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Kubota L3410 Troubleshooting
The
Kubota L3410 is a 4WD compact utility tractor from Grand L10 series. This model
was manufactured between 1998 and 2002. The Kubota L3410 tractor is powered by
100.5 cu.in (1.6 L) Kubota D1703-A 4-cycle vertical 3-cylinder indirect
injection diesel engine with a rated power of 33.6 hp (25.1 kW).
The Kubota L3410 is fitted with 3 types of transmission. Type 1: 8x8 FST
Sync Shuttle fully synchronized transmission (L3410DT). Type 2: 8x8
(16x16 w/creeper) Glide shift transmission (L3410GST). Type 3:
Three-range hydrostatic transmission (L3410HST).
The maximum travel speed (forward and reverse): 16.4 mph (26.4 km/h) /
15 mph (24.1 km/h). The open center hydraulic system includes a gear
pump with a flow of 7 gpm (26.4 lpm). The Kubota L3410 is equipped with
7.00x16 (L3410DT / L3410GST) or 7.20x16 (L3410HST) front tyres and
12.4x24 rear tyres. The wheel base is 65.7" (1670 mm).
Compatible attachments for the tractor: a 72" mid-mount 3-blade mower
deck with cutting height of 1.5-3.5" (37-89 mm), 60" front-mount
snowblower with hydraulic lift, 72" front blade,
Kubota LA481 front end
loader with lift capacity to full height of 1058 lbs (479 kg), and
Kubota BL4690 backhoe with max digging depth of 90.2" (2290 mm).
| Engine Troubleshooting |
| Engine doesn't start or difficult to start |
| Fuel filter clogging - Install new filter element |
| The fuel shut-off valve is closed - Open fuel shut-off valve |
| Fuel-line is leaking air - Retighten clamps, replace defective pipes |
| Clogged or damaged injectors - Clean or replace fuel injectors |
| Fuel injection pump is not working correctly - Rebuild or install a new injection pump |
| Engine has low compression - Check and replace worn parts |
| Engine stalls during operation |
| Engine not warmed up - Normalize the temperature by warming up the engine |
| Air in fuel pipes - Bleed fuel pipes |
| Irregular fuel injection - Adjust fuel injection timing |
| Fuel filter is dirty - Change the filter element |
| Dirty or damaged injectors - Test fuel injectors and change if necessary |
| Engine starts and stalls immediately |
| Incorrectly set fuel injection pump timing - Adjust the fuel injection pump timing correctly |
| Fuel filter is dirty - Service or replace the filter |
| Fuel injector nozzles fault - Change injector nozzles |
| Fuel injection pump failure - Rebuild or change fuel pump |
| Dirty air cleaner - Change or service air cleaner element |
| Engine shuts off while idling |
| Incorrectly set low idle speed - Adjustment required |
| Fuel injection pump is faulty - Replacement or repair required |
| Clogged or defective injector nozzles - Test injector nozzles and replace as required |
| Valve out of adjustment - Adjust valve clearance |
| Not enough coolant - Fill the cooling system. Check and repair damage to the cooling system if required |
| Cooling system is dirty or cooling parts are failed - Flush cooling system or replace faulty parts |
| Low engine oil level - Fill the crankcase with engine oil |
| Broken fan belt or unadjusted belt tension - Adjust belt tension properly or change it |
| Thermostat failure - Check thermostat, replace if necessary |
| Clogged or damaged injectors - Service or change fuel injectors |
| Uneven fuel injection pressure - Repair or replace injection pump |
| Air filter is dirty - Service or change air filter |
| Oil filter is clogged - Replace or clean engine oil filter element |
| Engine is overloaded - Reduce the load or operate the tractor in lower gears |
| Improper valve clearance - Need to adjust valve clearance |
| Low idle speed setting is not correct - Adjust the low idle speed |
| Clogged fuel hoses or pipes - Clean fuel pipes and hoses |
| Engine low compression: Valves are broken or leaking - Valve replacement required |
| Incorrect setting of fuel injection pump timing - Repair or replace fuel injection pump |
| Clogged or defective injector nozzles - Change or clean injector nozzles |
| Not enough engine oil - Checking oil level and add if necessary |
| Engine not warmed up - Warm up to required temperature |
| Main bearings or crankshaft wear - Change defective components as required |
| Piston rings are defective or broken - Install new piston rings |
| Loose flywheel bolts - Inspect flywheel bolts and tighten properly |
| Diesel engine using too much oil |
| Oil leaks: Damaged gaskets or seals - New components need to be installed |
| Oil viscosity is incorrect - Fill up with the proper oil viscosity |
| Worn or broken piston rings - Piston rings need to be replaced |
| Worn valve stems and valve guides - Install new valves |
| Damaged cylinder liners or pistons - Inspect liners and pistons, fit new parts as necessary |
| Electrical System Troubleshooting |
| Battery will not charge |
| Faulty cell in battery - Change the battery |
| Damaged battery electrical wire harness - Inspect electrical wires for damage, change or repair |
| Battery cables and terminals are corroded or loose - Tighten or service terminals and cables |
| Worn belt or improperly adjusted belt tension - Adjust belt tension correctly or change belt |
| Starter motor cranks slow |
| Low battery output - Battery is drained, recharge it |
| Battery drains quickly - Service or change the battery |
| Damaged battery cable harness - Check electrical cables for damage, repair or replace |
| Battery cables and terminals are loose or corroded - Service or tighten battery cables and terminals |
| Low battery output voltage - Battery is drained, charge it |
| Drained or faulty battery - Need to charge or replace the battery |
| Starter motor is defective - Starter needs to be replaced |
| Improperly connected or disconnected wiring harness - Inspect wiring harness and connect properly |
| Transmission Troubleshooting |
| Difficult to shift gears |
| Worn or misadjusted clutch - Clutch needs to be adjusted or changed |
| Gear shift linkage is damaged or loose - Change defective shift linkage |
| Bent or worn shift forks - Change defective shift forks |
| Worn gear shift mechanism - Replace worn components |
| Insufficient transmission fluid pressure |
| Insufficient oil supply - Add transmission oil as required |
| Transmission oil filter is plugged (if fitted) - Change or service the transmission oil filter |
| Relief valve failure - Replace the valve |
| Transmission makes excessive noise |
| Damaged or worn bearings - Change faulty bearings |
| Fluid level is low - Fill the transmission housing with fluid |
| Contaminated transmission fluid - Change transmission fluid |
| Incorrect backlash or gears are defective - Replace gears or adjust backlash properly |
| Worn or damaged shift forks - Change defective shift forks |
| Transmission fluid leakage |
| Worn gaskets or seals - Install new seal or gaskets |
| Cracked transmission case - Install a new transmission case |
| Hydrostatic Transmission Troubleshooting |
| HST transmission noises |
| Contaminated oil or low oil level - Pour fresh oil or add oil to proper level |
| Defective or out of adjustment speed control rod linkage - Adjust or change rod linkage |
| Relief valve sticking - Change relief valve |
| Transmission overload - Reduce loading |
| Defective or worn components of hydrostatic transmission - Change or repair damaged parts |
| Transmission oil overheated |
| Fluid level is low - Fill system with correct transmission fluid level |
| Transmission oil filter element is dirty - Change or service the transmission oil filter |
| Plugged or defective cooling components - Inspect all cooling components and service or change if necessary |
| Excessive transmission load - Reduce the load is required |
| Oil level is insufficient - Check transmission oil level and add oil as required |
| Low charge pressure - Test charge pressure |
| Relief valve is damaged or worn - Change relief valve |
| Transmission fluid leaking |
| Broken gaskets or seals - Install new seal or gaskets |
| Transmission housing internal pressure is excessive - Inspect transmission components for wear or damage and replace if necessary |
| Plugged oil return tube - Clean or replace return tube |
| Hydraulics Troubleshooting |
| Hydraulic system overheats |
| Hydraulic system pressure is not corrected - The pressure must be adjusted correctly |
| Main relief valve is defective or unadjusted - Adjust the valve or replace if necessary |
| Hydraulic oil is dirty - Hydraulic oil change required |
| Hydraulic system sucks air - Inspect the pump seals, suction pipe, and fittings |
| Insufficient hydraulic oil pressure |
| Lack of hydraulic fluid - Add fluid to the hydraulic system |
| Hydraulic fluid filter is dirty - Install a new hydraulic filter element |
| Hydraulic pump not working - Test pump performance and replace pump if necessary |
| Hydraulic spool valve block is defective or set improper - Replace or adjust properly |
| Hydraulic cylinder is broken - Inspect cylinder components for wear or damage and change if required |
| Leakage in hydraulic pipes - Detect leaks in hydraulic system and repair it |
| Three-point hitch lifting is too slow or cannot be lifted |
| Not enough hydraulic oil in the system - Check oil level and add hydraulic oil as required |
| Cold fluid in hydraulic system - Wait for fluid to warm up |
| Dirty hydraulic oil filter - Clean or change hydraulic filter |
| Hydraulic pump is faulty - Test pump performance and replace pump if necessary |
| Main relief valve malfunction or incorrect adjustment - Adjust or change relief valve |
| Damaged or incorrect adjusted hydraulic spool valve - Set correctly or replace |
| Hydraulic cylinder malfunction - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Suction line is damaged or disconnected - Connect or replace |
| Hitch drops too slowly or can't drop |
| Hydraulic spool valve block is not set properly or defective - Adjust properly or change |
| Hydraulic cylinder is not working - Inspect cylinder parts for wear or damage and replace if required |
| Hitch cross shaft is damaged - Replace the shaft |
| The hitch has any internal mechanical damage - Replace defective or worn hitch components |
| Hitch jerks when lift or lower |
| Air trapped in the hydraulic system - Inspect the suction pipe, fittings, and pump seals |
| Contaminated hydraulic fluid - Change hydraulic fluid |
| Damaged hydraulic oil pump - Test the pump flow rate and install new pump if required |
| Damaged or incorrect adjusted hydraulic control valve - Set correctly or replace |
| Broken hydraulic cylinder - Inspect cylinder parts for wear or damage and replace if required |
| Steering System Troubleshooting |
| Stiff steering |
| Steering column is damaged or improperly mounted - Replace the steering column or mount it properly |
| Air in steering system - Air-bleed steering system |
| Toe-in adjustment is incorrect - Check and adjust toe-in |
| Tires are deflated - Need to inflate tires |
| Faulty steering pump - Check the steering pump and replace if necessary |
| Worn or damaged hydrostatic steering unit - Change or repair steering unit if required |
| Relief valve is stuck or faulty - Clean or change the relief valve |
| Steering oil insufficient - Check and refill steering oil |
| Steering system oil leakage - Tighten the steering pipe and hose joints |
| Excessive steering wheel free play |
| Steering column shaft or coupling is worn out - Change faulty part |
| Faulty or worn hydrostatic steering unit - Change or repair steering unit if required |
| Steering pump is faulty - Steering pump needs to be repaired or replaced |
| Steering tie-rod ends or linkage are defective - Change failed part |
| Tractor is pulling to left or right |
| Tires are not correctly inflated - Inflate tires as necessary |
| Improper toe-in adjustment - Adjust toe-in properly |
| Faulty or worn steering linkage or tie-rod ends - Replace damaged part |
| Defective or worn hydrostatic steering unit - Inspect and replace as required |
| Damaged steering cylinder - Repair or replace hydraulic steering cylinder |
| Front hub bearings are improperly adjusted or defective - Change or adjust the bearings properly |
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| Farm Tractors Technical Specifications |
