the vehicle is in a safety zone, the brake is locked, and the engine coolant is over 60°C, then push the manual regeneration switch for 2 seconds or use the scan tool.
What do KIOTI RX6020C/RX6620C/RX7320C/RX7620C error codes mean?
KIOTI RX6020C/RX6620C/RX7320C/RX7620C error codes are Diagnostic Trouble Codes (DTCs) unified by SAE, indicating specific engine malfunctions. These codes trigger various actions by the ECU, such as illuminating the Engine CHECK lamp, stopping CCRT regeneration, deactivating injectors, or reducing engine torque by 3% to 50%. The manual provides a detailed table listing DTC codes, fault names, descriptions, and corresponding actions for troubleshooting.
How do I clear a check engine light on a KIOTI RX6020C/RX6620C/RX7320C/RX7620C?
To clear a check engine light, you need to erase the Diagnostic Trouble Codes (DTCs) using a diagnostic scanner. The scanner's 'FAULT CODES' menu includes an 'Erase DTC' function. The check engine light illuminates when the engine fuel system or major electric components are malfunctioning, and clearing the associated fault codes will turn off the light once the issue is resolved.
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.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy the full text content. The text is consistently crisp and clear throughout, ensuring easy readability. Diagrams and illustrations are generally sharp, with all labels clearly legible, though some tractor exterior views are raster images. The pages are clean with no scan artifacts or marks, but please note that pages 2, 4, 6, and 48 are intentionally blank or designated for notes.
Reviews
There are no reviews yet.