Specifications, Service and Repair of Farm and Lawn Tractors

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Kubota BX2350 Troubleshooting

Kubota BX2350 Engine Troubleshooting

Engine starts hard or will not start: Dirty fuel filter. Replace the filter element. Air trapped in fuel system. Bleed air. Defective injection nozzle. If necessary, replace with a new nozzle. Fuel injection pump is broken. Replace or rebuild injection pump.

Engine shuts off suddenly while running: Timing of fuel injection pump is incorrect. Check the fuel injection pump timing adjustment. Fuel filter element clogging. Clean or change the filter. Engine not warmed up. Warm up the engine.

Diesel starts and stalls immediately: Fuel filter element is dirty. Service the filter. Defective fuel injection pump. Repair or install a new fuel pump. Dirty air filter. Clean or replace the element.

Engine overheating: Radiator fins are dirty or radiator cap is defective. Clean radiator or change cap. Coolant level is low. Add coolant fluid to cooling system and also check it for leaks. Fan belt is worn or faulty. Replace as required. Engine oil level is insufficient. Fill up the oil to required level.

Engine loses power: Fuel injection nozzles fault. Check injection nozzles and replace if required. Fuel hoses or lines are clogged. Clean fuel hoses and lines. Clogged air filter. Service air cleaner. Worn cylinder head gasket. Change cylinder head gasket.

Engine knocks or noises: Engine is not preheated. Engine is not warmed up to the required temperature. Not enough engine oil. Fill up the engine oil. Improper setting of fuel injection pump timing. Set the fuel pump timing correctly. Broken or worn pistons. Install new pistons. Connecting rod is not aligned or worn. Replace or align connecting rod.

Engine stops at low idle speed: Too low idle RPM. Adjust as required. Excessive valve clearance. Have it adjusted. Defective fuel injection pump. Change or repair the pump.

Low oil pressure: Not enough oil in the engine. Add oil as required. Oil pump malfunction. Check and replace if necessary. Clogged oil filter. Service or change engine oil filter element.

Kubota BX2350 Hydrostatic Transmission Troubleshooting

HST transmission noise: Worn or out of adjustment speed control linkage. Repair or adjust linkage. Excessive transmission load. Reduce the load is required. Fluid is contaminated or fluid level is insufficient. Pour fresh fluid or add transmission fluid to proper level. Relief valve failure. Change the valve. Transmission components are damaged or worn. Replace or repair defective components.

Hot transmission oil: Transmission overload. Load needs to be reduced. Clogged or damaged cooling components. Inspect all cooling components and service or change if necessary. Insufficient transmission fluid. Fill the transmission housing to proper fluid level. Dirty transmission fluid filter. Replace or service transmission fluid filter.

Low power: Transmission fluid insufficient. Checking transmission fluid level and add if necessary. Relief valve malfunction. Replace valve as required. Speed control pedal linkage is bent or not adjusted. Replace or adjust linkage.

Transmission oil leaking: Plugged oil return tube. Clean or replace return tube. Broken seals or gaskets. Change defective seal or gaskets. High internal transmission case pressure. Replace worn components.

Kubota BX2350 Hydraulics Troubleshooting

Hydraulics overheating: Hydraulic fluid type is wrong. Use correct type of hydraulic fluid. Hydraulic oil contamination. Change the oil. There is air in the hydraulic system. Bleed hydraulic system. Main relief valve malfunctioning. Relief valve need to be replaced.

Hydraulic oil pressure is insufficient: Hydraulic oil is insufficient. Checking hydraulic oil level and add if necessary. Clogged hydraulic oil filter. Service the hydraulic filter or change if required. Hydraulic piping is leaking. Inspect hydraulic system for leaks and repair it. Hydraulic control valve is out of adjustment. Need to make adjustment. Hydraulic pump failure. Repair or replace hydraulic fluid pump. Defective hydraulic cylinder. Repair or replace hydraulic cylinder.

Hitch does not raise or raises very slowly: Hydraulic pump is faulty. Install a new hydraulic oil pump. Faulty main relief valve. Replace relief valve. Hydraulic spool valve is damaged. Repair or change hydraulic valve. Hydraulic cylinder failure. Repair or install a new hydraulic cylinder. Insufficient hydraulic oil. Need to add oil. Hydraulic fluid filter element is clogged. Service or replace the hydraulic filter. Excessive load on hitch. Load needs to be reduced.

3-point hitch cannot be lowered or lowering is too slowly: Defective hydraulic cylinder. Repair or replace hydraulic cylinder. Hydraulic control valve block is out of adjustment. Control valve needs to be adjusted. Hitch rock shaft is damaged. Install a new shaft. The three-point hitch is not adjusted. The hitch must be adjusted.

Hitch lift or drop is not smoothly: Contaminated hydraulic oil. Change hydraulic oil. Damaged hydraulic pump. Change or repair hydraulic oil pump. Air in the hydraulic system. Air bleeding. Hydraulic spool valve is faulty. Repair or replace the valve. Hydraulic cylinder is faulty. Repair or replace hydraulic cylinder.

Kubota BX2350 Steering Troubleshooting

Excessive steering wheel free play: Worn steering column shaft or coupling. Change faulty part. Defective hydraulic steering pump. Repair or change steering pump. Loose or worn steering linkage parts. Inspect and change as required. Worn or damaged hydrostatic steering unit. Replace or repair steering unit as required.

Steering is hard: Air in steering hydraulic system. Need to bleed air. Steering filter is plugged. Replace steering filter element. Low steering fluid level. Fill the steering system with fluid. Hydrostatic steering unit is worn or defective. Check and replace as required. Worn steering pump. Steering pump needs to be repaired or replaced. Steering pump control valve is faulty or stuck. Service or change control valve. Worn or incorrectly fitted steering column. Replace the steering column or refit it correctly. Front tires wear unevenly. Change the tires. Not adjusted toe-in. Adjust toe-in wheels. Steering cylinder leakage. Change worn piston rod or damaged cylinder seals.

Tractor pulls to left or right: Hydrostatic steering unit has damage or wear. Inspect and change as required. Faulty steering cylinder. Repair or change hydraulic steering cylinder. Improper toe-in. Check toe-in and correct. Steering linkage assembly is worn or loose. Repair or change steering linkage. Worn or incorrectly adjusted or worn front wheel bearings. Adjust correctly or change bearings. Front tyres are worn unevenly. Install new tyres.

Kubota BX2350 Electrical System Troubleshooting

Battery does not charge: Loose or corroded electrical wiring connections. Tighten or service cable connections. Battery terminal connectors are defective. Replace terminal connectors. Battery is defective. Install a new battery. Loose or defective belt. Adjust belt tension or change the belt.

Starter cranks slowly: Low battery power. Low battery charging, charge as required. Battery won’t hold charge. Battery needs service or replacement. Terminals are faulty or battery cables are disconnected. Connect wires properly or change terminals.

Starter motor won't turn: Battery is discharged or worn. Replace or charge as required. Battery cables are disconnected or improperly connected. Inspect cables and connect properly. Low battery output. Recharge the battery. Faulty starter motor. Repair or change starter.

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