Specifications, Service, and Repair of Farm and Lawn Tractors

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Kubota LX3310 Troubleshooting

Kubota LX3310 Engine Troubleshooting

Engine starts up hard or won't start: Clogged fuel filter. Install new filter element. Air in the fuel lines. Bleed the fuel lines. Dirty or damaged injection nozzles. Change fuel injection nozzles. Defective fuel injection pump. Rebuild or change fuel pump.

Diesel shuts off while driving: Fuel injection pump timing is wrong. Adjust fuel injection pump as required. Fuel filter element clogging. Clean the filter element. Engine is not fully warmed up. Warm up the engine.

Diesel starts but then stops: Fuel filter element is clogged. Change filter element. Fuel injection pump is faulty. Install a new fuel pump or repair. Dirty air filter. Replace air filter element.

Engine is overheated: Dirty radiator fins or defective radiator cap. Install new cap or clean radiator. Engine coolant is insufficient. Fill radiator to proper level and check components for faults. Broken or loose fan belt. The fan belt needs to be replaced. Engine oil level is low. Checking oil level and add if necessary.

Engine power loss: Clogged injection nozzle. If necessary, replace with a new nozzle. Fuel hoses or lines are clogged. Fuel lines and hoses need to be cleaned. Air filter element clogged. Clean air cleaner element. Worn cylinder head gasket. Gasket should be replaced.

Engine noises or knocks: Engine is not warmed up to the required temperature. Warm up engine as required. Engine oil level is low. Need to add engine oil. Fuel injection pump timing is wrong. Adjust as recommended. Pistons are worn or broken. Pistons replacement required. Connecting rod is worn or not aligned. Align or replace connecting rod.

Engine stops at idle: Low idle speed set incorrectly. Test and adjust. Valve clearance is wrong. Check and adjust as required. Fuel injection pump malfunction. Install a new pump or rebuild.

Oil pressure is insufficient: Not enough oil in the engine. Fill the crankcase with oil. Oil pump is damaged. Install a new pump. Dirty oil filter. Service or change engine oil filter element.

Kubota LX3310 Hydrostatic Transmission Troubleshooting

Hydrostatic transmission is excessively noisy: Speed control pedal linkage is damaged or out of adjustment. Repair or adjust linkage. Excessive transmission load. Reduce loading. Transmission fluid is dirty or fluid level is too low. Pour fresh fluid or add transmission fluid to proper level. Stuck relief valve. Install a new valve. Worn or defective parts of the hydrostatic transmission. Change or repair defective parts.

Transmission fluid overheats: Transmission overloaded. Reduce transmission load. Clogged or damaged cooling components. Inspect all cooling components and service or replace if necessary. Low fluid level. Checking transmission fluid level and add if necessary. Dirty transmission oil filter element. Clean or change transmission oil filter.

Power is too low: Low fluid level. Add fluid to the transmission housing. Relief valve malfunction. Install a new valve. Speed control linkage is defective or unadjusted. Change or adjust linkage.

Transmission fluid leaks: Clogged transmission fluid return pipe. Clean or change return pipe. Seals or gaskets are worn. Seals and gaskets need to be replaced. High internal transmission housing pressure. Replace worn components.

Kubota LX3310 Hydraulics Troubleshooting

Hydraulic system is overheated: Hydraulic oil type is wrong. Correct type of oil must be used. Hydraulic oil contamination. Change the oil. Air in the hydraulic system. Air bleeding. Damaged main relief valve. Relief valve replacement required.

Hydraulic fluid pressure is low: Low hydraulic fluid level. Checking hydraulic fluid level and add if necessary. Hydraulic oil filter is clogged. Hydraulic filter maintenance required. Hydraulic piping is leaking. Find leaks in the system and fix it. Not adjusted hydraulic spool valve. Need to adjust spool valve. Hydraulic pump not working. Replace or repair hydraulic fluid pump. Broken hydraulic cylinder. Install a new hydraulic cylinder or repair it.

Hitch won't raise or raises slowly: Hydraulic pump is faulty. Change or repair hydraulic fluid pump. Main relief valve malfunction. Relief valve need to be replaced. Damaged hydraulic control valve. Install a new hydraulic valve or repair it. Hydraulic cylinder failure. Repair or install a new hydraulic cylinder. Hydraulic fluid level low. Fill up the hydraulic fluid. Clogged hydraulic oil filter element. Replace hydraulic filter element or service if necessary. Excessive loading on the hitch. Reduce hitch load.

Hitch cannot be dropped or dropping is too slow: Hydraulic cylinder malfunction. Replace or repair hydraulic cylinder. Incorrect adjusted hydraulic spool valve. Adjust the spool valve correctly. Damaged hitch cross shaft. Replace the shaft. The 3-point hitch is not adjusted. Adjust the hitch.

Hitch lowering or lifting is jerky: Hydraulic fluid is dirty. Hydraulic fluid change required. Damaged hydraulic pump. Replace or repair hydraulic fluid pump. There is air in the hydraulic system. Bleed hydraulic system. Faulty hydraulic control valve. Install a new hydraulic valve or repair it. Faulty hydraulic cylinder. Install a new hydraulic cylinder or repair it.

Kubota LX3310 Steering Troubleshooting

Excessive steering wheel play: Worn steering column shaft or coupling. Replace defective component. Damaged hydraulic steering pump. Repair or change steering pump. Steering linkage assembly is worn or loose. Replace or repair steering linkage. Defective or worn power steering control valve. Replace or repair steering control valve as required.

Heavy steering: Air lock in hydraulic steering system. Bleed air from system. Clogged steering filter element. Service steering filter. Steering oil level is insufficient. Checking steering oil level and add it if necessary. Power steering control valve has wear or damage. Inspect and replace as required. Steering pump not working. Steering pump needs to be replaced or repaired. Pump flow control valve is damaged or stuck. Change or flush control valve. Improperly mounted or worn steering column. Mount the steering column as required or change it. Uneven tire pressure. Inflate the tires properly. Improper toe-in. Check and adjust toe-in. Steering cylinder leaks. Replace worn seal sleeves or damaged piston rod.

Tractor is pulling to left or right: Power steering control valve has wear or malfunction. Repair or replace the steering control valve. Steering cylinder is damaged. Repair or replace steering cylinder. Not adjusted toe-in. Adjust toe-in wheels. Loose or worn steering linkage components. Inspect and replace as required. Defective or improperly adjusted front wheel bearings. Adjust correctly or install new bearings. Uneven wear on front tyres. Replace the tyres.

Kubota LX3310 Electrical System Troubleshooting

Battery won’t charge: Wiring connections are corroded or loose. Service or tighten connections. Defective battery terminal connectors. Change terminal connectors. Battery dead cell. Change the battery. Damaged or loose belt. Install a new belt or adjust belt tension.

Starter cranks slow: Battery voltage is low. Battery needs to be recharged. Battery drains quickly. Battery needs to be serviced or replaced. Bad terminals or disconnected battery cables. Check cables and clean or change terminals.

Starter will not crank: Battery is drained or defective. Recharge or replace battery. Battery cables are disconnected or improperly connected. Inspect cables and connect properly. Low battery output. Recharge the battery. Faulty starter motor. Replace or repair starter.

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