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Kubota B2710 Troubleshooting

Kubota B2710 Diesel Engine Troubleshooting

Engine starts hard or will not start: Fuel filter element is dirty. Install new filter element. Air in the fuel pipes. Bleed the fuel pipes. Damaged or dirty injection nozzles. Change fuel injection nozzles. Fuel injection pump malfunction. Change pump or rebuild it.

Engine shuts off suddenly while running: Fuel injection pump timing is wrong. Adjust according to specifications. Clogged fuel filter. Service the filter. Engine is not preheated. Warm up the engine.

Engine starts and stalls suddenly: Fuel filter element is clogged. Clean the filter or install new filter element. Fuel injection pump damage. Repair or change injection pump. Dirty air cleaner. Clean or change.

Engine overheated: Radiator fins are dirty or radiator cap is defective. Clean radiator or replace cap. Coolant level is low. Top up coolant fluid and check system for leaks. Fan belt is worn or faulty. Replace the fan belt. Engine oil level is low. Check oil level and add oil as required.

Loss of engine power: Clogged injection nozzle. Service or change injection nozzles. Fuel lines or hoses clogging. Clean fuel lines and hoses. Air filter is clogged. Clean or replace the element. Cylinder-head gasket is leaking. Change cylinder head gasket.

Abnormal engine knocking or noise: Engine is not fully warmed up. Warm up engine as required. Engine oil level is low. Need to add engine oil. Improper setting of fuel injection pump timing. Set up as recommended. Pistons are broken or worn. Pistons need to be replaced. Misaligned or defective connecting rod. Connecting rod must be aligned or replaced.

Engine stops at low idle speed: Incorrectly adjusted low idle speed. Adjust the low idle speed. Valve clearance is wrong. Adjustment procedure required. Fuel injection pump failure. Repair or change injection pump.

Oil pressure is insufficient: Low crankcase oil level. Need to add oil. Oil pump is worn or damaged. Repair or change. Clogged oil filter element. Clean or change engine oil filter.

Kubota B2710 Hydrostatic Transmission Troubleshooting

Hydrostatic transmission noises: Speed control linkage is worn or unadjusted. Change or adjust linkage. Transmission is under excessive load. Reduce loading. Oil is dirty or oil level is too low. Add oil to proper level or pour fresh transmission oil. Stuck relief valve. Replace relief valve. Transmission parts are worm or defective. Replace or repair defective components.

Transmission oil overheated: Transmission overload. Reduce the load is required. Clogged or damaged cooling components. Check all cooling components and change or clean if required. Insufficient transmission oil. Add oil to the transmission housing. Transmission fluid filter is clogged. Service or replace the transmission fluid filter.

Low power: Insufficient transmission fluid. Add fluid to the transmission housing. Defective relief valve. Replace relief valve as required. Defective or not adjusted speed control pedal linkage. Repair or adjust linkage.

Transmission oil leakage: Oil return tube is plugged. Clean or replace the tube. Broken seals or gaskets. Seals and gaskets replacement required. High internal transmission housing pressure. Check hydrostatic transmission components for defect or damage and change if necessary.

Kubota B2710 Hydraulic System Troubleshooting

Hydraulic system overheats: Hydraulic fluid type is wrong. Use correct type of hydraulic fluid. Contaminated hydraulic fluid. Change hydraulic fluid. There is air in the hydraulic system. Bleed hydraulic system. Main relief valve malfunction. Change relief valve.

Low hydraulic system pressure: Hydraulic oil level low. Need to add oil. Clogged hydraulic fluid filter element. Change hydraulic filter element or clean if necessary. Leaking hydraulic pipes. Inspect hydraulic system for leaks and repair it. Incorrect adjusted hydraulic control valve. Adjust correctly. Hydraulic pump malfunction. Replace or repair hydraulic fluid pump. Hydraulic cylinder malfunction. Replace or repair hydraulic cylinder.

3-point hitch won't lift or lifts slowly: Damaged hydraulic pump. Install a new hydraulic fluid pump. Faulty main relief valve. Relief valve must be changed. Faulty hydraulic spool valve. Install a new hydraulic valve or repair it. Broken hydraulic cylinder. Replace or repair hydraulic cylinder. Insufficient hydraulic oil. Need to add oil. Hydraulic fluid filter element is clogged. Replace filter element or clean if required. Excessive load on hitch. Load needs to be reduced.

Hitch cannot be dropped or dropping is too slow: Hydraulic cylinder malfunction. Replace or repair hydraulic cylinder. Incorrect setting hydraulic control valve block. Set correctly. Damaged hitch rock shaft. Install a new shaft. The 3-point hitch is not adjusted. Adjust the hitch.

Hitch lift or drop is not smoothly: Hydraulic fluid is contaminated. Fill up with new hydraulic fluid. Hydraulic pump is faulty. Change or repair hydraulic oil pump. Air in hydraulic lines. Bleed hydraulic lines. Hydraulic spool valve block is defective. Install a new hydraulic valve or repair it. Hydraulic cylinder is faulty. Repair or replace hydraulic cylinder.

Kubota B2710 Steering Troubleshooting

Steering wheel has too much free-play: Worn steering column coupling or shaft. Replace faulty component. Steering pump is worn. Repair or change steering pump. Steering linkage assembly is worn or loose. Change or repair steering linkage. Steering control valve has malfunction or wear. Check and replace as required. Steering box components are worn out. Change defective steering gear box components.

Steering is stiff: Air in steering hydraulic system. Air-bleed steering system. Steering filter clogging. Clean or replace filter element. Not enough steering oil. Check oil level and add steering oil as required. Steering control valve is worn or defective. Change or repair steering control valve if required. Steering gearbox parts are faulty. Change defective steering box parts. Damaged hydraulic steering pump. Install a new steering pump. Faulty or stuck pump flow control valve. Replace or service control valve. Incorrectly mounted or defective steering column. Mount the steering column correctly or replace it. Tires have uneven wear. Replace the tires. Improper toe-in. Check and adjust toe-in.

Tractor is pulling to right or left: Steering gear box parts are faulty. Defective parts of power steering gearbox must be replaced. Steering control valve is damaged or worn. Inspect and replace as required. Incorrect toe-in. Adjust toe-in properly. Loose or worn steering linkage components. Replace or repair steering linkage. Improperly adjusted or defective front wheel bearings. Replace the bearings or adjust it properly. Tire pressure uneven. Inflate the tires correctly.

Kubota B2710 Electrical Troubleshooting

Battery cannot be charged: Corroded or loose electrical wire connections. Clean or tighten wiring connections. Battery terminal connectors are defective. Replace terminal connectors. Faulty cell in battery. Use a new battery. Worn or loose belt. Adjust belt tension or install a new belt.

Starter cranks slow: Low battery voltage. Battery is drained, charge it. Battery won’t hold charge. Service or change the battery. Disconnected wiring or bad battery terminals. Check wiring connections and replace or clean terminals.

Starter will not crank: Battery is low or faulty. Replace or charge as required. Wiring harness is disconnected or improperly connected. Check wiring harness and connect as required. Low battery capacity. Battery needs to be recharged. Starter motor is faulty. Repair or change starter.