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Kubota L185 Troubleshooting

Kubota L185 Engine Troubleshooting

Engine difficult to start or doesn't start: Fuel filter plugging. Clean or change the filter. Air trapped in fuel system. Bleed air. Fuel injection nozzles fault. If necessary, replace with a new nozzle. Fuel injection pump malfunction. Repair or install new pump.

Engine shuts off suddenly while running: Improper fuel injection timing. Adjust fuel injection pump as required. Clogged fuel filter. Change filter element. Engine not warmed up. Engine is not warmed up to the required temperature.

Diesel starts but then stops: Fuel filter element clogging. Install new filter element. Fuel injection pump malfunctioning. Change pump or rebuild it. Dirty air filter element. Service air cleaner.

Engine overheated: Dirty radiator fins or faulty radiator cap. Change cap or clean radiator. Coolant level is low. Add coolant and check the components of cooling system. Excessive wear of the fan belt. Replace as required. Insufficient engine oil. Check oil level and add oil as required.

Engine power loss: Fuel injection nozzles are damaged or dirty. Change fuel injection nozzles. Restricted fuel lines or hoses. Service fuel lines and hoses. Air filter clogged. Change air filter element. Leaking cylinder head gasket. Cylinder-head gasket replacement required.

Engine noises or knocks: Engine is not fully warmed up. Warm up the engine. Engine oil level is insufficient. Fill up the engine oil. Improper setting of fuel injection pump timing. Adjust as recommended. Pistons are worn or broken. Pistons replacement required. Connecting rod is misaligned or defective. Need to align or replace the connecting rod.

Engine stalls while idling: Improperly adjusted low idle speed. Correct low idle adjustment. Valve out of adjustment. Adjustment procedure required. Damaged fuel injection pump. Repair or install a new fuel pump.

Low oil pressure: Oil level is low. Add oil to the engine crankcase. Oil pump is defective. Repair or replace. Oil filter element is dirty. Change or service engine oil filter.

Kubota L185 Transmission Troubleshooting

Transmission is excessively noisy: Backlash is incorrect or gears are damaged. Adjust backlash correctly or replace the gears. Worn or bent gear shift forks. Change defective shift forks. Shaft splines are worn or stuck. Change the shaft. Transmission fluid level is low. Checking transmission fluid level and add if necessary. Bearings are broken or worn. Install new bearings. Transmission fluid is contaminated. Fill up with fresh transmission fluid.

Gears are hard to shift: Worn or rusty gear shift linkage. Install a new gear shift linkage. Clutch is out of adjustment or defective. Adjust or install new clutch. Damaged or worn gear shift forks. Change the shift forks. Gearshift mechanism is damaged. Replace or repair the mechanism.

Insufficient transmission oil pressure: Transmission fluid level is low. Fill the transmission housing to proper fluid level. Plugged transmission oil filter (if equipped). Clean or change transmission oil filter. Relief valve is damaged. Replace relief valve.

External oil leaks: Damaged seals or gaskets. Gaskets or seal need to be replaced. Transmission fluid level is high. Correct the fluid level.

Kubota L185 Hydraulic System Troubleshooting

Hydraulic system overheating: Wrong hydraulic fluid type. Pour the proper type of fluid. Hydraulic fluid is contaminated. Fill up with new hydraulic fluid. Air in the hydraulic system. Air bleeding. Defective main relief valve. Replace relief valve.

Hydraulic oil pressure is insufficient: Hydraulic fluid level low. Fill the system to proper hydraulic fluid level. Dirty hydraulic oil filter element. Change hydraulic filter element or clean if necessary. Leaking hydraulic lines. Inspect hydraulic system for leaks and repair it. Hydraulic control valve block is out of adjustment. Control valve needs to be adjusted. Defective hydraulic pump. Install a new hydraulic fluid pump. Broken hydraulic cylinder. Change or repair hydraulic cylinder.

3-point hitch cannot be raised or raising is too slowly: Faulty hydraulic pump. Replace or repair hydraulic fluid pump. Main relief valve is damaged. Replace relief valve. Hydraulic spool valve is damaged. Repair or replace hydraulic valve. Broken hydraulic cylinder. Repair or change hydraulic cylinder. Hydraulic fluid is insufficient. Checking hydraulic fluid level and add if necessary. Clogged hydraulic fluid filter. Replace filter element or clean if required. Heavy load on the hitch. Load needs to be reduced.

Hitch cannot be lowered or lowering is too slowly: Hydraulic cylinder is defective. Repair or change hydraulic cylinder. Not adjusted hydraulic control valve. Need to adjust. Lift arm shaft is worn. Replace the shaft. Misadjusted hitch. The three-point hitch must be adjusted.

Hitch drop or lift is jerky: Contaminated hydraulic oil. Change hydraulic oil. Hydraulic pump malfunction. Replace or repair hydraulic oil pump. Air in the hydraulic system. Air bleeding. Defective hydraulic spool valve. Replace or repair the valve. Hydraulic cylinder not working. Change or repair hydraulic cylinder.

Kubota L185 Steering Troubleshooting

Excessive play in steering: Worn steering column bearing or shaft. Change faulty parts. Loose or worn steering linkage components. Check and replace as required. Steering gearbox bearings are worn. Bearings should be changed. Find faulty components and replace as required.

Steering wheel turns hard: Steering column or steering knuckle sticking. Check steering column and knuckle, change worn components as required. Steering gearbox parts are worn. Replace defective parts of steering box. Damaged tie rod or drag link. Change or rebuild. Steering gearbox oil level is low. Checking steering oil level and add it if necessary. Incorrect toe-in. Tires are incorrectly inflated. Inflate as required.

Front wheels wander to left or right: Worn or loose steering linkage assembly. Repair or change steering linkage. Steering knuckle bushing is worn. Change defective steering gear box components. Uneven wear on front tires. Replace the tires. Incorrect toe-in. Adjust toe-in correctly.

Kubota L185 Electrical System Troubleshooting

Battery is not charging: Loose or corroded cable connections. Clean or tighten connections. Faulty battery terminal clamps. Change terminal clamps. Defective battery. Battery change required. Loose or defective belt. Install a new belt or adjust belt tension.

Starter motor turns slow: Battery power is low. Battery is drained, charge it. Battery is draining quickly. Battery needs to be serviced or replaced. Corroded battery terminals or disconnected wires. Connect cables correctly or replace terminals.

Starter will not work: Battery is low or faulty. Change or recharge battery. Battery cables are disconnected or improperly connected. Inspect cables and connect properly. Low battery capacity. Battery needs to be recharged. Defective starter motor. Repair or replace starter.