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Kubota B1700 Troubleshooting

Kubota B1700 Engine Troubleshooting

Engine starts up hard or won't start: Fuel filter plugged. Replace filter element. Air in the fuel pipes. Bleed the fuel pipes. Damaged or dirty injection nozzles. If necessary, replace with a new nozzle. Defective fuel injection pump. Replace or repair injection pump.

Engine stops suddenly during operation: Improper fuel injection timing. Set up as recommended. Fuel filter element clogging. Service or replace the filter. Engine is not warmed up to the required temperature. Warm up engine as required.

Diesel starts and stops: Dirty fuel filter. Clean the filter or install new filter element. Faulty fuel injection pump. Rebuild or change fuel pump. Air filter is clogged. Replace air filter element.

Engine overheating: Damaged radiator cap or dirty radiator core. Change cap or clean radiator. Coolant level is low. The cooling system needs to be refilled and checked for faults. Fan belt is broken or worn. Belt replacement is recommended. Engine oil insufficient. Check and refill engine oil.

Low engine power: Dirty or damaged injection nozzles. Install a new kit of correctly balanced nozzles. Fuel hoses or lines are dirty. Clean fuel hoses and lines. Clogged air cleaner. Clean or change. Worn cylinder head gasket. Change cylinder head gasket.

Abnormal engine knocking or noise: Low coolant temperature. Normalize the temperature by warming up the engine. Not enough engine oil. Fill up the oil to required level. Incorrect adjustment of fuel injection pump timing. Check the fuel injection pump timing adjustment. Worn or scored pistons. Replace the pistons as required. Connecting rod failure or misalignment. Align or replace connecting rod.

Engine stops when idling: Too low idle RPM. Adjust low idling as recommended. Valve clearance is out of adjustment. Correct valve clearance. Fuel injection pump is not operating properly. Repair or replace injection pump.

Oil pressure is insufficient: Engine oil insufficient. Need to add oil. Oil pump malfunction. Replace as required. Dirty oil filter element. Change or clean engine oil filter element.

Kubota B1700 Transmission Troubleshooting

Transmission makes excessive noise: Incorrect backlash or gears are worn. Adjust backlash properly or replace the gears. Shift forks are bent or worn out. Shift forks need to be changed. Shaft splines are stuck or worn out. Replace defective shaft. Low oil level. Check and refill the transmission oil. Worn or broken bearings. Change the bearings. Transmission oil is dirty. Transmission oil change required.

Hard shifting: Corroded or worn gear shift linkage. Lubricate or replace shift linkage. Worn or unadjusted clutch. Change or adjust clutch. Shift forks are worn or bent. Install new shift forks. Gear shifting mechanism is defective. Defective parts must be replaced.

Insufficient transmission oil pressure: Transmission oil level is low. Check transmission oil level and add oil as required. Clogged transmission fluid filter (if equipped). Service or replace the transmission fluid filter. Relief valve failure. Replace relief valve.

Transmission fluid leaking: Damaged seals or gaskets. Change defective gaskets or seal. Transmission oil level is high. Correct the oil volume.

Hydrostatic Transmission Troubleshooting

Hydrostatic transmission noise: Speed control pedal linkage is bent or not adjusted. Repair or adjust linkage. Transmission is under excessive load. Reduce loading. Dirty transmission fluid or insufficient fluid level. Pour fresh fluid or add transmission fluid to proper level. Relief valve malfunction. Change relief valve. Worn or defective transmission components. After disassembling and inspection, change defective components.

Transmission fluid overheats: Transmission overload. Reduce the load is required. Defective or plugged cooling components. Check all cooling components and change or clean if required. Transmission fluid insufficient. Checking transmission fluid level and add if necessary. Transmission oil filter is dirty. Service or replace the transmission oil filter.

Power is too low: Transmission fluid level is low. Need to add transmission fluid. Relief valve failure. Replace the valve. Worn or unadjusted speed control linkage. Adjust or repair linkage.

Transmission oil leakage: Clogged oil drain line. Clean or replace drain line. Damaged seals or gaskets. Change defective gaskets or seal. Transmission case internal pressure is too high. Change defective components.

Kubota B1700 Hydraulic System Troubleshooting

Hydraulic system overheats: Improper hydraulic fluid type. Use the proper type of hydraulic fluid. Dirty hydraulic oil. The oil must be changed. Air in hydraulic system. Bleed air from hydraulic system. Main relief valve is faulty. Relief valve must be changed.

Insufficient hydraulic oil pressure: Hydraulic fluid is insufficient. Fill the system to proper hydraulic fluid level. Hydraulic oil filter is clogged. Service the hydraulic filter or change if required. Leaks in hydraulic lines. Inspect the system for leaks and fix it. Hydraulic control valve is out of adjustment. Need to make adjustment. Defective hydraulic pump. Change or repair hydraulic fluid pump. Hydraulic cylinder failure. Replace or repair hydraulic cylinder.

3-point hitch won't lift or lifts slowly: Defective hydraulic pump. Change or repair hydraulic fluid pump. Faulty main relief valve. Relief valve replacement required. Defective hydraulic control valve. Repair or change hydraulic valve. Hydraulic cylinder is faulty. Replace or repair hydraulic cylinder. Low hydraulic oil level. Need to add oil. Clogged hydraulic oil filter. Clean or change hydraulic filter. Excessive loading on the hitch. Reduce loading.

3-point hitch won't lower or lowers slowly: Defective hydraulic cylinder. Install a new hydraulic cylinder or repair it. Incorrect setting hydraulic control valve block. Set correctly. Worn lift arm shaft. Change the shaft. Misadjusted hitch. Adjust as required.

Hitch jerks when drop or lift: Hydraulic oil is contaminated. Fill up with fresh hydraulic oil. Hydraulic pump failure. Replace or repair hydraulic oil pump. Air in hydraulic system. Bleed air from hydraulic system. Defective hydraulic spool valve. Repair or change the valve. Hydraulic cylinder is faulty. Replace or repair hydraulic cylinder.

Kubota B1700 Steering Troubleshooting

Excessive steering wheel free play: Steering column shaft or coupling is worn out. Change faulty component. Worn steering pump. Install a new hydraulic steering pump. Worn or loose steering linkage assembly. Replace or repair steering linkage. Power steering control valve has malfunction or wear. Inspect and replace as required. Steering gear box components are damaged. Change defective steering box parts.

Steering is stiff: Air lock in hydraulic steering system. Need to bleed air. Steering filter clogging. Replace steering filter element. Low steering fluid level. Fill the steering system with fluid. Steering control valve has wear or damage. Check and replace as required. Steering gear box parts are worn. Change defective power steering box components. Damaged hydraulic steering pump. Steering pump needs to be repaired or replaced. Steering pump control valve is faulty or stuck. Service or change control valve. Incorrectly mounted or defective steering column. Mount the steering column correctly or replace it. Uneven wear on front tyres. Replace the tyres. Not adjusted toe-in. Check and adjust toe-in.

Tractor is pulling to left or right: Power steering box parts are worn. Defective power steering box components must be replaced. Steering control valve has malfunction or wear. Inspect and change as required. Not adjusted toe-in. Check toe-in and correct. Steering linkage components are loose or worn. Change or repair steering linkage. Improperly adjusted or defective front hub bearings. Adjust correctly or replace bearings. Front tyres wear unevenly. Change the tyres.

Kubota B1700 Electrical System Troubleshooting

Battery will not charge: Loose or corroded wire connections. Clean or tighten wiring connections. Faulty battery terminal clamps. Terminal clamps should be changed. Defective battery. Use a new battery. Worn or loose belt. Adjust belt tension or replace belt.

Starter cranks slow: Battery power is low. Battery is drained, charge it. Battery drains quickly. Service charging system or replace battery. Battery terminals are corroded or wires are disconnected. Check wiring connections and replace or clean terminals.

Starter motor is not working: Battery is discharged or worn. Charge or replace the battery. Disconnected or incorrectly connected wires. Inspect battery wires and connect correctly. Battery power is low. Battery is drained, recharge it. Starter motor failing. Repair or replace starter.