Page 1 Tractor Manuals Scotland WORKSHOP MANUAL TRACTOR L2800,L3400 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 2 Tractor Manuals Scotland TO THE READER This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of L2800 and L3400. It is divided into three parts, "General", "Mechanism" and "Servicing". General Information on the tractor identification, the general precautions, maintenance check list, check and maintenance and special tools are described.
Page 3 Tractor Manuals Scotland L2800, L3400, WSM SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS SAFETY FIRST This symbol, the industry’s “Safety Alert Symbol”, is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully.
Page 4 Tractor Manuals Scotland L2800, L3400, WSM SAFETY INSTRUCTIONS SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Do not alter or remove any part of machine safety system. • Before starting the engine, make sure that all shift levers are in neutral positions or in disengaged positions.
Page 5 Tractor Manuals Scotland L2800, L3400, WSM SAFETY INSTRUCTIONS AVOID FIRES • Fuel is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or sparks in your working area. • To avoid sparks from an accidental short circuit, always disconnect the battery negative cable first and connect it last.
Page 6 Tractor Manuals Scotland L2800, L3400, WSM SAFETY INSTRUCTIONS PREPARE FOR EMERGENCIES • Keep a first aid kit and fire extinguisher handy at all times. • Keep emergency numbers for doctors, ambulance service, hospital and fire department near your telephone. Tractor Manuals Scotland - Please Do Not Copy...
Page 7 Tractor Manuals Scotland L2800, L3400, WSM SAFETY INSTRUCTIONS SAFETY DECALS The following safety decals are installed on the machine. If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list.
Page 8 Tractor Manuals Scotland L2800, L3400, WSM SAFETY INSTRUCTIONS Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 9 Tractor Manuals Scotland L2800, L3400, WSM SAFETY INSTRUCTIONS Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 10 Tractor Manuals Scotland L2800, L3400, WSM SPECIFICATIONS SPECIFICATIONS L2800 L3400 Model PTO power 17.9 kW (24.0 HP) 21.6 kW (29.0 HP) Maker KUBOTA Model D1403-M-E2A D1703-MA-E2A Type Vertical, water-cooled, 4-cycle diesel Number of cylinders 80 × 92.4 mm (3.1 × 3.6 in.) 87 ×...
Page 11 Tractor Manuals Scotland L2800, L3400, WSM SPECIFICATIONS (continued) L2800 L3400 Model Hydraulic control system Position control Pump capacity (main) 24.7 L/min (6.5 gal/min) 23.9 L/min (6.3 gal/min) Pump capacity (PS) 15.0 L/min (4.0 gal/min) 14.5 L/min (3.8 gal/min) Hydraulic Three point hitch...
Page 12 Tractor Manuals Scotland L2800, L3400, WSM SPECIFICATIONS L2800 L3400 Model 4WD HST 4WD HST PTO power* 16.8 kW (22.5 HP) 20.5 kW (27.5 HP) Maker KUBOTA Model D1403-M-E2A D1703-MA-E2A Type Indirect injection, Vertical, Water-cooled 4 cycle diesel Number of cylinders 80 ×...
Page 13 Tractor Manuals Scotland L2800, L3400, WSM SPECIFICATIONS (Continued) L2800 L3400 Model 4WD HST 4WD HST Hydraulic control system Position control Pump capacity (main) 24.7 L/min (6.5 gal/min) 23.9 L/min (6.3 gal/min) Pump capacity (PS) 15.0 L/min (4.0 gal/min) 14.5 L/min (3.8 gal/min)
Page 14 Tractor Manuals Scotland L2800, L3400, WSM DIMENSIONS DIMENSIONS Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 15 Tractor Manuals Scotland L2800, L3400, WSM DIMENSIONS Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 16 Tractor Manuals Scotland GENERAL Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 17: Table Of Contents
Tractor Manuals Scotland GENERAL CONTENTS 1. TRACTOR IDENTIFICATION ................. G-1 2. GENERAL PRECAUTIONS ................G-2 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING .. G-3 [1] WIRING...................... G-3 [2] BATTERY....................G-5 [3] FUSE......................G-5 [4] CONNECTOR .................... G-5 4. LUBRICANTS, FUEL AND COOLANT ............G-7 5.
Page 18: Tractor Identification
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL 1. TRACTOR IDENTIFICATION When contacting your local KUBOTA distributor, always specify engine serial number, tractor serial number and hour meter reading. (1) Tractor Identification Plate (3) Engine Serial Number (2) Tractor Serial Number...
Page 19: General Precautions
Screws, bolts and nuts should be installed in their original position to prevent reassembly errors. • When special tools are required, use KUBOTA genuine special tools. Special tools which are not frequently used should be made according to the drawings provided.
Page 20: Handling Precautions For Electrical Parts And Wiring
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING To ensure safety and prevent damage to the machine and surrounding equipment, heed the following precautions in handling electrical parts and wiring. IMPORTANT • Check...
Page 21 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL • Securely clamp, being careful not to damage wiring. (1) Clamp (3) Clamp • Wind Clamp Spirally (4) Welding Dent (2) Wire Harness W1011458 • Clamp wiring so that there is no twist, unnecessary sag, or excessive tension, except for movable part, where sag be required.
Page 22: Battery
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [2] BATTERY • Take care not to confuse positive and negative terminal posts. • When removing battery cables, disconnect negative cable first. When installing battery cables, check for polarity and connect positive cable first.
Page 23 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL • In separating connectors, do not pull wire harnesses. • Hold connector bodies to separate. (A) Correct (B) Incorrect W1012272 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 24: Lubricants, Fuel And Coolant
6.1 Imp.gals 23.5 L Transmission case 6.2 U.S.gals (HST (4WD)) 5.2 Imp.gals 4.5 L KUBOTA UDT or SUPER UDT fluid* or SAE80 Front axle case (4WD) 4.8 U.S.qts - SAE 90 gear oil 3.9 Imp.qts Greasing Place No. of greasing point...
Page 25 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL NOTE • Engine Oil: Oil used in the engine should have an American Petroleum Institute (API) service classification and Proper SAE Engine Oil according to the ambient temperatures as shown above: • With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use of a low-sulfur fuel on on-road vehicle engines.
Page 26: Tightening Torques
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL 5. TIGHTENING TORQUES [1] GENERAL USE SCREWS, BOLTS AND NUTS Screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual should be tightened according to tables below. Indication on top of...
Page 27: Maintenance
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL 6. MAINTENANCE Period Indication on hour meter After Reference 50 100 150 200 250 300 350 400 450 500 550 600 650 700 since page Item every Engine oil Change G-14 100 Hr...
Page 28 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Period Indication on hour meter After Reference since page 50 100 150 200 250 300 350 400 450 500 550 600 650 700 Item every Toe-in Adjust G-32 200 Hr every Check...
Page 29 • *5 : When the battery is used for less than 100 hours per year, check the battery condition by reading the indication annually. • The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S.EPA nonroad emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the above instruction.
Page 30: Check And Maintenance
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL 7. CHECK AND MAINTENANCE CAUTION • Be sure to check and service the tractor on a flat place with engine shut off, the parking brake on and chock the wheels. [1] DAILY CHECK To prevent trouble from occurring, it is important to know the condition of the tractor.
Page 31: Check Points Of Initial 50 Hours
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [2] CHECK POINTS OF INITIAL 50 HOURS Changing Engine Oil CAUTION • Before changing oil, be sure to stop the engine. 1. Start and warm up the engine for approx. 5 minutes.
Page 32 3. Drain the transmission fluid. 4. After draining, screw in the drain plugs (1). 5. Fill with the new KUBOTA SUPER UDT fluid up to the upper line of the gauge (2). 6. After running the engine for a few minutes, stop it and check the fluid level again, if low, add fluid prescribed level (A).
Page 33 3. Drain the transmission fluid. 4. After draining, screw in the drain plugs (1). 5. Fill with the new KUBOTA SUPER UDT fluid up to the upper line of the gauge (2). 6. After running the engine for a few minutes, stop it and check the fluid level again, if low, add fluid prescribed level (A).
Page 34 11.Make sure that the transmission fluid doesn't leak through the seal of the filter. IMPORTANT • To prevent serious damage to the hydraulic system. Use only a genuine KUBOTA filter or its equivalents. (1) Drain Plug A : Oil level is acceptable within this (2) Gauge range.
Page 35 11.Make sure that the transmission fluid doesn't leak through the seal of the filter. IMPORTANT • To prevent serious damage to the hydraulic system. Use only a genuine KUBOTA filter or its equivalents. (1) Drain Plug A : Oil level is acceptable within this (2) Gauge range.
Page 36 5. Fill with the new oil up to the check plug (2) port. 6. After filling, reinstall the check plug (2) and filling port plug. IMPORTANT • Use KUBOTA SUPER UDT fluid or SAE 80, 90 gear oil. Refer to "LUBRICANTS, FUEL AND COOLANT". (See page G-7.) 4.5 L...
Page 37 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Adjusting Clutch Pedal Free Travel (L3400) 1. At first adjust the clutch pedal free travel, as is mentioned above. 2. Remove the cover located on the right side of flywheel housing case.
Page 38: Check Points Of Every 50 Hours
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [3] CHECK POINTS OF EVERY 50 HOURS Greasing 1. Apply a grease to the following position as figures. NOTE • Apply a small amount of multipurpose grease to the following points every 50 hours.
Page 39 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Checking Engine Start System (Manual Transmission Type) CAUTION • Do not allow anyone near the tractor while testing. • If the tractor does not pass the test do not operate the tractor.
Page 40 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Checking Engine Start System (HST Type) CAUTION • Do not allow anyone near the tractor while testing. • If the tractor does not pass the test do not operate the tractor. Test : Switch for the speed control pedal 1.
Page 41 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Checking Wheel Mounting Screws and Nuts Tightening Torque CAUTION • Never operate tractor with a loose rim, wheel or axle. • Any time screws and nuts are loosened, retighten to specified torque.
Page 42: Check Points Of Every 100 Hours
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [4] CHECK POINTS OF EVERY 100 HOURS Changing Engine Oil 1. See page G-14. W1032035 Cleaning Air Cleaner Element 1. Remove the element (2). 2. Clean the element : • When dry dust adheres to the element, blow compressed air from the inside turning the element.
Page 43 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Cleaning Fuel Filter This job should not be done in the field, but in a clean place. 1. Loosen and remove the filter bowl, and rinse the inside with kerosene. 2. Take out the element and dip it in the kerosene to rinse.
Page 44 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Checking Fuel Line CAUTION • Stop the engine when attempting the check and change prescribed below. • Remember to check the fuel line periodically. The fuel line is subject to wear and aging, fuel may leak out onto the running engine, causing a fire.
Page 45 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Checking Battery Condition DANGER • Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark. Otherwise, the battery component parts may prematurely deteriorate, which may shorten the battery's service life or cause an explosion.
Page 46 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Battery Charging CAUTION • When the battery is being activated, hydrogen and oxygen gases in the battery are extremely explosive. Keep open sparks and flames away from the battery at all times, especially when charging the battery.
Page 47: Check Points Of Every 200 Hours
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [5] CHECK POINTS OF EVERY 200 HOURS Replacing Engine Oil Filter Cartridge 1. See page G-14. W1034421 Replacing Hydraulic Oil Filter / Replacing Transmission Oil Filter [HST Type] 1. See page G-17, 18.
Page 48 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Checking Power Steering Line / Checking HST Oil Line [HST Type] 1. Check to see that all lines and hose clamps are tight and not damaged. 2. If hose and clamps are found worn or damaged, replace or repair them at once.
Page 49: Check Points Of Every 400 Hours
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Adjusting Toe-in 1. Park the tractor on the flat place. 2. Inflate the tires to the specified pressure. 3. Turn steering wheel so front wheels are in the straight ahead position. 4. Lower the implement, lock the parking brake and stop the engine.
Page 50: Check Points Of Every 600 Hours
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Lubricating Grease Fitting [2WD] 1. Detach the cover (1), and apply bearing grease. (1) Front Wheel Hub Cover W1036668 [7] CHECK POINTS OF EVERY 600 HOURS Adjust Front Axle Pivot 1. Loosen the lock nut (2), tighten the adjusting screw (1) all the way, and then loosen the adjusting screw (1) by 1/6 turn.
Page 51: Check Points Of Every 2 Years
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [12] CHECK POINTS OF EVERY 2 YEARS Flush Cooling System and Changing Coolant (Manual Transmission Type) CAUTION • Do not remove the radiator cap when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.
Page 52 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Flush Cooling System and Changing Coolant (Manual Transmission Type) (Continued) NOTE • The above date represent industry standards that necessitate a minimum glycol content in the concentrates anti-freeze. • When the coolant level drops due to evaporation, add water only.
Page 53 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Flush Cooling System and Changing Coolant (HST Type) CAUTION • Do not remove the radiator cap when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.
Page 54 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Flush Cooling System and Changing Coolant (HST Type) (Continued) NOTE • The above date represent industry standards that necessitate a minimum glycol content in the concentrates anti-freeze. • When the coolant level drops due to evaporation, add water only.
Page 55: Others
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [13] OTHERS Bleeding Fuel System Air must removed : 1. When the fuel filter or lines are removed. 2. When tank is completely empty. 3. After the tractor has not been used for a long period of time.
Page 56 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Replacing Fuse 1. The tractor electrical system is protected from potential damage by fuses. A blown fuse indicates that there is an overload or short somewhere in the electrical system. 2. If any of the fuses should blow, replace with a new one of the same capacity.
Page 57: Special Tools
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL 8. SPECIAL TOOLS [1] SPECIAL TOOLS FOR ENGINE Special Use Puller Set Code No.: 07916-09032 Application: Use exclusively for pulling out bearing, gears and other parts with ease. W10520950 Piston Ring Compressor Code No.:...
Page 58 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Oil Pressure Tester Code No.: 07916-32032 Application: Use to measure lubricating oil pressure. (1) Gauge (5) Adaptor 2 (2) Cable (6) Adaptor 3 (3) Threaded Joint (7) Adaptor 4 (4) Adaptor 1...
Page 59 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Plastigage Code No.: 07909-30241 Application: Use to check the oil clearance between crankshaft and bearing, etc.. Measuring: Green ..0.025 to 0.076 mm (0.001 to 0.003 in.) range Red..0.051 to 0.152 mm (0.002 to 0.006 in.) Blue ..
Page 60 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Socket Wrench 46 Code No.: 07916-30901 Application: Use exclusively for removing or installing the crankshaft nut. W10621950 Auxiliary Socket For Fixing Crankshaft Sleeve Code No.: 07916-32091 Application: Use to fix the crankshaft sleeve of the diesel engine.
Page 61 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Injection Pump Pressure Tester Application: Use to check fuel tightness of injection pumps. Pressure gauge full scale : More than 29.4 MPa (300 kgf/cm , 4267 psi) Copper gasket Flange (Material : Steel) Hex.
Page 62 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Bushing Replacing Tools Application: Use to press out and to press fit the bushing. (1) For small end bushing 162 mm (6.38 in.) 35 mm (1.38 in.) 27 mm (1.06 in.) 35 mm dia. (1.38 in. dia.) 27.90 to 27.95 mm dia.
Page 63: Special Tools For Tractor
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Crankshaft Bearing 1 Replacing Tool Application: Use to press out and press fit the crankshaft bearing 1. 1. Extracting tool 135 mm (5.31 in.) 72 mm (2.83 in.) R40 mm (R1.57 in.) 10 mm (0.39 in.)
Page 64 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Injector CH3 Code No.: 07916-52501 Application: Use for injecting calcium chloride solution into, and removing it from, rear and 4WD type front wheel tires. W10265850 Clutch Center Tool (For B and L Series Tractors) Application: The clutch center tool can be used for all B and L series tractors with a diaphragm clutch by changing tip guides.
Page 65 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Flow Meter Code No.: 07916-52791 (Flow Meter) 07916-52651 (Hydraulic Test Hose) Application: This allows easy testing of hydraulic system. (1) Flow Meter (2) Hydraulic Test Hose W10313180 Adaptor Set for Flow Meter Code No.:...
Page 66 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Hydrostatic Transmission Tester and HST Adaptor Set Code No.: 07916-52040 (Hydrostatic Transmission Tester) 07916-53072 (HST Adaptor Set) Application: This allows easy measurement hydrostatic transmission pressure. (1) Hydrostatic Transmission Tester (8) Valve Seat Driver (07916-60841)
Page 67 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Check and High Pressure Relief Valve Assembly Tool Application : Use for Readjusting relief valve pressure. 1.05 rad (10 °) 30 mm (1.181 in.) Chamfer 0.4 mm (0.157 in.) 21 mm (0.827 in.) Chamfer 3 mm (0.118 in.)
Page 68 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Pump Adaptor Application : Use for checking the main hydraulic pump. NOTE • When using, attach with following parts. O-ring : 04811-00180 • This adaptor is modified from Adaptor 61 of flowmeter adaptor set. (See page G-37.) 22 mm (0.872 in.)
Page 69 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Pinion Locking Tool Code No.: 07916-52311 Application: Use for preventing the shaft from turning when removing or tighten a bevel pinion shaft staking nut. W10445520 Rear Axle Nut Wrench 71 Code No.: 07916-52531 Application: Use for removing and installing a rear axle nut.
Page 70 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL NOTE • The following special tools are not provided, so make them referring to the figure. Pinion Shaft Remover Application: Use for removing a pinion shaft. 106 mm (4.17 in.) 350 mm (13.78 in.) 6 mm (0.24 in.)
Page 71 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Draft Control Test Bar Application: Use for checking the lift range and floating range of hydraulic draft control. 1045 mm (41.14 in.) 1000 mm (29.37 in.) 20 mm dia.(0.79 in. dia.) 30 mm dia.(1.18 in. dia.) 90 mm (3.54 in.)
Page 72: Tires
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL 9. TIRES [1] TIRE PRESSURE Though the tire pressure is factory-set to the prescribed level, it naturally drops slowly in the course of time. Thus, check it everyday and inflate as necessary. To inflate the wheel tires, use an air compressor or hand pump.
Page 73: Treads Adjustment
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [2] TREADS ADJUSTMENT CAUTION • When working on slopes or working with trailer, set the wheel tread as wide as practice for the job for maximum stability. • Support tractor securely on stands before removing a wheel.
Page 74: Rear Wheels
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL (2) Rear Wheels Rear tread can be adjusted in 6 steps depending on the model. To change the tread 1. Lift the rear tires off the ground. 2. Follow the illustrations below to get the desired tread width.
Page 75: Tire Liquid Injection
Tractor Manuals Scotland L2800, L3400, WSM G GENERAL [3] TIRE LIQUID INJECTION Auxiliary weights can be used to increase traction force for plowing in fields or clayey ground. Another way is to inject water or another liquid, such as a calcium chloride solution in the tires. Water must not be used in winter since it freezes at 0 °C (32 °F).
Page 76 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Attaching Injector 1. Lift the rear tires off the ground. 2. Turn the tire so that the air valve is at the top. 3. Remove the air valve, and attach the injector. (Code No. 07916-...
Page 77 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Injection CAUTION • When a calcium chloride solution is used, cool it before pouring it into the tire. • Do not fill tires with water or solution more than 75 % of full capacity (to the valve stem level).
Page 78 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Draining Water or Solution 1. Lift the rear tires off the ground. 2. Turn the tire so that the air valve is at the bottom. 3. Remove the air valve, and drain liquid (liquid can only be drained to the level of the valve and liquid under that level remains inside).
Page 79: Implement Limitations
KUBOTA. Use with implements which exceed the maximum specifications listed below, or which are otherwise unfit for use with the KUBOTA Tractor may result in malfunctions or failures of the tractor, damage to other property and injury to the operator or others. [Any malfunctions or failures of the tractor resulting from use with improper implements are not covered by the warranty.]...
Page 80 Tractor Manuals Scotland L2800, L3400, WSM G GENERAL Implement Remarks L2800 L3400 Max. Load Capacity 1000 kg (2200 lbs) Trailer Max. Drawbar Load 330 kg (730 lbs) Max. Cutting Width 1829 mm (72 in.) Rotary-cutter Max. Weight 350 kg (770 lbs) Max.
Page 81 Tractor Manuals Scotland ENGINE Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 82 Tractor Manuals Scotland MECHANISM CONTENTS 1. FEATURES ....................1-M1 2. FUEL SYSTEM ..................... 1-M2 3. LUBRICATING SYSTEM ................1-M3 4. COOLING SYSTEM ..................1-M4 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 83: Features
L2800, L3400, WSM ENGINE 1. FEATURES The D1503-MA-E, D1703-MA-E are vertical, water-cooled, 4 cycle diesel engines. This is incorporated KUBOTA's foremost technologies. With KUBOTA's E-TVCS (Three Vortex Combustion System), well-known Bosch type injection pump and the well-balanced designs, they give greater power, low fuel consumption, little vibration and quiet operation.
Page 84: Fuel System
Tractor Manuals Scotland L2800, L3400, WSM ENGINE 2. FUEL SYSTEM (1) Fuel Overflow Pipe (4) Fuel Tank (7) Fuel Filter a : Injected Fuel Flow (2) Injection Nozzle (5) Injection Pump Air Vent Pipe (8) Fuel Feed Pump b : Returned Fuel Flow...
Page 85: Lubricating System
Tractor Manuals Scotland L2800, L3400, WSM ENGINE 3. LUBRICATING SYSTEM (1) Rocker Arm (2) Oil Pressure Switch (3) Rocker Arm Shaft (4) Valve (5) Governor Shaft (6) Idle Gear (7) Crankshaft (8) Oil Pump (9) Oil Strainer (10) Relief Valve...
Page 86: Cooling System
Tractor Manuals Scotland L2800, L3400, WSM ENGINE 4. COOLING SYSTEM (1) Thermostat (2) Cylinder Head Water Jacket (3) Cylinder Block Water Jacket (4) Radiator (5) Cooling Fan (6) Water Pump W1013306 The cooling system consists of a radiator (4), a centrifugal water pump (6), a cooling fan (5) and a thermostat (1).
Page 87 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ..................1-S1 2. SERVICING SPECIFICATIONS ..............1-S4 3. TIGHTENING TORQUES ................1-S10 4. CHECKING, DISASSEMBLING AND SERVICING........1-S11 [1] CHECKING AND ADJUSTING .............1-S11 (1) Compression Pressure ..............1-S11 (2) Valve Clearance................1-S12 (3) Top Clearance ..................1-S13 (4) Engine Oil Pressure ................1-S14 (5) Fan Belt.....................1-S14 (6) Radiator ....................1-S15 (7) Injection Pump ..................1-S17...
Page 88: Troubleshooting
Tractor Manuals Scotland L2800, L3400, WSM ENGINE 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Engine Does Not No fuel Replenish fuel – Start Air in the fuel system Bleed G-38 Water in the fuel system Change fuel and –...
Page 89 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Reference Symptom Probable Cause Solution Page Either White or Blue Excessive engine oil Reduce to specified G-14 Exhaust Gas Is level Observed Piston ring and cylinder worn or stuck Repair or replace 1-S35, S36,...
Page 90 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Reference Symptom Probable Cause Solution Page Fuel Mixed into Injection pump’s plunger worn Repair or replace 1-S29 Lubricant Oil Deficient nozzle injection Repair or replace 1-S18, S40 nozzle Injection pump broken Replace 1-S29...
Page 91: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM ENGINE 2. SERVICING SPECIFICATIONS ENGINE BODY Item Factory Specification Allowable Limit Cylinder Head Surface Flatness – 0.05 mm / 500 mm 0.0020 in. / 19.69 in. Compression Pressure 3.53 to 4.02 MPa / 2.55 MPa /...
Page 92 Tractor Manuals Scotland L2800, L3400, WSM ENGINE ENGINE BODY (Continued) Item Factory Specification Allowable Limit Valve Timing (Intake Valve) – [D1403-M] Open 0.14 rad (8 °) before T.D.C. – Close 0.35 rad (20 °) after B.D.C. [D1703-M] Open 0.21 rad (12 °) before T.D.C.
Page 93 Tractor Manuals Scotland L2800, L3400, WSM ENGINE ENGINE BODY (Continued) Item Factory Specification Allowable Limit Timing Gear Crank Gear to Idle Gear Backlash 0.0415 to 0.1122 mm 0.15 mm 0.00163 to 0.00442 in. 0.0059 in. Idle Gear to Cam Gear Backlash 0.0415 to 0.1154 mm...
Page 94 Tractor Manuals Scotland L2800, L3400, WSM ENGINE ENGINE BODY (Continued) Item Factory Specification Allowable Limit Second Ring Ring Gap 0.30 to 0.45 mm 1.25 mm 0.0118 to 0.0177 in. 0.0492 in. Oil Ring Ring Gap 0.25 to 0.45 mm 1.25 mm 0.0098 to 0.0177 in.
Page 95 Tractor Manuals Scotland L2800, L3400, WSM ENGINE ENGINE BODY (Continued) Item Factory Specification Allowable Limit Cylinder Bore [Standard] [D1403-M] I.D. 80.000 to 80.019 mm + 0.15 mm 3.14967 to 3.15042 in. + 0.0059 in. [D1703-M] I.D. 87.000 to 87.022 mm + 0.15 mm...
Page 96 Tractor Manuals Scotland L2800, L3400, WSM ENGINE COOLING SYSTEM Item Factory Specification Allowable Limit Fan Belt Tension 7.0 to 9.0 mm (0.28 to – 0.35 in.) deflection at 98 N (10 kgf, 22 lbs) of force Thermostat Valve Opening 69.5 to 72.5 °C –...
Page 97: Tightening Torques
Tractor Manuals Scotland L2800, L3400, WSM ENGINE 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item Size x Pitch N·m kgf·m...
Page 98: Checking, Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM ENGINE 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING (1) Compression Pressure Compression Pressure 1. Run the engine until it is warmed up. 2. Stop the engine and disconnect the 2P connector from the stop solenoid in order to inject fuel.
Page 99: Valve Clearance
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (2) Valve Clearance Valve Clearance IMPORTANT • Valve clearance must be checked and adjusted when engine is cold. 1. Remove the head cover, the glow plugs and the timing window cover on the clutch housing.
Page 100: Top Clearance
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (3) Top Clearance Top Clearance 1. Remove the cylinder head. 2. Move the piston and stick a strip of fuse on the piston head at three positions with grease. 3. Lower the piston and install the cylinder head. (Use a new cylinder head gasket and tighten with a specified tightening torque.)
Page 101: Engine Oil Pressure
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (4) Engine Oil Pressure Engine Oil Pressure 1. Remove the engine oil pressure switch, and set an oil pressure tester (Code No. 07916-32032). (Adaptor screw size : PT 1/8). 2. Start the engine. After warming up, measure the oil pressure of both idling and rated speeds.
Page 102: Radiator
Tractor Manuals Scotland L2800, L3400, WSM ENGINE Fan Belt Damage and Wear 1. Check the fan belt for damage. 2. If the fan belt is damaged, replace it. 3. Check if the fan belt is worn and sunk in the pulley groove.
Page 103 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Radiator Cap Air Leakage CAUTION • When removing the radiator cap, wait at least ten minutes after the engine has stopped and cooled down. Otherwise, hot water may gush out, scalding nearby people.
Page 104: Injection Pump
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (7) Injection Pump Injection Timing 1. Remove the stop solenoid. 2. Remove the injection pipes and nozzle. 3. Set the speed control lever to maximum fuel discharge position. (Reference) • Turn the flywheel with screwdriver.
Page 105: Injection Nozzle
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (8) Injection Nozzle CAUTION • Check the nozzle injection pressure and condition after confirming that there is nobody standing in the direction the fume goes. If the fume from the nozzle directly contacts the human body, cells may be destroyed and blood poisoning may be caused.
Page 106: Preparation
Tractor Manuals Scotland L2800, L3400, WSM ENGINE [2] PREPARATION (1) Separating Engine and Clutch Housing Draining Engine Oil 1. Start and warm up the engine for approx. 5 minutes. 2. Place an oil pan underneath the engine. 3. Remove the drain plugs (1) to drain oil.
Page 107 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Draining the Transmission Fluid 1. Place an oil pan underneath the transmission case. 2. Remove the drain plugs (1) at the bottom of the transmission case. 3. Drain the transmission fluid. 4. Screw in the drain plugs (1).
Page 108 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Steering Wheel and Rear Bonnet 1. Remove the steering wheel (1) with steering puller. 2. Remove the throttle grip (2). 3. Disconnect the hour-meter cable from the engine. 4. Remove the meter panel (3).
Page 109 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Wirings 1. Disconnect the wiring (1) for the fuel sensor. 2. Disconnect the key stop solenoid connector (3). 3. Disconnect the wiring (2) for the glow plug. 4. Disconnect the 1P connector (4) for the water temperature sensor.
Page 110 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Separating Engine from Clutch Housing Case 1. Check the engine and clutch housing case are securely mounted on the disassembling stands. 2. Remove the engine mounting screws, and separate the engine from the clutch housing case.
Page 111: Separating Engine From Front Axle Frame
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (2) Separating Engine from Front Axle Frame Fuel Tank 1. Disconnect the fuel pipe (4) and drain the fuel. 2. Disconnect the return fuel pipe (2), (3). 3. Remove the fuel tank mounting screws.
Page 112: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM ENGINE [3] DISASSEMBLING AND ASSEMBLING (1) Cylinder Head and Valves External Components 1. Set the engine to the disassembling stand. 2. Remove the cooling fan (1). 3. Remove the alternator (3) and fan belt (2).
Page 113 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Nozzle Holder Assembly and Glow Plug 1. Remove the overflow pipe assembly (5). 2. Remove the nozzle holder assemblies (2) using a 21 mm deep socket wrench. 3. Remove the copper gasket and heat seal (3).
Page 114 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Rocker Arm and Push Rod 1. Remove the rocker arm bracket nuts. 2. Detach the rocker arm assembly (1). 3. Remove the push rods (2). (When reassembling) • When putting the push rods (2) onto the tappets (3), check to see if their ends are properly engaged with the grooves.
Page 115: Timing Gears, Camshaft And Fuel Camshaft
Tractor Manuals Scotland L2800, L3400, WSM ENGINE Tappets 1. Remove the tappets (1) from the crankcase. (When reassembling) • Visually check the contact between tappets and cams for proper rotation. If defect is found, replace tappets. • Before installing the tappets, apply engine oil thinly around them.
Page 116 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Injection Pump 1. Remove the stop solenoid (4) and hi-idling body (1). 2. Remove the engine stop lever (3) and stop solenoid guide (6). 3. Remove the fuel hose (7), pump cover (5) and fuel injection pump assembly (2).
Page 117 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Governor Springs and Speed Control Plate NOTE • Specific tool (1) : 1.2 mm diameter hard wire with its end hooked, overall length 200 mm (7.87 in.). The tip of wire is bent like the hook to hang governor springs.
Page 118 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Fan Drive Pulley 1. Lock the flywheel not to turn using the flywheel stopper. 2. Remove the fan drive pulley mounting nut (1). 3. Remove the fan drive pulley (2) with gear puller (3).
Page 119 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Idle Gear 1. Remove the external snap ring. 2. Detach the idle gear collar. 3. Detach the idle gear (2). (When reassembling) • Check to see each gear is aligned with its aligning mark.
Page 120 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Fuel Camshaft and Fork Lever Assembly 1. Remove the fuel feed pump (8) and hydraulic pump drive gear (9). 2. Detach the fuel camshaft stopper (1). 3. Remove the three fork lever holder mounting screws (2).
Page 121: Connecting Rod And Piston
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (3) Connecting Rod and Piston Oil Pan and Oil Strainer 1. Remove the oil pan mounting screws. 2. Remove the oil pan (1) by lightly tapping the rim of the pan with a wooden hammer.
Page 122 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Pistons 1. Completely clean carbon (1) in the cylinders. 2. Remove the connecting rod cap (3). 3. Turn the flywheel and bring the piston to top dead center. 4. Draw out the piston upward by lightly tapping it from the bottom of the crankcase with the grip of a hammer.
Page 123 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Piston Ring and Connecting Rod 1. Remove the piston rings using a piston ring tool (Code No. 07909-32121). 2. Remove the piston pin (1), and separate the connecting rod (7) from the piston (2).
Page 124: Crankshaft
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (4) Crankshaft Flywheel 1. Fit the stopper to the flywheel (1). 2. Remove the all flywheel screws (2). 3. Remove the flywheel (1) slowly. (When reassembling) • Insert two pieces of the flywheel guide screws.
Page 125 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Crankshaft NOTE • Before disassembling, check the side clearance of crankshaft. Also check it during reassembling. 1. Remove the main bearing case screw 2 (1). 2. Pull out the crankshaft assembly, taking care not to damage the crankshaft bearing 1.
Page 126 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Main Bearing Case Assembly 1. Remove the two main bearing case screws 1, and remove the main bearing case assembly being careful with thrust bearing and crankshaft bearing. 2. Remove the main bearing case 1, 2 as above.
Page 127: Thermostat
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (5) Thermostat Thermostat Assembly 1. Remove the thermostat cover mounting screws, and remove the thermostat cover (1). 2. Remove the thermostat assembly (3). (When reassembling) • Apply a liquid gasket (Three Bond 1215 or equivalent) only at the thermostat cover side of the thermostat cover gasket (2).
Page 128: Servicing
Tractor Manuals Scotland L2800, L3400, WSM ENGINE [4] SERVICING (1) Cylinder Head and Valves Cylinder Head Surface Flatness 1. Clean the cylinder head surface. 2. Place a straightedge on the cylinder head’s four sides and two diagonal as shown in the figure.
Page 129 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Valve Recessing 1. Clean the cylinder head surface (1), valve face and valve seat. 2. Insert the valve into the valve guide. 3. Measure the valve recessing with a depth gauge. 4. If the measurement exceeds the allowable limit, replace the valve.
Page 130 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Clearance between Valve Stem and Valve Guide 1. Remove carbon from the valve guide section. 2. Measure the valve stem O.D. with an outside micrometer. 3. Measure the valve guide I.D. with a small hole gauge, and calculate the clearance.
Page 131 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Valve Seating 1. Coat the valve face lightly with prussian blue and put the valve on its seat to check the contact. 2. If the valve does not seat all the way around the valve seat or the valve contact is less than 70 %, correct the valve seating as follows.
Page 132 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Valve Lapping 1. Apply compound evenly to the valve lapping surface. 2. Insert the valve into the valve guide. Lap the valve onto its seat with a valve flapper or screwdriver. 3. After lapping the valve, wash the compound away and apply oil, then repeat valve lapping with oil.
Page 133 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Oil Clearance between Rocker Arm and Rocker Arm Shaft 1. Measure the rocker arm shaft O.D. with an outside micrometer. 2. Measure the rocker arm I.D. with an inside micrometer, and then calculate the oil clearance.
Page 134: Timing Gears, Camshaft And Fuel Camshaft
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (2) Timing Gears, Camshaft and Fuel Camshaft Timing Gear Backlash 1. Set a dial indicator (lever type) with its tip on the gear tooth. 2. Move the gear to measure the backlash, holding its mating gear.
Page 135 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Camshaft Alignment 1. Support the camshaft with V blocks on the surface plate at both end journals. 2. Set a dial indicator with its tip on the intermediate journal. 3. Measure the camshaft alignment.
Page 136: Piston And Connecting Rod
Tractor Manuals Scotland L2800, L3400, WSM ENGINE Oil Clearance between Idle Gear Shaft and Idle Gear Bushing 1. Measure the idle gear shaft O.D. with an outside micrometer. 2. Measure the idle gear bushing I.D. with an inside micrometer, and calculate the oil clearance.
Page 137 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Oil Clearance between Piston Pin and Small End Bushing 1. Measure the piston pin O.D. where it contacts the bushing with an outside micrometer. 2. Measure the small end bushing I.D. with an inside micrometer, and calculate the oil clearance.
Page 138 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Piston Ring Gap 1. Insert the piston ring into the lower part of the liner (the least worn out part) with the piston. 2. Measure the ring gap with a feeler gauge. 3. If the gap exceeds the allowable limit, replace the ring.
Page 139 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Connecting Rod Alignment NOTE • Since the I.D. of the connecting rod small end bushing is the basis of this check, check bushing for wear beforehand. 1. Install the piston pin into the connecting rod.
Page 140: Crankshaft
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (4) Crankshaft Side Clearance of Crankshaft 1. Set a dial indicator with its tip on the end of the crankshaft. 2. Measure the side clearance by moving the crankshaft to the front and rear.
Page 141 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Oil Clearance between Crankpin and Crankpin Bearing 1. Clean the crankpin and crankpin bearing. 2. Put a strip of plastigage on the center of the crankpin. 3. Install the connecting rod cap and tighten the connecting rod screws to the specified torque, and remove the cap again.
Page 142 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Oil Clearance between Crankshaft Journal and Crankshaft Bearing 1 1. Measure the O.D. of the crankshaft journal with an outside micrometer. 2. Measure the I.D. of the crankshaft bearing 1 with an inside micrometer, and calculate oil clearance.
Page 143 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Replacing Crankshaft Bearing 1 (When removing) 1. Press out the used crankshaft bearing 1 (2) using a crankshaft bearing 1 replacing tool. (When installing) 1. Clean a new crankshaft bearing 1 (2) and crankshaft journal bore, and apply engine oil to them.
Page 144 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Oil Clearance between Crankshaft Journal and Crankshaft Bearing 2 1. Put a strip of plastigage on the center of the journal. 2. Install the bearing case and tighten the baring case screws 1 to the specified torque, and remove the bearing case again.
Page 145 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Crankshaft Sleeve Wear 1. Check the wear on the crankshaft sleeve (1). 2. If the wear exceeds the allowable limit or when the engine oil leaks, replace the crankshaft sleeve (1). 0.1 mm...
Page 146: Cylinder
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (5) Cylinder Cylinder Wear 1. Measure the I.D. of the cylinder at the six positions (see figure) with a cylinder gauge to find the maximum and minimum I.D.’s. 2. Get the difference (Maximum wear) between the maximum and the minimum I.D.’s.
Page 147 Tractor Manuals Scotland L2800, L3400, WSM ENGINE Correcting Cylinder (Oversize) 1. When the cylinder is worn beyond the allowable limit, bore and hone it to the specified dimension. 80.250 to 80.272 mm D1403-M 3.15951 to 3.16038 in. Factory Oversize cylinder I.D.
Page 148: Oil Pump
Tractor Manuals Scotland L2800, L3400, WSM ENGINE (6) Oil Pump Rotor Lobe Clearance 1. Measure the clearance between lobes of the inner rotor and the outer rotor with a feeler gauge. 2. Measure the clearance between the outer rotor and the pump body with a feeler gauge.
Page 149 Tractor Manuals Scotland CLUTCH Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 150 Tractor Manuals Scotland MECHANISM CONTENTS 1. STRUCTURE ....................2-M1 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 151 L2800 tractor is equipped with the dry single plate type clutch. L3400 tractor is equipped with the dual stage type clutch.
Page 152 (2) Separating Clutch Assembly.............2-S10 [3] DISASSEMBLING AND ASSEMBLING..........2-S12 (1) Dual Stage Clutch (L3400)..............2-S12 [4] SERVICING ....................2-S13 (1) Single Plate Clutch (L2800) ..............2-S13 (2) Dual Stage Clutch (L3400)..............2-S14 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 153: Troubleshooting
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Clutch Drags Clutch pedal free play excessive Adjust 2-S6 Clutch disc boss spline sticking or rusted Replace or remove 2-S11 rust Dust on clutch disc generated from clutch disc Remove rust –...
Page 154 Tractor Manuals Scotland L2800, L3400, WSM CLUTCH Reference Symptom Probable Cause Solution Page Vibration Main shaft bent Replace 3-S16, S17 Clutch disc rivet worn or broken Replace 2-S10, S11 Clutch parts broken Replace 2-S10, S11 W1015002 Tractor Manuals Scotland - Please Do Not Copy...
Page 155: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH 2. SERVICING SPECIFICATIONS [L2800] Item Factory Specification Allowable Limit Clutch Pedal Free Travel 20 to 30 mm – 0.8 to 1.2 in. Pressure Plate to Adjusting Bolt Clearance 1.4 to 1.5 mm –...
Page 156 Tractor Manuals Scotland L2800, L3400, WSM CLUTCH [L3400] Item Factory Specification Allowable Limit Clutch Pedal Free Travel 20 to 30 mm – 0.8 to 1.2 in. Pressure Plate to Adjusting Bolt Clearance 0.95 to 1.00 mm – 0.037 to 0.039 in.
Page 157: Tightening Torques
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item N·m kgf·m ft-lbs Lock nut (L3400) 15.7 to 21.6...
Page 158: Checking, Disassembling And Servicing
L2800, L3400, WSM CLUTCH 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING Adjusting Clutch Pedal Free Travel (L2800) 1. Stop the engine and remove the key. 2. Slightly depress the clutch pedal and measure free travel at top of pedal stroke.
Page 159: Preparation
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH [2] PREPARATION (1) Separating Engine and Clutch Housing Draining the Transmission Fluid 1. Place an oil pan underneath the transmission case. 2. Remove the drain plugs (1) at the bottom of the transmission case.
Page 160 Tractor Manuals Scotland L2800, L3400, WSM CLUTCH Steering Wheel and Rear Bonnet 1. Remove the steering wheel (1) with steering puller. 2. Remove the throttle grip (2). 3. Disconnect the hour-meter cable from the engine. 4. Remove the meter panel (3).
Page 161 Tractor Manuals Scotland L2800, L3400, WSM CLUTCH Wirings 1. Disconnect the wiring (1) for the fuel sensor. 2. Disconnect the key stop solenoid connector (3). 3. Disconnect the wiring (2) for the glow plug. 4. Disconnect the 1P connector (4) for the water temperature sensor.
Page 162: Separating Clutch Assembly
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH Separating Engine from Clutch Housing Case 1. Check the engine and clutch housing case are securely mounted on the disassembling stands. 2. Remove the engine mounting screws, and separate the engine from the clutch housing case.
Page 163 (7) Step (4) Release Hub W1013553 Release Hub and Clutch Lever (L2800) 1. Remove the release fork (1) mounting screw (2). 2. Draw out the clutch lever (3) to remove the release fork (1). 3. Remove the hub return spring (6).
Page 164: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH [3] DISASSEMBLING AND ASSEMBLING (1) Dual Stage Clutch (L3400) Mounting to Main Clutch Assembling Tool 1. Put parting marks on the clutch cover and pressure plate. 2. Mount the clutch on dual stage clutch exclusive tool (Code No.
Page 165: Servicing
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH [4] SERVICING (1) Single Plate Clutch (L2800) Backlash between Clutch Disc Boss and Shaft 1. Mount the clutch disc to the main shaft. 2. Hold the main shaft so that it does not turn.
Page 166: Dual Stage Clutch (L3400)
Tractor Manuals Scotland L2800, L3400, WSM CLUTCH Checking Pressure Plate Assembly and Flywheel 1. Wash the disassembling parts except clutch disc with a suitable cleaning solvent to remove dirt and grease before making inspection and adjustment. 2. Check friction surface of pressure plate and flywheel for scoring or roughness.
Page 167 Tractor Manuals Scotland L2800, L3400, WSM CLUTCH Pressure Plate Flatness 1. Place a straightedge on the pressure plate and measure clearance with a feeler gauge at several points. 2. If the clearance exceeds the allowable limit, replace it. 3. When the pressure plate is worn around its outside and its inside surface only is in contact with the straightedge, replace even if the clearance is within the allowable limit.
Page 168 Tractor Manuals Scotland L2800, L3400, WSM CLUTCH Release Lever Height 1. Mount the dual stage clutch exclusive tool (Code No. 07916- 90052). 2. Measure the clearance between gauge ring and the top of adjusting screw with a feeler gauge. 3. If the clearance is not within the factory specifications, adjust with the adjusting screws.
Page 169 Tractor Manuals Scotland TRANSMISSION (MANUAL TYPE) Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 170 Tractor Manuals Scotland MECHANISM CONTENTS 1. STRUCTURE ....................3-M1 [1] L2800 ....................... 3-M1 [2] L3400 ....................... 3-M2 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 171 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) 1. STRUCTURE [1] L2800 3TLAAAB3P066A (1) Main Gear Shift Section (2) Lo-Reverse, Hi-Shift Section (3) PTO Gear Section (4) One-Way Clutch Section (5) 4WD Section (Drive Gear) Tractor Manuals Scotland - Please Do Not Copy...
Page 172 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) [2] L3400 3TLAAAB3P067A (1) Main Gear Shift Section (2) Lo-Reverse, Hi-Shift Section (3) PTO Gear Section (4) 4WD Section (Drive Gear) Tractor Manuals Scotland - Please Do Not Copy 3-M2 KiSC issued 08, 2007 A...
Page 173 (3) Separating Transmission Case............3-S10 [2] DISASSEMBLING AND ASSEMBLING..........3-S14 (1) Clutch Housing Case ................3-S14 (2) Transmission Case ................3-S20 (3) Disassembling Differential Gear Assembly (L2800) ......3-S24 (4) Disassembling Differential Gear Assembly (L3400) ......3-S26 [3] SERVICING ....................3-S29 (1) Clutch Housing..................3-S29 (2) Transmission Case ................3-S30...
Page 174: Troubleshooting
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Excessive Transmission fluid insufficient Replenish 3-S6 Transmission Noise Gear worn or backlash improper Replace 3-S30 Bearing worn or broken Replace 3-S30 Shift fork worn...
Page 175 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Reference Symptom Probable Cause Solution Page Excessive or Improper backlash between spiral bevel pinion Adjust 3-S32 Unusual at All Time and spiral bevel gear Improper backlash between differential pinion Adjust 3-S35...
Page 176: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) 2. SERVICING SPECIFICATIONS [L2800] Item Factory Specification Allowable Limit Gear Backlash 0.1 to 0.3 mm 0.4 mm 0.004 to 0.012 in. 0.016 in. Gear to Spline Clearance 0.030 to 0.078 mm 0.2 mm...
Page 177 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) [L3400] Item Factory Specification Allowable Limit Gear Backlash 0.1 to 0.3 mm 0.4 mm 0.004 to 0.012 in. 0.016 in. Gear to Spline Clearance 0.030 to 0.078 mm 0.2 mm 0.0012 to 0.0031 in.
Page 178: Tightening Torques
109 to 145 Differential case cover mounting screw 48.1 to 55.8 4.9 to 5.7 35.4 to 41.2 Spiral bevel gear UBS screw (L2800) 68.6 to 88.3 7.0 to 9.0 50.6 to 65.1 Spiral bevel gear UBS screw (L3400) 70.6 to 90.2 7.2 to 9.2...
Page 179: Checking, Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) 4. CHECKING, DISASSEMBLING AND SERVICING [1] PREPARATION (1) Separating Engine and Clutch Housing Draining the Transmission Fluid 1. Place an oil pan underneath the transmission case. 2. Remove the drain plugs (1) at the bottom of the transmission case.
Page 180 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Steering Wheel and Rear Bonnet 1. Remove the steering wheel (1) with steering puller. 2. Remove the throttle grip (2). 3. Disconnect the hour-meter cable from the engine. 4. Remove the meter panel (3).
Page 181 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Wirings 1. Disconnect the wiring (1) for the fuel sensor. 2. Disconnect the key stop solenoid connector (3). 3. Disconnect the wiring (2) for the glow plug. 4. Disconnect the 1P connector (4) for the water temperature sensor.
Page 182: Separating Clutch Housing Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Separating Engine from Clutch Housing Case 1. Check the engine and clutch housing case are securely mounted on the disassembling stands. 2. Remove the engine mounting screws, and separate the engine from the clutch housing case.
Page 183: Separating Transmission Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Separating Clutch Housing from Transmission Case 1. Remove the clutch housing mounting screws. 2. Disconnect the PTO safety switch connectors (1). 3. Separate the clutch housing from the transmission case. (When reassembling) 77.5 to 90.2 N·m...
Page 184 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Three Point Linkage 1. Remove the top link (1). 2. Remove the lift rod (2). 3. Remove the lower link (3). (1) Top Link (3) Lower Link (2) Lift Rod W1014601 ROPS 1.
Page 185 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Fender Support and Delivery Pipe 1. Remove the fender support (1), (2), (3), (5). 2. Disconnect the delivery pipe (4). 49.0 to 69.0 N·m Tightening torque Delivery pipe joint bolt 5.0 to 7.0 kgf·m 36.1 to 50.6 ft-lbs...
Page 186 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Hydraulic Cylinder Assembly 1. Loosen and remove the hydraulic cylinder assembly mounting screws and nuts. 2. Support the hydraulic cylinder assembly with nylon lift strap and hoist, and then take out it.
Page 187: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Brake Case 1. Loosen and remove the brake case mounting screws and nuts. 2. Separate the brake case, tapping the brake case lever lightly. (When reassembling) • Apply grease to the brake ball seats.
Page 188 (3) Clutch Lever (6) Clutch Rod W1017592 Release Hub and Clutch Lever (L2800) 1. Remove the release fork (1) mounting screw (2). 2. Draw out the clutch lever (3) to remove the release fork (1). 3. Remove the hub return spring (6).
Page 189 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Main Shaft Case 1. Remove the main shaft case (1). 2. Remove the stopper plate (2). 3. Remove the bearing cover (3). (When reassembling) • Apply grease to the O-ring and install it to the clutch housing.
Page 190 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) 16T Gear Shaft 1. Draw out the 16T gear shaft (1) to the front. (When reassembling) • Apply grease to the oil seal (2) and needle bearing (3). IMPORTANT • Apply grease to the outside of oil seal (2).
Page 191 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) PTO Transmitted Shaft 1. Draw out the PTO transmitted shaft assembly (1) to the rear with sliding hammer (2). (1) PTO Transmitted Shaft (2) Sliding Hammer W1036012 Main Shaft 1. Remove the internal snap ring (6).
Page 192 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) PTO Shift Fork (L3400) 1. Remove the PTO safety switch (1), (2). 2. Remove the bolt (3) and take out the spring and ball. 3. Tap out the spring pin (4).
Page 193: Transmission Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) PTO Counter Shaft (L2800) 1. Remove the shift rod and shift fork. 2. Remove the external snap ring (1) and oneway clutch (2). 3. Tap out the PTO counter shaft (5) to the front to take off bearing cover (7).
Page 194 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Mid Case 1. Tap out the spring pin (1). 2. Remove the guide plate (2). 3. Remove the lock nut (3) and lock bolt (4). 4. Remove the pinion bearing cover (6) and shims (5).
Page 195 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Sub Shaft 1. Remove the bearing (1) and (16) with bearing puller. 2. Remove the external snap ring (2) and (15). 3. Remove the shift fork (12) and 31T gear (3).
Page 196 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Pinion Shaft 1. Remove the pinion shaft (1) and PTO drive shaft assembly (8). (1) Pinion Shaft (5) External Snap Ring (2) 19T Gear (6) External Snap Ring (3) 42T Gear...
Page 197: Disassembling Differential Gear Assembly (L2800)
(5) Slinger (3) Oil Seal (6) PTO Shaft W1021874 (3) Disassembling Differential Gear Assembly (L2800) Bearing and Differential Lock Shifter 1. Secure the differential gear in a vise. 2. Remove the ball bearing with a puller. 3. Remove the differential lock shifter.
Page 198 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Spiral Bevel Gear 1. Remove the spiral bevel gear. (When reassembling) • Check the spiral bevel gear for wear or damage. If it is no longer serviceable, replace it. Then, also replace the spiral bevel pinion.
Page 199: Disassembling Differential Gear Assembly (L3400)
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Front Drive Case (4WD Type) 1. Remove the front drive case. 2. Remove the oil seal (1). 3. Tap out the propeller shaft 1 (3) to the front. 4. Take out the shift gear (6).
Page 200 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Differential Case Cover and Differential Side Gear 1. Remove the differential case cover (3). 2. Remove the differential side gear (1) and differential side gear washer (2). (When reassembling) • Apply molybdenum disulfide (Three Bond 1901 or equivalent) to the inner circumferential surface of the differential side gear boss.
Page 201 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Differential Pinion Shaft and Differential Pinion 1. Draw out the differential pinion shaft 2 (5), and take out the differential pinion (3) and differential pinion washer (4). 2. Draw out the differential pinion shaft (1), and take out the differential pinion (2) and differential pinion washer.
Page 202: Servicing
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) [3] SERVICING (1) Clutch Housing Gear Backlash 1. Set a dial indicator (lever type) on one of the tooth faces. 2. Clamp the mating gear. 3. Measure backlash by turning the gear to be measured.
Page 203: Transmission Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) (2) Transmission Case Checking Bearing 1. Hold the inner race, and push and pull the outer race in all directions to check for wear and roughness. 2. Apply transmission fluid to the bearing, and hold the inner race.
Page 204 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Free Length of the Shift Fork Spring 1. Measure free length of spring with vernier caliper. 2. If the free length is less than the allowable limit, replace. 22 mm Factory spec.
Page 205 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Backlash and Tooth Contact between Bevel Gear and 8T Spiral Bevel Pinion 1. Set the dial indicator (lever type) with its finger on the tooth surface. 2. Measure the backlash by fixing the 8T spiral bevel pinion and moving the bevel gear by hand.
Page 206 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Proper Contact More than 35 % red lead contact area on the gear tooth surface. The center of tooth contact at 1/3 of the entire width from the small end. (A) Proper Contact...
Page 207 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Clearance between Differential Case Bore (Differential Case Cover Bore) and Differential Side Gear Boss (L3400) 1. Measure the bore I.D. of the differential case and differential case cover. 2. Measure the differential side gear boss O.D. and calculate the clearance.
Page 208 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (MANUAL TYPE) Backlash between Differential Pinion and Differential Side Gear 1. Secure the differential case in a vise. 2. Set a dial indicator (lever type) on the tooth of the differential side gear.
Page 209 Tractor Manuals Scotland TRANSMISSION (HST TYPE) Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 210 Tractor Manuals Scotland MECHANISM CONTENTS 1. STRUCTURE ....................H3-M1 2. POWER TRAIN FOR TRAVELLING ............H3-M2 [1] HYDRAULIC TRANSMISSION (HST) ..........H3-M2 (1) Structure ..................H3-M2 [2] OIL FLOW .................... H3-M4 [3] OPERATION ..................H3-M5 (1) Neutral .................... H3-M5 (2) Forward ................... H3-M6 (3) Reverse...................
Page 211 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) 1. STRUCTURE 3TLAAAB3P068A (1) Hydrostatic Transmission Section (2) Range Gear Shift Section (3) PTO Clutch Section (4) Front Wheel Drive Section Tractor Manuals Scotland - Please Do Not Copy H3-M1 KiSC issued 08, 2007 A...
Page 212: Structure
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) 2. POWER TRAIN FOR TRAVELLING The transmission of this model consists of a series of gears as shown in previous page. The traveling system is chiefly composed of hydrostatic transmission section, range gear shift section and front wheel drive section.
Page 213 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (1) Input Shaft (6) Cylinder Block (Pump) (10) Output Shaft (Motor) (14) Check and High Pressure (2) Pump Shaft (7) Case Relief Valve (11) Cylinder Block (Motor) Relief Valve (3) 27T Gear...
Page 214: Oil Flow
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) [2] OIL FLOW (1) Pump Shaft (6) Neutral Valve (12) Check and High Pressure A : To Hydraulic Block (2) Variable Displacement Pump (7) Fixed Displacement Motor Relief Valve B : To Power Steering...
Page 215: Operation
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) [3] OPERATION (1) Neutral (1) Oil Cooler (6) Neutral Valve (Forward) (11) Check and High Pressure (15) Hydraulic Control Valve (2) Oil Filter (For HST) (7) Neutral Valve (Reverse) Relief Valve (Forward)
Page 216: Forward
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (2) Forward (1) Oil Cooler (7) Neutral Valve (Reverse) (13) Transmission Case A : Pump Port A (2) Oil Filter (For HST) (8) Piston (14) OIl Filter B : Pump Port B...
Page 217: Reverse
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (3) Reverse (1) Oil Cooler (7) Neutral Valve (Reverse) (13) Transmission Case A : Pump Port A (2) Oil Filter (For HST) (8) Piston (14) OIl Filter B : Pump Port B...
Page 218: Control Linkage
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) [4] CONTROL LINKAGE (1) HST Pedal Linkage (1) HST Pedal (3) Spring (5) Neutral Rod (7) Pedal Bracket (2) Neutral Holder Arm (4) Neutral Holder (6) Damper (8) Ball Bearing The speed control pedal (HST pedal) (1) and the holder (Trunnion) are linked with the pedal bracket and HST neutral rod (5).
Page 219: Cruise Control
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (2) Cruise Control (1) Connecting Shaft (4) Cruise Lever 1 (6) Cruise Lever 2 (8) Lever Rod (2) Cruise Adjusting Rod (5) Release Lever (7) Cruise Control Lever (9) Release Spring...
Page 220: Range Gear Shift Section
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) [5] RANGE GEAR SHIFT SECTION The range gear shift section is located in the mid case. It changes the speed to five position (L, N, M, N and H) by shifting of shift gear (3) in the straight line on shaft (2).
Page 221: Power Train For Pto
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) 3. POWER TRAIN FOR PTO [1] STRUCTURE (1) Pump Shaft (HST) (3) PTO Dog Clutch (5) 15T-44T Gear (7) PTO Drive Shaft (2) PTO Counter Shaft (4) 16T Gear Shaft (6) 27T Gear (8) PTO Shaft PTO is "ENGAGED"...
Page 222: Shifting Linkage
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) [2] SHIFTING LINKAGE (1) PTO Lever (3) PTO Shift Fork (5) Lever A : Disengaged (2) PTO Shift Cable (4) 16T PTO Clutch B : Engaged The shift lever (1) through the shift fork (3) are connected by shift cable (2), as shown in the figure above.
Page 223 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ................. H3-S1 2. SERVICING SPECIFICATIONS ..............H3-S5 3. TIGHTENING TORQUES ................H3-S6 4. CHECKING, DISASSEMBLING AND SERVICING........H3-S7 [1] CHECKING AND ADJUSTING ............H3-S7 (1) Checking High Pressure Relief Valve Pressure....... H3-S7 (2) Checking Charge Relief Pressure............ H3-S8 (3) Checking Cruise Lever Operating Force..........
Page 224: Troubleshooting
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Excessive Transmission fluid insufficient Replenish H3-S12 Transmission Noise Gear worn or backlash improper Replace 3-S30 Bearing worn or broken Replace 3-S30 Shift fork worn...
Page 225 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Reference Symptom Probable Cause Solution Page Excessive or Improper backlash between spiral bevel pinion Adjust 3-S32 Unusual at All Time and spiral bevel gear Improper backlash between differential pinion Adjust 3-S35...
Page 226 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) HYDROSTATIC TRANSMISSION Reference Symptom Probable Cause Solution Page System Will Not Oil level is low Check oil level or fill G-16 Operate in Either oil to proper level Direction Speed control pedal linkage defective...
Page 227 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) HYDROSTATIC TRANSMISSION (Continued) Reference Symptom Probable Cause Solution Page Loss of Power Oil level is low Check oil level or fill G-16 oil to proper level Speed control pedal linkage defective...
Page 228: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Check and High Pressure Relief Valve Setting Pressure 33.3 to 36.3 MPa Condition 340 to 370 kgf/cm – 4836 to 5262 psi Charge Relief Valve Condition Setting Pressure 0.49 to 0.78 MPa...
Page 229 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item N·m kgf·m...
Page 230: Checking, Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING (1) Checking High Pressure Relief Valve Pressure Checking High Pressure Relief Valve Pressure CAUTION • When checking, park the machine on flat ground, apply the parking brake.
Page 231: Checking Charge Relief Pressure
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (2) Checking Charge Relief Pressure Checking Charge Relief Pressure CAUTION • When checking, park the machine on flat ground, apply the parking brake. NOTE • Use a new transmission oil filter.
Page 232: Checking Cruise Lever Operating Force
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (3) Checking Cruise Lever Operating Force Cruise Lever Operating Force 1. Push the cruise control lever (1) into maximum tied position. After that pull it 50 mm (2 in.) back. 2. Measure the force needed to move the cruise control lever back into the maximum position at the top of the lever grip (2).
Page 233: Adjusting Neutral
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (4) Adjusting Neutral Adjusting Neutral 1. Disengage the front wheel drive lever. (Drive only rear wheels.). 2. Set the cruise control to "OFF" position. (HST pedal is neutral position). 3. Check to see that the length (A) of HST neutral rod (5) is specified length.
Page 234 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Adjusting HST Pedal and Stopper Bolt NOTE • Stop the engine when adjusting the cruise control linkage and pedal stroke. • Be sure to adjust the HST neutral position (See page H3- S10.).
Page 235: Adjusting Pto Wire
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (6) Adjusting PTO Wire Adjusting PTO Wire 1. Check to see that the threaded portion of wire (3) rear side is set at center position. If not, set by lock nuts (2).
Page 236 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Bonnet and Front Cover 1. Disconnect the battery negative cable. 2. Disconnect the connector for head light. 3. Remove bonnet (1) and side cover (2). 4. Remove the front cover (3).
Page 237 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Wirings (L.H) 1. Disconnect the wiring (2) for alternator. 2. Disconnect the wiring (3) for starter motor. 3. Disconnect the 1P connector (5) for engine oil switch. 4. Remove the shutter plate (4).
Page 238 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Propeller Shaft (4WD) 1. Remove the screw (4) then tap out the spring pin (3). 2. Slide the propeller shaft cover 1 (5) to the front and the cover 2 (6) to the rear.
Page 239: Separating Clutch Housing From Mid Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Separating Engine from Clutch Housing Case 1. Check the engine and clutch housing case are securely mounted on the disassembling stands. 2. Remove the engine mounting screws, and separate the engine from the clutch housing case.
Page 240: Separating Mid Case From Transmission Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Separating Clutch Housing (HST) from MID Case 1. Place the disassembling stand under the clutch housing case. 2. Remove the clutch housing and MID case mounting screws. 3. Separate the clutch housing and MID case.
Page 241: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) [3] DISASSEMBLING AND ASSEMBLING (1) Clutch Housing and HST Clutch Lever, Release Fork and Release Bearing 1. Remove the release fork mounting screws (2). 2. Draw out the clutch lever (3) to remove the release fork (1).
Page 242 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Shaft Case, Input Shaft and Gear 1. Remove the shaft case mounting screws. 2. Screw down the two M6 screws into the shaft case (1). 3. Take out the shaft case (1).
Page 243 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Port Block 1. Remove the port block mounting hex. head screws. 2. Pull and remove the port block (1) from HST housing. (When reassembling) • Install port block (1) with valve plates (2), (3) and new gasket in place.
Page 244 Readjustment of Relief Valve (When the HST does not work due to its loose hexagon socket head screw) IMPORTANT • The KUBOTA does not recommend the readjustment of relief valve. And KUBOTA will recommend the exhaust with genuine parts. • As the HST may be damaged if the pressure is set to higher by mistake, be careful when adjusting it.
Page 245 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Motor Cylinder Block Assembly 1. Remove the motor swashplate setting hex. head screw (1). 2. Remove the motor cylinder block assembly (3) with a motor shaft (2). (When reassembling) • Apply clean hydrostatic transmission oil to cylinder block.
Page 246: Mid Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Charge Relief Valve 1. Remove the hex. head plug (1). 2. Remove the spring (2) and valve poppet (3). (When reassembling) • Take care not to damage the O-ring. • When replacing the valves, check and adjust the setting pressure.
Page 247: Transmission Case
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Gears and Shafts 1. Remove the screw (1). 2. Tap out the PTO counter shaft (2). 3. Remove the shift fork (3) and sub shaft assembly (4). 4. Remove the 13T gear shaft assembly (5).
Page 248 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) PTO Clutch and Pinion Bearing Holder 1. Tap out the spring pin (6) and remove the screw (8), spring (3) and lever (7). 2. Remove the PTO clutch cam (4) and shift fork (5).
Page 249: Servicing
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Gear and Shaft Assembly 1. Remove the spacer mounting screws. 2. Separate the spacer (1) from the transmission case. 3. Remove the 16T gear shaft assembly (2). 4. Remove the pinion shaft assembly (3) and PTO drive shaft assembly (4).
Page 250: Hst
Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) (3) HST Charge Pump 1. Check the charge pump housing and the rotor (1), (2) for scratches and wear. 2. If scratch or worn, replace the charge pump complete assembly. (1) Inner Rotor...
Page 251 Tractor Manuals Scotland L2800, L3400, WSM TRANSMISSION (HST TYPE) Cylinder Block Bore and Pistons 1. Lift the pistons gently with the retainer plate (1). 2. Check the pistons for their free movement in the cylinder block bores. 3. If the piston or the cylinder block bore is scored, replace cylinder block assembly.
Page 252 Tractor Manuals Scotland REAR AXLE Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 253 Tractor Manuals Scotland MECHANISM CONTENTS 1. STRUCTURE ....................4-M1 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 254 Tractor Manuals Scotland L2800, L3400, WSM REAR AXLE 1. STRUCTURE (1) Ball Bearing (2) Rear Axle (3) Rear Axle Case (4) Differential Gear Shaft (5) Brake Case (6) Brake Disc (7) Differential Lock Shift Fork (8) 39T Bevel Gear (9) Differential Pinion...
Page 255 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ..................4-S1 2. TIGHTENING TORQUES ................4-S2 3. DISASSEMBLING AND SERVICING............4-S3 [1] PREPARATION ..................4-S3 [2] DISASSEMBLING REAR AXLE..............4-S5 [3] SERVICING ....................4-S5 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 256: Troubleshooting
Tractor Manuals Scotland L2800, L3400, WSM REAR AXLE 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Excessive or Improper backlash between differential gear Replace 4-S5 Unusual Noise at All shaft and final gear Time Bearing worn Replace 4-S5 Insufficient or improper type of transmission fluid...
Page 257 Tractor Manuals Scotland L2800, L3400, WSM REAR AXLE 2. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item N·m kgf·m ft-lbs...
Page 258: Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM REAR AXLE 3. DISASSEMBLING AND SERVICING [1] PREPARATION Draining the Transmission Fluid 1. Place an oil pan underneath the transmission case. 2. Remove the drain plugs (1) at the bottom of the transmission case.
Page 259 Tractor Manuals Scotland L2800, L3400, WSM REAR AXLE ROPS 1. Remove the ROPS upper frame (1). 2. Remove the ROPS lower frame (2). (When reassembling) 167 to 196 N·m ROPS mounting screw 17.0 to 20.0 kgf·m 123 to 144 ft-lbs Tightening torque 118 to 137 N·m...
Page 260: Disassembling Rear Axle
Tractor Manuals Scotland L2800, L3400, WSM REAR AXLE [2] DISASSEMBLING REAR AXLE Rear Axle (1) Rear Axle (2) Oil Seal (3) Internal Snap Ring (4) Ball Bearing (5) Spacer (6) Rear Axle Case (7) Gear (8) Lock Nut (9) Ball Bearing...
Page 261 Tractor Manuals Scotland BRAKES Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 262 Tractor Manuals Scotland MECHANISM CONTENTS 1. FEATURES ....................5-M1 2. OPERATION ....................5-M2 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 263 Tractor Manuals Scotland L2800, L3400, WSM BRAKES 1. FEATURES (1) Brake Case (2) Cam Plate (3) Brake Cam (4) Camshaft Lever (5) Brake Rod (6) Brake Pedal W1012543 Independent mechanical wet disc brakes are used for the right and left traveling brakes. They are operated by the brake pedals through the mechanical linkages.
Page 264 Tractor Manuals Scotland L2800, L3400, WSM BRAKES 2. OPERATION (1) Brake Case (3) Cam Plate (5) Brake Cam Lever (7) Brake Cam (2) Brake Disc (4) Steel Ball (6) Plate (8) Brake Shaft The brakes are provided on the power transmitting shafts (brake shafts (8)) through which power is transmitted to the final reduction system.
Page 265 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ..................5-S1 2. SERVICING SPECIFICATIONS ..............5-S2 3. TIGHTENING TORQUES ................5-S3 4. CHECKING, DISASSEMBLING AND SERVICING........5-S4 [1] CHECKING AND ADJUSTING ...............5-S4 [2] PREPARATION ..................5-S5 [3] DISASSEMBLING AND ASSEMBLING..........5-S7 [4] SERVICING ....................5-S8 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 266: Troubleshooting
Tractor Manuals Scotland L2800, L3400, WSM BRAKES 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Uneven Braking Brake disc worn Replace 5-S9 Force Cam plate warped Replace 5-S9 Brake Drags Ball holes of cam plate for uneven wear Replace 5-S9...
Page 267: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM BRAKES 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Brake Pedal Free Travel 20 to 30 mm – 0.79 to 1.2 in. Right and Left Less than 5mm – (Difference) 0.20 in. Brake Pedal Shaft to Bushing Clearance 0.020 to 0.153 mm...
Page 268 Tractor Manuals Scotland L2800, L3400, WSM BRAKES 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item N·m kgf·m ft-lbs Rear wheel mounting screw and nut...
Page 269: Checking, Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM BRAKES 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING Brake Pedal Free Travel CAUTION • Stop the engine and remove the key, then chock the wheel before checking brake pedals. 1. Release the parking brake.
Page 270: Preparation
Tractor Manuals Scotland L2800, L3400, WSM BRAKES [2] PREPARATION Draining the Transmission Fluid 1. Place an oil pan underneath the transmission case. 2. Remove the drain plugs (1) at the bottom of the transmission case. 3. Drain the transmission fluid.
Page 271 Tractor Manuals Scotland L2800, L3400, WSM BRAKES ROPS 1. Remove the ROPS upper frame (1). 2. Remove the ROPS lower frame (2). (When reassembling) 167 to 196 N·m ROPS mounting screw 17.0 to 20.0 kgf·m 123 to 144 ft-lbs Tightening torque 118 to 137 N·m...
Page 272: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM BRAKES Rear Fender Support 1. Remove the position control lever guide (1). 2. Remove the rear fender support (2). 3. Remove the suction pipe (3). 4. Remove the brake rod (4). 5. Separate the brake case (6), tapping the brake cam lever (5).
Page 273: Servicing
Tractor Manuals Scotland L2800, L3400, WSM BRAKES (1) Ball Seat (2) Ball (3) Cam Plate (4) Brake Disc (5) Plate (6) Gasket (7) Brake Case (8) Brake Cam (9) O-ring (10) Brake Cam Lever (11) Drain Plug W1014574 Brake Cam 1.
Page 274 Tractor Manuals Scotland L2800, L3400, WSM BRAKES Cam Plate Flatness 1. Place the cam plate on the surface plate. 2. Use a feeler gauge of 0.3 mm (0.012 in.) thick for judgement of the cam plate flatness. Measure the flatness diagonally at more than four locations.
Page 275 Tractor Manuals Scotland FRONT AXLE Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 276 Tractor Manuals Scotland MECHANISM CONTENTS 1. STRUCTURE ....................6-M1 [1] 2WD TYPE....................6-M1 [2] 4WD TYPE....................6-M2 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 277 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE 1. STRUCTURE [1] 2WD TYPE (1) Bushing (5) Slotted Nut (9) Oil Seal (13) Knuckle Shaft (2) Knuckle Arm (6) Ball Bearing (10) Bushing (14) Dust Cover (3) Front Axle Frame (7) Spacer...
Page 278 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE [2] 4WD TYPE (1) Bevel Gear Case (7) Front Axle Bracket, Front (13) Bevel Gear (19) Pinion Shaft (2) Bevel Gear (8) Differential Pinion (14) Bevel Gear (20) Differential Assembly (3) Front Axle Case...
Page 279 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ..................6-S1 2. SERVICING SPECIFICATIONS ..............6-S2 3. TIGHTENING TORQUES ................6-S5 4. CHECKING, DISASSEMBLING AND SERVICING........6-S6 [1] CHECKING AND ADJUSTING ...............6-S6 [2] PREPARATION ..................6-S8 (1) Separating Front Axle .................6-S8 [3] DISASSEMBLING AND ASSEMBLING..........6-S11 (1) 2WD Type Front Axle................6-S11 (2) 4WD Type Front Axle................6-S12 [4] SERVICING ....................6-S17 (1) 2WD Type ..................6-S17...
Page 280: Troubleshooting
Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Front Wheels Tire pressure uneven Adjust G-55 Wander to Right or Improper toe-in adjustment (improper alignment) Adjust 6-S6 Left Clearance between front axle middle boss and...
Page 281: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE 2. SERVICING SPECIFICATIONS 2WD TYPE Item Factory Specification Allowable Limit Front Wheel Alignment Toe-in 2 to 8 mm – 0.08 to 0.32 in. Front Wheel Axial Sway Less than 5 mm –...
Page 282 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE 4WD TYPE (Continued) Item Factory Specification Allowable Limit Differential Case, Differential Case Cover Clearance 0.050 to 0.151 mm 0.35 mm to Differential Side Gear 0.00197 to 0.00594 in. 0.0138 in. Differential Case I.D.
Page 283 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE 4WD TYPE (Continued) Item Factory Specification Allowable Limit 11T Bevel Gear to 16T Bevel Gear Backlash 0.15 to 0.35 mm – 0.0059 to 0.0138 in. Shim Thickness 0.8 mm – 0.031 in.
Page 284 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) 2WD TYPE Item N·m kgf·m...
Page 285: Checking, Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING Toe-in 1. Park the tractor on the flat place. 2. Inflate the tires to the specified pressure. 3. Turn steering wheel so front wheels are in the straight ahead position.
Page 286 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Front Axle Rocking Force [2WD] 1. Jack up the front side of tractor. 2. Set a spring balance to the front axle flange. 3. Measure the front axle rocking force. 4. If the measurement is not within the factory specifications, adjust with the adjusting screw (1).
Page 287: Preparation
Front axle case oil Capacity 4.8 U.S.qts 3.9 Imp.qts IMPORTANT • Use KUBOTA SUPER UDT fluid or SAE 80, 90 gear oil. Refer to "LUBRICANTS, FUEL AND COOLANT". (See page G-7.) (1) Drain Plug (3) Filling Port Plug (2) Check Plug...
Page 288 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Propeller Shaft (4WD) 1. Remove the screw (4) then tap out the spring pin (3). 2. Slide the propeller shaft cover 1 (5) to the front and the cover 2 (6) to the rear.
Page 289 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Breather Pipe (4WD Type Only) 1. Remove the breather pipe (1). (1) Breather Pipe W1018055 Front Axle 1. Place the disassembling stand under the front axle, and hang up the front bumper by the hoist to support it.
Page 290: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE [3] DISASSEMBLING AND ASSEMBLING (1) 2WD Type Front Axle Front Wheel Hub 1. Place the disassembling stand under the transmission case. 2. Remove the tie-rod with the tie-rod end lifter. 3. Remove the front wheel.
Page 291: 4Wd Type Front Axle
Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Knuckle Shaft 1. Remove the knuckle arm (1) and draw out the knuckle shaft (4) from the front axle. (When reassembling) • Insert the thrust ball bearing (2) and oil seal (3), noting its direction.
Page 292 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Bevel Gear Case, Axle Flange and Front Gear Case 1. Remove the plug (4). 2. Remove the internal snap ring (3) and shim (2). 3. Remove the axle flange (1). 4. Tap out the bevel gear (6) and ball bearing.
Page 293 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Bevel Gear Case Gears 1. Remove the internal snap ring (1). 2. Take out the bevel gears (5), (7) with ball bearings (4), (6), collar (2) and shims (3). (When reassembling) • Install the same shims (3) before they are removed.
Page 294 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Spiral Bevel Pinion Shaft and Differential Gear Assembly 1. Take out the differential yoke shaft (11), (12) both sides. 2. Remove the oil seal (6) and internal snap ring (5). 3. Remove the plug (10), and then tap out the spiral bevel pinion shaft (3) by the brass rod and hammer.
Page 295 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Differential Gear 1. Remove the differential case cover mounting screws (9) and then take out the differential case cover (5), ball bearing (6) and spiral bevel gear (7) as a unit. 2. Remove the external snap ring (8), and then remove the ball bearing (6) and spiral bevel gear (7) as a unit with a puller.
Page 296: Servicing
Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE [4] SERVICING (1) 2WD Type Clearance between Front Axle Middle Boss and Shaft Bracket Bushing 1. Measure the front axle middle boss O.D. at several points where it contacts with the bushing.
Page 297: 4Wd Type
Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE (2) 4WD Type Clearance between Differential Case (Differential Case Cover) and Differential Side Gear 1. Measure the differential side gear boss O.D.. 2. Measure the differential case bore I.D. and calculate the clearance.
Page 298 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Backlash between Differential Pinon and Differential Side Gear 1. Set a dial gauge (lever type) on a tooth of the differential pinion. 2. Fix the differential side gear and move the differential pinion to measure the backlash.
Page 299 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Backlash between Spiral Bevel Pinion Shaft and Spiral Bevel Gear 1. Set a dial gauge (lever type) with its finger on the spline of spiral bevel pinion shaft. 2. Measure the backlash by moving the spiral bevel pinion shaft by hand lightly.
Page 300 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Backlash between 11T Bevel Gear and 42T Bevel Gear 1. Stick a strip of fuse to three spots on the 42T bevel gear (1) with grease. 2. Fix the axle flange and front gear case.
Page 301 Tractor Manuals Scotland L2800, L3400, WSM FRONT AXLE Clearance between Front Axle Case Bosses and Bracket Bushings 1. Measure the front axle case bosses O.D. with an outside micrometer. 2. Measure the bracket bushing I.D. with an inside micrometer and calculate the clearance.
Page 302 Tractor Manuals Scotland STEERING Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 303 Tractor Manuals Scotland MECHANISM CONTENTS 1. LUBRICATING SYSTEM ................7-M1 [1] LINKAGE....................7-M1 [2] STEERING GEAR BOX ................. 7-M2 (1) Structure .................... 7-M2 (2) Operation ................... 7-M3 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 304: Lubricating System
Tractor Manuals Scotland L2800, L3400, WSM STEERING 1. LUBRICATING SYSTEM [1] LINKAGE (1) Steering Gear Box (2) Joint Shaft 2 (3) Mini-Flange (4) Support (5) Joint Shaft (6) Steering Shaft (7) Bolt W1012968 The integral type power steering is used on these tractors. This steering system is composed of steering wheel, steering joint shafts, steering gear box and other components shown in the figure.
Page 305: Steering Gear Box
Tractor Manuals Scotland L2800, L3400, WSM STEERING [2] STEERING GEAR BOX (1) Structure (1) Input Shaft (3) Sleeve (5) Main Shaft (7) Gear Box (2) Torsion Bar (4) Ball Nut (6) Sector Shaft (8) Adjust Screw This integral power steering mechanism consists of the following two major components as shown above: hydraulic control valve and steering force assist hydraulic cylinder.
Page 306: Operation
Tractor Manuals Scotland L2800, L3400, WSM STEERING (2) Operation Neutral Position While the steering wheel is not moved, the torsion bar (2) is not twisted. There is no gap between the input shaft (1) and sleeve (3). This makes no pressure difference between the chambers "a"...
Page 307 Tractor Manuals Scotland L2800, L3400, WSM STEERING Manual Operation in Case of Hydraulic System Failure Let's suppose that the hydraulic system gets in trouble due to a defective pump, damaged pipe or the like and that the steering resistance is too high to use the power steering system.
Page 308 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ..................7-S1 2. SERVICING SPECIFICATIONS ..............7-S2 3. TIGHTENING TORQUES ................7-S3 4. CHECKING, DISASSEMBLING AND SERVICING........7-S4 [1] CHECKING AND ADJUSTING ...............7-S4 [2] PREPARATION ..................7-S4 (1) Separating Steering Gear Box ............7-S4 [3] DISASSEMBLING AND ASSEMBLING..........7-S6 [4] SERVICING ....................7-S8 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 309 Tractor Manuals Scotland L2800, L3400, WSM STEERING 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Excessive Steering Backlash between sector gear shaft and rack Adjust 7-S8 Wheel Play (piston) too large Steering linkage worn Replace – Sector gear shaft worn...
Page 310: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM STEERING 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Steering Wheel Play 20 to 50 mm – 0.79 to 1.97 in. Relief Valve SteeringPressure 8.3 to 9.3 MPa – Condition [2WD] 85 to 95 kgf/cm •...
Page 311 Tractor Manuals Scotland L2800, L3400, WSM STEERING 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item N·m kgf·m ft-lbs Tie-rod end nut [2WD Type] 49.0 to 68.6...
Page 312: Checking, Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM STEERING 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING Steering Wheel Play 1. Turn the front wheels straight ahead. 2. Rotate the steering wheel lightly by hand, and measure the play (A). 3. If the play (A) is not within the factory specifications, turn the adjusting screw (1) to adjust.
Page 313 Tractor Manuals Scotland L2800, L3400, WSM STEERING Bumper and Tie-rods 1. Place the disassembling stand under the transmission case. 2. Remove the bumper. 3. Remove the tie-rods with the tie-rod end lifter. In this case, take special case not to damage the tie-rod end nut (slotted nut).
Page 314: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM STEERING [3] DISASSEMBLING AND ASSEMBLING Pitman Arm 1. Turn the input shaft clockwise and counterclockwise several time to drain oil from gear box. 2. Secure the power steering gear box with a vise. 3. Remove the nut and spring washer.
Page 315 Tractor Manuals Scotland L2800, L3400, WSM STEERING Valve Assembly 1. Remove the valve mounting screws. 2. Remove the valve assembly (1) and ball nut (2). (When reassembling) • Apply oil to O-ring and oil seal. 48.0 to 55.0 N·m Tightening torque Valve mounting screw 4.9 to 5.7 kgf·m...
Page 316: Servicing
Tractor Manuals Scotland L2800, L3400, WSM STEERING Relief Valve 1. Loosen the lock nut (5) and remove the adjusting screw (4). 2. Take out the spring (2) and poppet (1). (When reassembling) • Apply grease to O-ring (3). • Be sure to adjust the relief valve pressure. (See page 8-S8.) 49.1 to78.5 N·m...
Page 317 Tractor Manuals Scotland L2800, L3400, WSM STEERING Axial Play of Ball Nut Assembly 1. Set a dial indicator with its finger on the worm shaft of the ball nut assembly. 2. Move the worm shaft axially and measure the play.
Page 318 Tractor Manuals Scotland HYDRAULIC SYSTEM Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 319 Tractor Manuals Scotland MECHANISM CONTENTS 1. HYDRAULIC CIRCUIT .................. 8-M1 2. HYDRAULIC CYLINDER ................8-M2 3. LINKAGE MECHANISM................8-M3 4. FRONT HYDRAULIC BLOCK ..............8-M5 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 320: Hydraulic Circuit
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 1. HYDRAULIC CIRCUIT (1) Oil Tank (Transmission Case) (2) Oil Strainer (3) Hydraulic Pump (4) Relief Valve (5) Position Control Valve (6) Lowering Speed Adjusting Valve (7) Hydraulic Cylinder (8) Cylinder Safety Valve...
Page 321: Hydraulic Cylinder
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 2. HYDRAULIC CYLINDER (1) Lowering Speed Adjusting (4) Hydraulic Cylinder (8) Hydraulic Rod (12) Position Control Arm Knob (5) O-ring (9) Hydraulic Arm (13) Spool Drive Lever (2) Lowering Speed Adjusting (6) Back-up Ring...
Page 322: Linkage Mechanism
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 3. LINKAGE MECHANISM (1) Position Control Lever (2) Control Arm (3) Control Valve (4) Hydraulic Arm Shaft (5) Lift Arm (6) Spool Drive Lever (7) Spool Joint (8) Feedback Lever Shaft (9) Feedback Lever...
Page 323 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Lifting 1. When the position control lever is moved to the LIFT position, the control arm (2) rotates to the arrow. Therefore, the spool drive lever (1) moves around the fulcrum P and pull the spool (3) opening the LIFT circuit.
Page 324: Front Hydraulic Block
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 4. FRONT HYDRAULIC BLOCK (1) Cap A : To Implement Control Valve C : To Position Control Valve T1 :To Transmission Case (2) Front Hydraulic Block B : From Implement Control P : From Hydraulic Pump...
Page 325 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ..................8-S1 2. SERVICING SPECIFICATIONS ..............8-S2 3. TIGHTENING TORQUES ................8-S5 4. CHECKING, DISASSEMBLING AND ASSEMBLING ........8-S6 [1] CHECKING AND ADJUSTING ...............8-S6 (1) Hydraulic Pump Test Using Flow-meter (Power Steering) ....8-S6 (2) Relief Valve (for Power Steering)............8-S8 (3) Hydraulic Pump Test Using Flow-meter (Three Point Hydraulic System) ....................8-S9 (4) Relief Valve (for Three Point Hydraulic System).......8-S11...
Page 326 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Implement Does Not Control linkage improperly adjusted Adjust 8-S12 Rise (Not Noise) Control linkage improperly assembled or Repair or replace 8-S12, S20 damaged Position control valve malfunctioning...
Page 327: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 2. SERVICING SPECIFICATIONS POWER STEERING HYDRAULIC PUMP Item Factory Specification Allowable Limit Hydraulic Pump Delivery at No Above – Condition Pressure (L2800) 16.1 L/min. • Engine speed : 4.25 U.S.gals./min. Approx. 2800 min (rpm) (L2800) 3.54 Imp.gals./min.
Page 328 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM THREE POINT SYSTEM HYDRSULIC PUMP Item Factory Specification Allowable Limit Hydraulic Pump Delivery at No Above – Condition Pressure (L2800) 26.6 L/min. • Engine speed : 7.03 U.S.gals./min. Approx. 2800 min (rpm) (L2800) 5.85 Imp.gals./min.
Page 329 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM HYDRAULIC CYLINDER Item Factory Specification Allowable Limit Cylinder Bore I.D. 75.000 to 75.050 mm 71.150 mm 2.9528 to 2.9547 in. 2.9587 in. Hydraulic Arm Shaft to Bushing Clearance (Right) 0.125 to 0.230 mm 0.50 mm...
Page 330 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item N·m kgf·m ft-lbs Relief valve plug 49.0 to 68.6...
Page 331: Checking, Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM 4. CHECKING, DISASSEMBLING AND ASSEMBLING [1] CHECKING AND ADJUSTING (1) Hydraulic Pump Test Using Flow-meter (Power Steering) Preparation 1. Remove the support (3) mounting screw. 2. Remove the screw (2). 3. Remove the joint shaft (1).
Page 332 L2800, L3400, WSM HYDRAULIC SYSTEM Hydraulic Flow Test IMPORTANT • When using a flowmeter other than KUBOTA specified flowmeter, be sure to use the instructions with that flowmeter. • Do not close the flowmeter loading valve completely, before testing, because it has no relief valve.
Page 333: Relief Valve (For Power Steering)
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Hydraulic Flow Test (Continued) [L2800] Above 16.1 L/min. Hydraulic pump delivery Factory spec. 4.25 U.S.gals/min. at no pressure 3.54 Imp.gals/min. Above 15.0 L/min. Factory spec. 3.96 U.S.gals/min. 3.30 Imp.gals/min. Hydraulic pump delivery at rated pressure 13.5 L/min.
Page 334: Hydraulic Pump Test Using Flow-Meter (Three Point Hydraulic System)
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM (3) Hydraulic Pump Test Using Flow-meter (Three Point Hydraulic System) Preparation 1. Remove the support (3) mounting screw. 2. Remove the screw (2). 3. Remove the joint shaft (1). (When reassembling) • Lift the universal joint so that there should be a clearance (A) of more than 5 mm (0.19 in.) between the universal joint and...
Page 335 L2800, L3400, WSM HYDRAULIC SYSTEM Hydraulic Flow Test IMPORTANT • When using a flowmeter other than KUBOTA specified flowmeter, be sure to use the instructions with that flowmeter. • Do not close the flowmeter loading valve completely, before testing, because it has no relief valve.
Page 336: Relief Valve (For Three Point Hydraulic System)
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM (4) Relief Valve (for Three Point Hydraulic System) Relief Valve Setting pressure 1. Remove the delivery pipe joint bolt from front hydraulic block. 2. Install the adaptor E. Then connect the cable and pressure gauge to adaptor E.
Page 337 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Position Control Feedback Rod Adjustment 1. Set the position control lever (1) to the lowest position. 2. Start the engine, and after warming-up, set the engine speed to idle. 3. Move the position control lever (1) to the uppermost position.
Page 338: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM [2] DISASSEMBLING AND ASSEMBLING (1) Hydraulic Pump (Power Steering) Hydraulic Pump Assembly 1. Remove the side cover (1). 2. Remove the steering joint shaft (5). 3. Disconnect the suction hose (3). 4. Disconnect the return hose (8).
Page 339: Hydraulic Pump (Three Point Hydraulic System)
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Hydraulic Pump Running-in After reassembly, perform break-in operation in the following manner, and check the pump for abnormality before use. If the pump temperature should rise noticeably during running-in, recheck shoul be performed.
Page 340: Hydraulic Cylinder
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Hydraulic Pump Assembly 1. Remove the pump cover mounting screw (7). 2. Remove the drive gear (6), driven gear (2) and side plate (3) from the casing. (When reassembling) • Take care no to damage the gasket.
Page 341 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Outer Components 1. Remove the seat (1). 2. Remove the grip (2), (4), (7). 3. Remove the auxiliary change lever guide (3) and position control lever guide (6). 4. Remove the center cover (5).
Page 342 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Lowering Speed Adjusting Valve 1. Remove the lowering speed adjusting valve from hydraulic cylinder block. 2. Tap out the spring pin (8), and remove the grip (5). 3. Remove the internal snap ring (4), and remove the hydraulic adjusting shaft (2).
Page 343 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Lift Arm, Hydraulic Arm and Hydraulic Arm Shaft 1. Disconnect the position control rod from feedback lever. 2. Remove the lift arm setting screws. 3. Draw out the hydraulic arm shaft (5) and right lift arm (6) as a unit.
Page 344: Position Control Valve
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM (4) Position Control Valve Position Control Valve 1. Loosen and remove the position control valve mounting screws. 2. Take out the position control valve (1). (When reassembling) • Take care not to damage the O-rings.
Page 345 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM IMPORTANT • Set screw (3) and spool joint 1 (2) are adjusted to very close accuracy. Do not disassemble them unless necessary. If disassembled due to unavoidable reasons, be sure to make the following adjustments before assembling.
Page 346: Relief Valve
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM (5) Relief Valve Relief Valve 1. Remove the plug (9), and draw out the spring (5) and the poppet (4). 2. Take out the valve seat (3). (When reassembling) • Take care not to damage the O-ring.
Page 347: Hydraulic Pump (Three Point System)
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Clearance between Bushing and Gear Shaft 1. Measure the gear shaft O.D. with and outside micrometer. 2. Measure the bushing I.D. with and inside micrometer or cylinder gauge, and calculate the clearance.
Page 348: Hydraulic Cylinder
Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Clearance between Bushing and Gear Shaft 1. Measure the gear shaft O.D. with and outside micrometer. 2. Measure the bushing I.D. with and inside micrometer or cylinder gauge, and calculate the clearance.
Page 349 Tractor Manuals Scotland L2800, L3400, WSM HYDRAULIC SYSTEM Clearance between Hydraulic Arm Shaft and Bushing 1. Measurement the hydraulic arm shaft O.D. with an outside micrometer. 2. Measurement the bushing I.D. with a cylinder gauge or inside micrometer. 3. If the clearance exceeds the allowable limit. replace.
Page 350 Tractor Manuals Scotland ELECTRICAL SYSTEM Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 351 Tractor Manuals Scotland MECHANISM CONTENTS 1. WIRING DIAGRAM ..................9-M1 2. OPERATOR PRESENCE CONTROL............9-M3 Tractor Manuals Scotland - Please Do Not Copy KiSC issued 08, 2007 A...
Page 352 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM 1. WIRING DIAGRAM [Manual Transmission Type] Color of Wiring W.... White R.... Red 3R/W L..... Blue Y..... Yellow 0.5B/W 0.5R/W B.... Black 3R/W 0.5B/Y 0.5R/B 1.25B/L G.... Green 92 0.5R/W Range Gear...
Page 353 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM [HST Type] Key Stop OPC Timer Solenoid Relay Starter Relay Hazard Unit Head Light Key Stop Fuel Level Solenoid Glow Plug Sensor Water Temperature Sensor Earth Oil Switch Fuse Box Fuse 0.85 L 0.85 W...
Page 354 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM 2. OPERATOR PRESENCE CONTROL The tractor equips operator presence control (OPC) system which automatically stops the engine when operator stands from the seat while shifting the PTO lever, shuttle lever or HST pedal.
Page 355 Tractor Manuals Scotland SERVICING CONTENTS 1. TROUBLESHOOTING ..................9-S1 2. SERVICING SPECIFICATIONS ..............9-S5 3. TIGHTENING TORQUES ................9-S6 4. CHECKING, DISASSEMBLING AND SERVICING........9-S7 [1] CHECKING AND ADJUSTING ...............9-S7 (1) Battery....................9-S7 (2) Main Switch..................9-S9 (3) Safety Switch ..................9-S10 (4) Operator Presence Control ..............9-S1 (5) Starter and Starter Relay ..............9-S13 (6) Glow Control System ................9-S14 (7) Engine Stop Solenoid ...............9-S15...
Page 356 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page All Electrical Battery discharged or defective Recharge or replace 9-S8 Equipment Do Not Battery positive cable disconnected or Repair or replace 9-S7 Operate improperly connected...
Page 357 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM CHARGING SYSTEM Reference Symptom Probable Cause Solution Page Charging Lamp Does Fuse blown (10 A) Replace G-39 Not Light when Main Wiring harness disconnected or improperly Repair or replace – Switch is Turned ON...
Page 358 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM LIGHTING SYSTEM (Continued) Reference Symptom Probable Cause Solution Page Hazard and Turn Fuse blown (10 A) Replace G-39 Signal Light Does Bulb blown Replace G-39 Not Light Wiring harness disconnected or improperly Repair or replace –...
Page 359 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM GAUGES Reference Symptom Probable Cause Solution Page Fuel Gauge Does Not Fuel lever sensor (tank unit) defective Replace 9-S21 Function Wiring harness disconnected or improperly Repair or replace – connected (between panel board and fuel level...
Page 360: Servicing Specifications
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM 2. SERVICING SPECIFICATIONS STARTER MOTOR Item Factory Specification Allowable Limit Commutator O.D. 29.0 mm 28.0 mm 1.14 in. 1.10 in. Mica Undercut 0.50 to 0.80 mm 0.20 mm 0.019 to 0.031 in.
Page 361 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-9.) Item N·m kgf·m ft-lbs Alternator pulley nut 58.3 to 78.9...
Page 362: Checking, Disassembling And Servicing
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM 4. CHECKING, DISASSEMBLING AND SERVICING CAUTION • To avoid accidental short circuit, be sure to attach the positive cable to the positive terminal before the negative cable is attached to the negative terminal.
Page 363 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Battery Specific Gravity 1. Check the specific gravity of the electrolyte in each cell with a hydrometer. 2. When the electrolyte temperature differs from that at which the hydrometer was calibrated, correct the specific gravity reading following the formula mentioned in (Reference).
Page 364: Main Switch
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (2) Main Switch Connector Voltage 1. Measure the voltage with a voltmeter across the connector B terminal and chassis. 2. If the voltage differs from the battery voltage (11 to 14 V), the wiring harness is faulty.
Page 365: Safety Switch
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Main Switch Key at PREHEAT Position 1. Turn and hold the main switch key at the PREHEAT position. 2. Measure the resistance with an ohmmeter across the B terminal and the G terminal, and across the B terminal and the AC terminal.
Page 366: Operator Presence Control
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM HST Pedal Switch (HST Type) 1. Disconnect the HST neutral switch connector. 2. Remove the HST neutral switch (1). 3. Push the switch and measure the resistance between terminal 1 and 2, and between terminal 3 and 4.
Page 367 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Checking Seat Switch 1. Remove the seat. 2. Disconnect the seat switch connector (3). 3. Change the sensor bar angle (1) and measure the resistance between connector terminals, referring to the table below.
Page 368: Starter And Starter Relay
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (5) Starter and Starter Relay Starter Motor B Terminal Voltage 1. Measure the voltage across the B terminal and chassis. 2. If the voltage differs from the battery voltage, check the battery's cable.
Page 369: Glow Control System
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Starter Relay 1. Open the panel board and remove the starter relay. 2. Apply battery voltage between terminal 2 and 4, and check for continuity between terminal 1 and 3. 3. If 0 ohm is not indicated, renew the starter relay.
Page 370: Engine Stop Solenoid
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (7) Engine Stop Solenoid Connector Voltage 1. Disconnect the 2P connector from engine stop solenoid. 2. Turn the main switch key to the "ON" position. 3. Measure the voltage between the terminal 1, terminal 2 and body.
Page 371: Charging System
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Glow Relay 1. Turn the main switch off. 2. Disconnect the 4P connector from glow relay. 3. Measure the voltage across the terminal 3 (Positive) and chassis (Negative). 4. If the voltage differs from the battery voltage, the wiring harness is faulty.
Page 372 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Connector Voltage 1. Turn the main switch OFF. Measure the voltage between the B terminal (1) and the chassis. 2. Turn the main switch ON. Measure the voltage between the IG terminal (3) and the chassis.
Page 373: Combination Switch
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (9) Combination Switch Remove the Combination Switch 1. Remove the panel board (1), and disconnect the combination switch connector 8A (3) after turning the main switch OFF position. 2. Perform the following checkings.
Page 374: Lighting Switch
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (10) Lighting Switch Head Light Switch Continuity when Setting Switch at OFF Position 1. Disconnect the connector 8P from the combination switch. 2. Set the light switch to the OFF position. 3. Measure the resistance with an ohmmeter across the B1 terminal to the T terminal, the B1 terminal to the 1 terminal and the B1 terminal to the 2 terminal.
Page 375: Turn Signal Switch
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (11) Turn Signal Switch Connector Voltage 1. Disconnect the connector 8A from the combination switch. 2. Measure the voltage with a voltmeter across the connector B2 terminal and chassis when the main switch is ON position.
Page 376: Hazard Unir
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (13) Hazard Unir Hazard Unit 1. Disconnect the connector from the hazard unit (1). 2. Measure the voltage with a voltmeter across the h terminal and chassis. 3. If the voltage differs from the battery voltage, the wiring harness is faulty.
Page 377: Disassembling And Assembling
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM [2] DISASSEMBLING AND ASSEMBLING (1) Starter Disassembling Motor 1. Disconnect the connecting lead (9) from the magnet switch (8). 2. Remove the screws (6), and then separate the end frame (4), yoke (2) and armature (1).
Page 378: Alternator
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (2) Alternator Pulley 1. Secure the hexagonal end of the pulley shaft with a double- ended ratchet wrench as shown in the figure, loosen the pulley nut with a socket wrench and remove it.
Page 379 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Rectifier 1. Remove the four screws holding the rectifier and the stator lead wires. 2. Remove the rectifier (1). (1) Rectifier W10191920 Rear End Frame 1. Unscrew the two nuts and two screws holding the drive end frame and the rear end frame.
Page 380: Servicing
Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Bearing on Drive End Side 1. Press out the bearing from drive end frame (3) with a press and jig (1). (1) Jig (3) Drive End Frame (2) Block W10196110 Bearing at Slip Ring Side 1.
Page 381 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Commutator and Mica 1. Check the contact face of the commutator for wear, and grind the commutator with emery paper if it is slightly worn. 2. Measure the commutator O.D. with an outside micrometer at several points.
Page 382 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Brush Holder 1. Check the continuity across the brush holder and the holder support with an ohmmeter. 2. If it conducts, replace the brush holder. Brush holder – Resistance Infinity Holder support...
Page 383 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM (2) Alternator Bearing 1. Check the bearing for smooth rotation. 2. If it does not rotate smoothly, replace it. W10197900 Stator 1. Measure the resistance across each lead of the stator coil with an ohmmeter.
Page 384 Tractor Manuals Scotland L2800, L3400, WSM ELECTRICAL SYSTEM Brush Wear 1. Measure the brush length with vernier calipers. 2. If the measurement is less than allowable limit, replace it. 3. Make sure that the brush moves smoothly. 4. If the brush is defective, replace it.
Page 385 Tractor Manuals Scotland EDITOR : KUBOTA FARM & INDUSTRIAL MACHINERY SERVICE, LTD. 64, ISHIZU-KITAMACHI, SAKAI-KU, SAKAI-CITY, OSAKA, 590-0823, JAPAN PHONE : ( 81 ) 72-241-1129 : ( 81 ) 72-245-2484 E-mail : ksos-pub@kubota.co.jp Printed in Japan 2007. 08, S, EI, EI, e Code No.9Y011-13193...

This manual is also suitable for:

L3400

Kubota L2800 Workshop Manual

General

1 Tractor Identification

2 General Precautions

3 Handling Precautions for Electrical Parts and Wiring

4 Lubricants, Fuel and Coolant

5 Tightening Torques

6 Maintenance

7 Check and Maintenance

8 Special Tools

9 Tires

Mechanism

Servicing

Servicing

Servicing

Mechanism

1 Structure

2 Power Train for Travelling

3 Power Train for Pto

Servicing

1 Troubleshooting

2 Servicing Specifications

4 Checking, Disassembling and Servicing

Servicing

1 Troubleshooting

3 Disassembling and Servicing

Servicing

1 Troubleshooting

2 Servicing Specifications

4 Checking, Disassembling and Servicing

Servicing

1 Troubleshooting

2 Servicing Specifications

4 Checking, Disassembling and Servicing

Mechanism

Servicing

2 Servicing Specifications

4 Checking, Disassembling and Servicing

Mechanism

Servicing

2 Servicing Specifications

4 Checking, Disassembling and Assembling

Servicing

2 Servicing Specifications

4 Checking, Disassembling and Servicing

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Chapters

Troubleshooting

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Summary of Contents for Kubota L2800