This is the Kubota L2800 and L3400 Workshop Manual, the factory service manual for both compact utility tractors. It covers the L2800 with its D1403-M-E2A diesel and the L3400 with the D1703-MA-E2A, in 2WD and 4WD form, with manual and hydrostatic (HST) transmissions.The manual runs from tractor identification and maintenance schedules through the engine, clutch, transmission, rear and front axles, brakes, steering, hydraulic system, and full electrical system. Every mechanical section includes troubleshooting, servicing specifications, tightening torques, and step-by-step checking, disassembly, and assembly.For an owner or independent mechanic this PDF download is the reference for setting clearances, torquing fasteners to factory values, and tracing wiring faults. It is text-searchable and prints cleanly, so you can keep it on a laptop in the shop or run off just the pages you need.
What's Inside This Kubota L2800, L3400 Manual
| System | Pages | Key Topics |
|---|---|---|
| G General | - | Tractor Identification (Model Name and Serial Numbers, Cylinder Number), Handling Precautions for Electrical Parts and Wiring (Battery, Fuse, Connector), Lubricants |
| Engine | - | Fuel System, Cooling System, Features, Lubricating System, Servicing Specifications, Checking |
| Clutch | - | Structure, Servicing Specifications, Checking, Disassembling and Servicing (Checking and Adjusting, Preparation, Disassembling and Assembling) |
| Transmission(Manual Type) | - | Structure (L2800, L3400), Troubleshooting, Servicing Specifications, Tightening Torques, Disassembling and Servicing (Preparation, Disassembling and Assembling, Servicing) |
| H3 Transmission(Hst Type) | - | Structure, Power Train for Travelling, Hydraulic Transmission (HST), Oil Flow, Operation, Control Linkage, Range Gear Shift Section |
| Rear Axle | - | Structure, Disassembling and Servicing (Preparation, Disassembling Rear Axle) |
| Brakes | - | Operation, Features, Servicing Specifications, Checking, Disassembling and Servicing (Checking and Adjusting, Preparation, Disassembling and Assembling) |
| Front Axle | - | Structure (2WD Type, 4WD Type), Servicing Specifications, Checking, Disassembling and Servicing (Checking and Adjusting, Preparation, Disassembling and Assembling) |
| Steering | - | Lubricating System (Linkage, Steering Gear Box), Servicing Specifications, Checking, Disassembling and Servicing (Checking and Adjusting, Preparation, Disassembling and Assembling) |
| Hydraulic System | - | Hydraulic Circuit, Hydraulic Cylinder, Linkage Mechanism, Front Hydraulic Block, Disassembling and Assembling (Checking and Adjusting, Servicing), Servicing Specifications |
| Electrical System | - | Wiring Diagram, Operator Presence Control, Servicing Specifications, Checking, Disassembling and Servicing (Checking and Adjusting, Disassembling and Assembling) |
Every system also includes tightening torques and troubleshooting.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder head bolt torque | 93.1 to 98.0 N·m (9.5 to 10.0 kgf·m, 68.7 to 72.3 lbf·ft) | p. 97 |
| Front wheel mounting screw and nut or lug nut torque | 137 N·m (14.0 kgf·m, 100 lbf·ft) | p. 41 |
| Rear wheel mounting screws and nuts torque | 215 N·m (22.0 kgf·m, 160 lbf·ft) | p. 41 |
| Implement Does Not Rise (Not Noise) - Control linkage improperly adjusted solution | Adjust | p. 327 |
| Radiator screen maintenance | Check and clean | p. 30 |
| Engine oil filter replacement interval | every 200 Hr | p. 27 |
| Transmission case capacity (Manual 2WD) | 27.0 L (7.1 U.S.gals, 5.9 Imp.gals) | p. 24 |
| Transmission case capacity (Manual 4WD) | 27.5 L (7.3 U.S.gals, 6.1 Imp.gals) | p. 24 |
| Seat belt and ROPS attaching hardware maintenance | Check the condition | p. 30 |
| ROPS mounting screw torque | 167 to 196 N·m (17.0 to 20.0 kgf·m, 123 to 144 lbf·ft) | p. 185 |
| Clutch Pedal Free Travel | 20 to 30 mm (0.8 to 1.2 in.) | p. 156 |
Kubota L2800, L3400 Common Problems This Manual Covers
Engine overheating or coolant loss
Overheating on the L2800 or L3400 is commonly a clogged radiator screen, low coolant, or neglected cooling maintenance. The Engine section covers the cooling system, checks, and servicing specifications.
Manual Section: 1 Engine p. 81Clutch drag or slip
A clutch that drags, slips, or has lost free travel makes shifting difficult on the manual-transmission tractors. The Clutch section covers free-travel adjustment, wear limits, and disassembly.
Manual Section: 2 Clutch p. 150Weak or uneven braking
Soft brakes or excessive pedal travel trace to worn discs or linkage out of adjustment. The Brakes section gives the free-travel spec, disc wear limits, and adjustment steps.
Manual Section: 5 Brakes p. 262Three-point hitch will not raise
An implement that will not lift often points to control linkage adjustment or a hydraulic fault. The Hydraulic System section covers the circuit, cylinder, and linkage servicing.
Manual Section: 8 Hydraulic System p. 319No-start or charging faults
No-crank, no-charge, or intermittent electrical faults trace to the battery, starter, or wiring. The Electrical System section includes the wiring diagram and component checks.
Manual Section: 9 Electrical System p. 351HST loses power under load
A hydrostatic tractor that slows on hills or under load points to the HST or its charge circuit. The HST transmission section covers structure, checks, and servicing for the hydrostatic drive.
Manual Section: H3 Transmission(Hst Type) p. 210Frequently Asked Questions
Which models and engines does this manual cover?
It covers the Kubota L2800 and L3400 compact tractors in 2WD and 4WD. The L2800 uses the D1403-M-E2A diesel and the L3400 uses the D1703-MA-E2A, with both manual and HST transmissions documented.
What is the cylinder head bolt torque?
The manual specifies a cylinder head bolt torque of 93.1 to 98.0 N·m (9.5 to 10.0 kgf·m, 68.7 to 72.3 lbf·ft). Full engine tightening torques are listed with the servicing specifications. p. 97
Does it cover both manual and hydrostatic transmissions?
Yes. A separate section documents the manual-type transmission starting on page 170, and another covers the hydrostatic (HST) type, so you can service whichever your tractor has. p. 170
What transmission and hydraulic fluid does it specify?
The manual calls for KUBOTA UDT or SUPER UDT fluid in the transmission case, and lists the case capacities by drivetrain. Fluid type and capacities are given in the maintenance data. p. 24
Will this Kubota L2800 Service Manual download right away?
Download the complete 386-page searchable Service Manual right away. It opens on any device, from the laptop at your desk to a phone in the field.
Are there any print restrictions on this Kubota L2800 manual?
Yes. Print as many copies as you want; there are no restrictions. Plenty of mechanics print just the section they need and carry it out to the shop floor.
Are there hydraulic schematics in this Kubota L2800 manual?
Full hydraulic system diagrams are included, covering circuits, valve locations, and hydraulic component specs for the Kubota L2800, L3400.
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