All 626 pages of this Kubota L2250 Workshop Manual (OEM #9Y011-10066) cover four tractors in one binding: the L2250, L2550(GST), L2850(GST), and L3250. You get 80 pages of hydraulic schematics with full three-point circuit routing, 28 pages of wiring diagrams spanning the charging, lighting, and easy-checker systems, and 150 pages of step-by-step separation procedures walking you through every major disassembly from clutch housing to mid case. Open to 300 pages of exploded views covering engine, transmission, front axle, and hydraulic components, plus 24 pages of troubleshooting charts and 27 pages of clearance data. Torque the cylinder head flange bolts to 93.2–98.1 N·m and rear wheel mounting hardware to 197–225 N·m before you button anything up. No more hunting forum threads for GST hydraulic pressure specs. Download now, search by keyword, and pull up the exact factory number on your first try.
What's Inside This Kubota L2250–L3250 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| Features | 8 | main shift and shuttle levers, power steering, Manual shuttle transmission, Mid-PTO, Twin plates single stage clutch, Dual stage clutch, Rops, Position control |
| Engine | 9-29 | Engine Body, Lubricating System, Cooling System, Fuel System, Inlet and Exhaust System |
| Clutch | 30-35 | Dry Type, Single Stage Clutch, Dual Stage Clutch |
| Transmission | 36-48 | Power Train, Speed Change Linkage Mechanism |
| Rear Axle | 49-51 | Differential Gear |
| Brakes | 52-53 | Brake Case, Cam Plate, Brake Cam, Brake Cam Lever, Parking Brake Lever, Brake Pedal, Brake Disc, Steel Ball |
| Front Axle | 54-56 | Structure, Front Wheel Alignment |
| Steering | 57-62 | Steering Linkage, Manual Steering, Power Steering |
| Three Point Hydraulic System | 63-82 | Hydraulic Circuit, Linkage Mechanism, Hydraulic Power Take Off |
| Electrical System | 83-110 | Wiring Diagram and Electrical Circuit, Starting System, Engine Key Switch Shut-Off System, Charging System, Lighting System, Easy Checker, Gauges |
| Tires | 111-120 | Specifications of Implement Limitations |
| General | 121-160 | Tractor Identification, General Precaution, Tightening Torques, Maintenance Check List, Check and Maintenance, Special Tools |
| Separation | 161-372 | Draining Oil and Coolnat, Removing Steering Gear Box, Separating Front Axle, Separating Engine From Clutch Housing, Separating Engine, Separating Clutch Housing and Mid Case |
| Hydraulic System | 373-442 | Three Point Hydraulic Pump, Oil Filter, Position Control Valve, Draft Control Valve, Relief Valve, Cylinder Safety Valve, Lowering Speed Adjusting Valve, Hydraulic Cylinder |
| Front-End Loader | 443-477 | Control Valve, Cylinder, Quick Coupler, Boom Cylinder, Bucket Cylinder |
| Mower | 478-493 | Suitable Tractor, Exterior View and Appellation, Power Transmission, Lifting Mechanism, Blade, Belt, Blade Boss, Gear Box |
| Rotary Tiller | 494-513 | Universal Joint, Blade Shaft, Bevel Pinion Shaft, Bevel Gear, Chain Case, Rotary Support, Bearing Case |
| L2550 Gst | 514-565 | Cylinder Block, Fuel System, Governor, Transmission, Shifting Mechanism, Oil Filter Bracket, Modulating Valve, Rotary Valve Assembly |
| L2850Gst | 566-616 | Oil Filter Bracket, Rotary Valve, Modulating Valve, Main Shift Valve Assembly, Shuttle Shift Spool Valve, Gate Valve Assembly, Accumulator, Clutch Pack |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Cylinder head screws and nuts (Flange type) torque | 93.2 to 98.1 N·m (9.5 to 10.0 kgf·m, 68.7 to 72.3 ft-lbs) | p. 198 |
| Front wheel mounting nut torque | 123.6 to 147.1 N-m (12.6 to 15.0 kgf-m, 91.1 to 108.5 ft-lbs) | p. 323 |
| Rear wheel mounting screw and nut torque | 197 to 225 N-m (20 to 23 kgf-m, 145 to 166 ft-lbs) | p. 323 |
| Clutch Pedal Free play | 20 to 25 mm (0.79 to 0.98 in.) | p. 245 |
| Clutch mounting screw and reamer screw torque (Single Stage Clutch) | 23.5 to 27.5 N·m (2.4 to 2.8 kgf·m, 17.4 to 20.3 ft-lbs) | p. 247 |
| Battery Specific Gravity at 20°C (68°F) (100% Charged) | 1.260 Sp. Gr. | p. 410 |
| Battery 20 ampere-hour rate Reference value | 110 Ah | p. 411 |
| Alternator Brush Length Allowable Limit | 10.0 mm (0.394 in.) | p. 408 |
| L2850GST (4WD) | ||
| GST Relief Valve Set pressure | 3.14 to 3.23 MPa (32.0 to 33.0 kgf/cm², 455 to 469 psi) | p. 601 |
| GST System Pressure Set pressure | 2.35 to 2.45 MPa (24.0 to 25.0 kgf/cm², 341 to 356 psi) | p. 601 |
| Hi-Lo shift spool valve mounting bolt torque | 17.7 N·m (1.8 kgf·m, 13.0 ft-lbs) | p. 602 |
| L2550 GST (4WD) | ||
| Hi-Lo shift spool valve mounting bolt torque | 17.7 N·m (1.8 kgf·m, 13.0 ft-lbs) | p. 551 |
Kubota L2250–L3250 Series Common Problems This Manual Covers
Kubota L2850GST tractor will not shift properly, grinds gears, or slips under a heavy load. p. 598
Check the GST relief valve set pressure on page 601. Connect a gauge and verify the pressure reads between 3.14 to 3.23 MPa (455 to 469 psi). If pressure is low, inspect the Hi-Lo shift spool valve. Torque the mounting bolts to 17.7 N·m (13.0 ft-lbs) as shown on page 602.
Manual Section: L2850GstHard shifting, chattering, or tractor creeping forward with the clutch pedal fully depressed. p. 243
Measure the clutch pedal free play. Adjust the linkage until you get 20 to 25 mm (0.79 to 0.98 in.) of play as specified on page 245. If the clutch still drags, inspect the disc and torque the mounting screws to 23.5 to 27.5 N·m (17.4 to 20.3 ft-lbs) referencing page 247.
Manual Section: ClutchBattery warning light flickers constantly or stays illuminated on the dash after engine startup. p. 404
Inspect the battery electrolyte specific gravity. A fully charged battery must read 1.260 Sp. Gr. at 20°C (68°F) according to page 410. Check the fan belt tension and adjust it to 7 to 9 mm of deflection. Inspect the alternator brushes and replace them if worn below the 10.0 mm limit on page 408.
Manual Section: Electrical SystemExcessive transmission noise and poor hydraulic implement response during cold weather operation. p. 547
Drain the transmission fluid and clean the strainer. Refill the system with exactly 27.0 L of fresh fluid for the GST model as noted on page 517. Inspect the piston plates for wear. Verify the flatness of Plate 1.2 and Plate 4.0 does not exceed the 0.30 mm allowable limit on page 565.
Manual Section: L2550 GstFrequently Asked Questions
What are the torque specs for Kubota L2250/L2550 GST/L2850 GST/L3250 head bolts, wheel nuts, and axle bolts?
For L2250/L2550/L2850 models, cylinder head screws and nuts should be tightened to 78.5 to 83.4 N·m (8.0 to 8.5 kgf·m, 57.8 to 61.5 ft-lbs). Front wheel mounting nuts require 123.6 to 147.1 N·m (12.6 to 15.0 kgf·m, 91.1 to 108.5 ft-lbs). Rear axle nuts should be tightened to 196 to 245 N·m (20 to 25 kgf·m, 145 to 181 ft-lbs).
What do Kubota L2250/L2550 GST/L2850 GST/L3250 error codes or warning lights mean?
The manual provides meanings for various warning lights. For X-type models, the Easy Checker indicates: Clogged Air Cleaner (lights up when clogged), Insufficient Battery Electrolyte (lights up when level drops), Insufficient Coolant (lights up when level drops), Improper Charging (lights up when charging is improper), and Low Engine Oil Pressure (lights up when pressure drops below approx. 49 kPa / 0.5 kgf/cm² / 7.1 psi).
How do I bleed the fuel system on a Kubota L2250/L2550 GST/L2850 GST/L3250?
To bleed the fuel system, first fill the fuel tank and open the fuel cock. Then, open the air vent cock on the fuel injection pump. Start the engine for about 1 minute, then stop it, and finally close the air vent cock. It is important to never bleed the fuel system when the engine is hot.
How do I adjust the clutch or shuttle shift on a Kubota L2550 GST or L2850 GST?
For L2550 GST and L2850 GST models, to adjust the shift cable (shuttle shift), set the main gear shift lever to "NEUTRAL" and the shuttle shift lever to F or R position. Adjust adjustors A and B so the tractor does not move in "NEUTRAL" but moves in 1st position. For clutch pedal play, the free play should be 20 to 25 mm (0.79 to 0.98 in).
What format is this Kubota L2250–L3250 Series manual in?
This is a 626-page searchable PDF ready for immediate download. Works on any device, pull it up on your phone while you're under the hood. No shipping, no waiting.
Am I able to print pages from this Kubota L2250–L3250 Series manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Are there wiring harness diagrams in this Kubota L2250–L3250 Series manual?
Yes. You'll find full electrical schematics with wire routing diagrams, connector identification, and circuit descriptions.
Document Quality
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