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Kubota L210 Troubleshooting
The
Kubota L210 is a 2WD compact utility tractor. This model was manufactured
between 1972 and 1973. The Kubota L210 driveline consists of a 65.3 cu.in (1.07
L) Kubota Z1100-A vertical 4-cycle two cylinder liquid-cooled diesel engine and
sliding gear transmission with 6 forward and 2 reverse gears.
The engine has a cylinder bore of 3.46" (88 mm), piston stroke of 3.46"
(88 mm), rated power of 21 hp (15.7 kW), and maximum torque of 60 hp
(44.5 lb-ft) at 1600 rpm. Max. forward speed - 11.3 mph (18.2 km/h),
maximum reverse speed - 2.8 mph (4.5 km/h).
The open center hydraulic system used a gear pump with rated capacity of
2.9 gpm (10.8 lpm). The hydraulic pressure is 98 bar (1420 psi). The
Kubota L210 was equipped with a manual steering system, differential
mechanical expanding shoe brakes, 4.00x15 front tires, and 9.9x24 rear
tires. The wheelbase is 59 in (1490 mm).
| Engine Troubleshooting |
| Engine will not start or difficult to start |
| Fuel filter is dirty - Clean or replace the filter |
| Closed fuel cock - Open fuel on-off cock to inject fuel |
| Air in fuel lines - Bleed fuel lines |
| Fuel injectors are damaged or dirty - Change fuel injectors |
| Fuel injection pump is faulty - Replace or rebuild injection pump |
| Engine has low compression - Inspect and replace faulty parts |
| Engine stops during operation |
| Engine is not fully warmed up - Warm up to required temperature |
| Fuel-line is leaking air - Retighten clamps, replace defective pipes |
| Fuel injection failed - Use correct settings |
| Clogged fuel filter element - Clean the filter or install new filter element |
| Faulty or dirty injectors - Service or change fuel injectors |
| Engine starts and immediately stops |
| Incorrect setting of fuel injection pump timing - Repair or replace fuel injection pump |
| Clogged fuel filter element - Replace the filter element |
| Fuel injector nozzles are defective or dirty - Change or clean injector nozzles |
| Damaged fuel injection pump - Change pump or rebuild it |
| Air cleaner element is clogged - Change or service air cleaner element |
| Incorrectly adjusted low idle speed - Test and adjust |
| Fuel injection pump failure - Install a new fuel pump or repair |
| Faulty fuel injector nozzles - Replace fuel injector nozzles |
| Incorrect valve clearance - Need to adjust valve clearance |
| Coolant level is low - Fill the radiator to the required level. Any leaks must be repaired |
| Cooling system parts are defective or system is dirty - Flush cooling system or replace faulty parts |
| Lack of engine oil - Check oil level and add oil as required |
| Broken fan belt or unadjusted belt tension - Replace or adjust belt tension properly |
| Thermostat failure - Thermostat needs to be replaced |
| Faulty or dirty injectors - Change fuel injectors |
| Improper fuel injection pressure - Correct the pressure settings |
| Air filter clogging - Clean or replace the air filter element |
| Oil filter element clogged - Replace or service engine oil filter |
| Diesel engine overloaded - Reduce engine load |
| Valve clearance is out of adjustment - Correct valve clearance needs to be set |
| Incorrectly set low idle speed - Test and adjust |
| Fuel pipes or hoses clogging - Service fuel hoses and pipes |
| Engine losing compression: Leaking or broken valves - Valves need to be replaced |
| Engine knocking sound or abnormal noise |
| Fuel injection pump out of timing - Repair or replace fuel injection pump |
| Dirty or defective injector nozzles - Service or replace nozzles if required |
| Engine oil level is insufficient - Fill up the oil to required level |
| Low coolant temperature - Normalize the temperature by warming up the engine |
| Main bearings or crankshaft wear - Replace crankshaft or bearings |
| Piston rings are worn or broken - Replace piston rings |
| Loose flywheel screws - Check the flywheel screws and tighten as required |
| Excessive engine oil consumption |
| External oil leaks: Seals or gaskets are defective - Worn parts need to be replaced |
| Incorrect oil viscosity - Use proper viscosity oil |
| Stuck or defective piston rings - Replace piston rings |
| Worn valve guides and valve stems - Change the valves |
| Scuffed pistons or cylinder liners - Inspect pistons and liners, replace as required |
| Electrical System Troubleshooting |
| Battery does not charge |
| Battery dead cell - Replace the battery |
| Battery electrical wire harness damage - Check battery wires for damage, replace or change |
| Loose or corroded cables and terminals - Tighten or clean terminals and cables |
| Improper belt tension adjustment or damaged belt - Change belt or correctly adjust belt tension |
| Low battery power - Recharge the battery |
| Battery is draining quickly - Service charging system or install new battery |
| Battery wiring harness damage - Inspect battery wiring for damage, replace or repair |
| Loose or corroded battery terminals and cables - Service or tighten battery terminals and cables |
| Low battery output - Battery needs to be recharged |
| Discharged or faulty battery - Replace or charge as required |
| Starter motor failure - Starter needs to be replaced |
| Wiring harness is disconnected or improperly connected - Check wiring harness and reconnect properly |
| Transmission Troubleshooting |
| Difficulty shifting gears |
| Incorrectly adjusted or damaged clutch - Adjust or change the clutch |
| Gear shift linkage is stuck or damaged - Repair or change shift linkage |
| Shift forks are damaged or worn - Change the shift forks |
| Worn gear shift mechanism - Replace worn components |
| Low transmission pressure |
| Insufficient fluid supply - Add transmission fluid as required |
| Transmission oil filter element is dirty (if fitted) - Change or service the transmission oil filter |
| Relief valve is defective - Replace relief valve as required |
| Excessive transmission noise |
| Damaged or worn bearings - Faulty bearings should be replaced |
| Not enough oil in transmission - Check transmission oil level and add oil as required |
| Transmission oil contamination - Change transmission oil |
| Backlash is incorrect or gears are worn - Replace gears or set backlash properly |
| Worn or damaged shift forks - Replace the shift forks |
| Broken gaskets or seals - Replace worn gaskets or seal |
| Transmission case is cracked - Replace case or transmission assembly |
| Hydraulics Troubleshooting |
| Hydraulic system is too hot |
| The system pressure has not been corrected - Make the correct settings |
| Defective or misadjusted main relief valve - Replace or set up the relief valve |
| Hydraulic oil is contaminated - Fill up with fresh hydraulic oil |
| Aeration in hydraulic system - Check the pump seals, suction line, and fittings |
| Hydraulic fluid pressure too low |
| Lack of hydraulic oil - Check oil level and add hydraulic oil as required |
| Hydraulic oil filter is dirty - Service or replace the hydraulic filter |
| Defective hydraulic pump - Check pump flow and change pump if necessary |
| Hydraulic control valve is faulty or out of adjustment - Replace or adjust properly |
| Broken hydraulic cylinder - Inspect the hydraulic cylinder components for damage or wear and change if required |
| Hydraulic pipes are leaking - Identify leaks in the system and repair it |
| 3-point hitch lifts too slowly or can't lift |
| Hydraulic oil level is low - Fill up the hydraulic oil |
| Hydraulic fluid is too cold - Allow fluid to warm |
| Hydraulic fluid filter is clogged - Change the hydraulic filter element or service if required |
| Hydraulic pump malfunction - Test the pump flow rate and install new pump if required |
| Main relief valve is damaged or adjusted improperly - Adjust the valve or replace if necessary |
| Hydraulic spool valve block is not set properly or defective - Replace or adjust correctly |
| Hydraulic cylinder is broken - Check cylinder components for damage or wear and change if necessary |
| Loose or damaged suction line - Tighten or replace |
| Hitch can't drop or drops too slowly |
| Hydraulic spool valve block is not set properly or defective - Set properly or replace |
| Faulty hydraulic cylinder - Check cylinder components for damage or wear and change if necessary |
| Hitch cross shaft is worn - Replace the shaft |
| The hitch has any internal mechanical damage - Replace damaged or worn hitch components |
| Hitch lowering or lifting is not smoothly |
| Air in hydraulic system - Inspect the pump seals, suction pipe, and fittings |
| Hydraulic fluid contamination - Change hydraulic fluid |
| Damaged hydraulic oil pump - Test the pump flow rate and change pump if required |
| Damaged or incorrect adjusted hydraulic control valve - Set correctly or replace |
| Defective hydraulic cylinder - Check cylinder components for damage or wear and change if necessary |
| Steering System Troubleshooting |
| Hard Steering |
| Steering knuckle or steering column is stuck - Inspect steering column and knuckle, replace worn parts |
| Steering gearbox components are worn - Replace defective components of steering gearbox |
| Faulty drag link or tie rod - Replace or repair |
| Insufficient lubrication in steering box - Need to lubricate the gearbox |
| Not adjusted toe-in alignment - Check and adjust toe-in |
| Tires are not correctly inflated - Inflate tires as necessary |
| Excessive steering wheel free play |
| Steering column bearing or shaft is worn - Change faulty parts |
| Steering linkage assembly is worn or loose - Repair or replace steering linkage |
| Worn steering gearbox bearings - Replace the bearings |
| Front wheel hub bearings or steering knuckles are worn - Change hub bearings or knuckles |
| Damaged or worn steering tie-rod ends - Change faulty part |
| Tractor pulls to right or left |
| Worn or loose steering linkage assembly - Repair or replace steering linkage |
| Defective steering knuckle bushing - Replace knuckle bushing |
| Uneven tire pressure - Inflate the tires properly |
| Toe-in adjustment is incorrect - Adjust toe-in correctly |
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| Farm Tractors Technical Specifications |
