Part of the Kubota Repair Manuals.
This is the Kubota L3130, L3430, L3830, L4330, L4630 and L5030 tractor Service Manual (publication 97897-13050), a 682-page PDF covering the full L30 series of compact utility tractors. It documents the mechanism and the servicing of every system on the machine and includes a supplement for the Oceania-spec tractors.
System coverage runs from the diesel engine and clutch through the transmission, rear axle, brakes, front axle and power steering, into the hydraulic and three-point hitch system, the electrical system with ROPS and cabin wiring diagrams, and the cab air conditioning. A separate 4WD front axle section and a full color wiring diagram section round it out.
Use it to set servicing specifications and torques, adjust clutch and brake pedal free travel, service the hydraulics, trace faults on the wiring diagram, and rebuild the 4WD front axle. It is a downloadable, printable PDF for shop or field use.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Instructions | 3-9 | Operating Safety Precautions and Warning Decal Locations |
| Specifications | 10-21 | L3130 Specifications, L3430 Specifications, L3830 Specifications, L4330 Specifications, L4630 Specifications, L5030 Specifications, Travelling Speeds [Manual Transmission Type] |
| General | 22-91 | Tractor Identification (Model Name and Serial Numbers, Cylinder Number), Handling Precautions for Electrical Parts and Wiring (Battery, Fuse, Connector, Handling of Circuit Tester) |
| Engine | 92-170 | Features, Engine Body (Piston, Built-In Dynamic Balancer, Half-Floating Head Cover), Cooling System (Bottom Bypass System), Fuel System, Lubricating System |
| Clutch | 171-190 | Clutch Pedal, Clutch Disc, Pressure Plate, Diaphragm Spring, Clutch Holder, Clutch Lever, Thrust Ball Bearing |
| Transmission | 191-355 | Manual Transmission Model (Structure, Power Train for Traveling Gear, Shift Linkage Mechanism) |
| Rear Axle | 356-366 | Differential Gear Shaft, Brake Case, Brake Disc, Differential Pinion, Ring Gear, Final Gear, Differential Lock Shifter |
| Brakes | 367-382 | Brake Pedal, Brake Case |
| Front Axle | 383-413 | Propeller Shaft, Power Steering Hoses, Steering Cylinder, Tie-Rods, Bevel Gear Case, Front Gear Case, Axle Flange |
| Steering | 414-444 | Structure, Hydraulic Circuit, Hydraulic Pump, Steering Controller (Control Valve, Metering Device, Relief Valve, Oil Flow), Steering Cylinder |
| Hydraulic System | 445-485 | Structure (Manual Transmission and Glide Shift Transmission, Hydrostatic Transmission), Hydraulic Circuit (Manual Transmission, Glide Shift Transmission |
| Electrical System | 486-582 | Wiring Diagram (ROPS Type, Cabin Type), Electronic Control Panel (System Outline and Electrical Circuit, Construction and Function of Components, Control System) |
| Cabin | 583-638 | Air Conditioner System (Outline of Air Conditioning System, System Control, Electrical System), Servicing Specifications, Tightening Torques |
| Supplement | 639-646 | Main Specifications of L30 Series Tractors for Oceania, L3130 Specifications, L3430 Specifications, L3830 Specifications, L4330 Specifications, L4630 Specifications |
| A6 Front Axle | 647-671 | 4WD Type, 4WD Type (for L5030), 4WD Type (Continued), Toe-In, Axial Sway of Front Wheel, Adjusting Front Axle Pivot (4WD), Front Wheel Steering Angle (for L5030) |
| A9 Electrical System | 672-682 | Wiring Diagram (Color of Wiring), ROPS Type (Mechanical Transmission Model), HST Model, Cabin Type (Body Harness), Cabin Harness |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| L3130, L3430 | ||
| Engine crankcase capacity (with filter) (L3130, L3430) | 5.7 L (6.0 U.S.qts., 5.0 Imp.qts.) | p. 32 |
| Transmission case capacity (L3130, L3430) | 42 L (11.1 U.S.gals., 9.2 Imp.gals.) | p. 32 |
| L3830 | ||
| Engine crankcase capacity (with filter), L3830 | 6.7 L (7.1 U.S.qts., 5.9 Imp.qts.) | p. 32 |
| L3130, L3430 (ROPS) | ||
| Engine coolant capacity (L3130, L3430 (ROPS)) | 6.0 L (6.3 U.S.qts., 5.3 Imp.qts.) | p. 32 |
| L3430 (CABIN) | ||
| Engine coolant capacity, L3430 (CABIN) | 7.2 L (7.6 U.S.qts., 6.3 Imp.qts.) | p. 57 |
| L3830, L4330, L4630 | ||
| Transmission case capacity (L3830, L4330, L4630) | 43 L (11.4 U.S.gals., 9.5 Imp.gals.) | p. 32 |
| L3130, L3430, L3830 | ||
| Front axle case oil capacity (4WD) (L3130, L3430, L3830) | 6.5 L (6.9 U.S.qts., 5.7 Imp.qts.) | p. 32 |
| L4330, L4630, L5030 | ||
| Front axle case oil capacity (4WD) (L4330, L4630, L5030) | 9.0 L (9.5 U.S.qts., 7.9 Imp.qts.) | p. 33 |
| All Models | ||
| Fuel tank capacity | 40 L (10.6 U.S.gals., 8.8 Imp.gals.) | p. 32 |
| Engine oil change interval | 50 Hours | p. 35 |
| Engine oil filter cartridge replacement interval | 50 Hours | p. 35 |
| Hydraulic oil filter cartridge replacement interval | 200 Hours | p. 35 |
