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Kubota G6200 Troubleshooting
The
Kubota G6200 garden tractor was manufactured between 1986 and 1990. The Kubota
G6200 driveline consists of a Kubota D640 3-cylinder vertical water-cooled
naturally aspirated diesel engine and 3-range hydrostatic transmission with
infinite forward and reverse gears.
A 38.9 cubic inches (637 cc) engine has a cylinder bore of 2.6" (66 mm),
piston stroke of 2.45" (62 mm), and rated power of 16 hp (11.9 kW). Max.
forward speed - 6.5 mph (10.5 km/h), max. reverse speed - 3.2 mph (5.1
km/h).
The tractor was equipped with a manual steering system, disc brakes,
16x6.50-8 front tires, and 23x10.5-12 rear tires. The wheelbase is 47.2"
(1190 mm). The Kubota G6200 can be equipped with the following
attachments: a 40" mid-mount RC40 mower deck, 44" mid-mount 3-blade RC44
mower deck, 48" mid-mount 3-blade RC48 mower deck, 38" front-mount
snowblower, 46" front-mount snowblower, and 46" front-mount blade.
| Diesel Engine Troubleshooting |
| Engine will not start or hard to start |
| Fuel filter is clogged - Service the filter |
| No fuel supply from the tank - Open the fuel supply valve |
| Air in fuel system - Air-bleed fuel system |
| Fuel injectors are damaged or dirty - Change fuel injectors |
| Fuel injection pump malfunctioning - Change or repair the pump |
| Low engine compression - Check and change damaged parts |
| Engine stalls during operation |
| Engine is not warmed up to required temperature - Warm up the engine as required |
| Air trapped in fuel system - Bleed air |
| Fuel injection failed - Use correct settings |
| Plugged fuel filter - Replace filter element |
| Dirty or damaged injectors - Test fuel injectors and change if necessary |
| Engine starts but then shuts off |
| Fuel injection pump out of timing - Adjust injection timing |
| Fuel filter is dirty - Clean the filter or install new filter element |
| Fuel injector nozzles are faulty - Test injector nozzles and replace as required |
| Fuel injection pump is faulty - Install a new pump or rebuild |
| Air cleaner is clogged - Clean or replace the air cleaner element |
| Low idle speed setting is not correct - Normalize low idle speed |
| Fuel injection pump malfunctioning - Repair or install a new fuel pump |
| Fuel injector nozzles are faulty - Install new set of properly balanced nozzles |
| Incorrect valve clearance - Need to adjust valve clearance |
| Low coolant level - Top up coolant. Check radiator and hoses for leaks |
| Cooling system is dirty or cooling components are damaged - Change faulty components or flush cooling system |
| Engine oil level low - Fill up the oil to required level |
| Fan belt tension is unadjusted or belt is worn - Change or adjust belt tension correctly |
| Thermostat failure - Check and change if necessary |
| Fuel injectors are clogged or faulty - Check fuel injectors and replace if required |
| Fuel injection pressure is incorrect - Correct the pressure settings |
| Air filter element is dirty - Air filter maintenance required |
| Dirty oil filter - Change or clean engine oil filter element |
| Engine is running overloaded - Reduce the load or operate the tractor in lower gears |
| Incorrect valve clearance - Adjust valve clearance |
| Incorrect low idle speed adjustment - Correct low idle settings |
| Fuel pipes or hoses are dirty - Clean fuel hoses and pipes |
| Engine lost compression: Valves are defective or worn - Install new valves |
| Abnormal engine knocking or noise |
| Fuel injection pump out of timing - Adjust injection timing |
| Fuel injector nozzles are damaged or dirty - Service or replace injector nozzles |
| Engine oil level is low - Fill up the oil to required level |
| Engine is cold - Warm up the engine to required temperature |
| Main bearings or crankshaft wear - Need to install new components |
| Piston rings failure - Piston rings need to be replaced |
| The flywheel to crankshaft bolts are loose - Tighten bolts as required |
| Diesel engine consuming too much oil |
| Oil leaks: Seals or gaskets are defective - New components need to be installed |
| Incorrect oil viscosity - Use oil of proper viscosity |
| Piston rings are stuck or worn - Piston rings replacement required |
| Worn valve stems and valve guides - Install new valves |
| Cylinder liners or pistons are scuffed - Inspect pistons and liners, replace as required |
| Hydrostatic Transmission Troubleshooting |
| Excessive HST transmission noise |
| Speed control linkage is worn or unadjusted - Adjust or replace linkage |
| Excessive transmission load - Reduce the load is required |
| Transmission oil is contaminated or oil level is insufficient - Add oil to proper level or pour fresh transmission oil |
| Defective or worn transmission parts - Check transmission parts for defect or damage and change if necessary |
| Shift linkage is stuck or worn - Clean or replace linkage |
| Worn or seized hydrostatic pump - Change or repair pump |
| Faulty or misadjusted transmission shift control parts - Change or adjust correctly |
| Transmission fluid level is low - Add fluid to the transmission housing |
| Worn or damaged drive sheave - Change sheave |
| Not adjusted or damaged shifter linkage - Change or adjust linkage |
| Worn or unadjusted speed control linkage - Repair or adjust linkage |
| Damaged transmission seals or gaskets - Change seals or gaskets |
| Final drive shaft is leaking - Shaft seals need to be changed |
| Cracked transmission housing - Replace damage housing or transmission assembly |
| Mower Deck Troubleshooting |
| Mower vibrates too much |
| Drive pulley of mower deck is damaged or dirty - Service or replace pulley |
| Drive belt is damaged or loose - Replace belt or adjust belt tension |
| Unbalanced or warped cutting blades - Balance or change as needed |
| Blade mounting bolts are loose - Tighten it fast |
| Discharge chute keeps clogging |
| Ground speed is too fast - Select a slower speed |
| Tall grass - Need to set low cutting height |
| Engine rpm is too low - Adjust throttle to full opening |
| Low cutting height - Change cutting height adjustment |
| Mower drive belt installation is improper - Drive belt must be installed correctly |
| Discharge chute is plugged - Need to clean the mower deck |
| Not sharp blades - Need to sharpen the blades |
| Blades are defective or worn - Change the blades |
| High mowing speed - Select a slower speed |
| Mower deck set to low cutting - Use correct cutting height |
| Grass bag is full - Remove grass from bag |
| Lawn is not level or bumpy - Level the lawn |
| Cutting level is too low - Need to set high cutting height |
| High ground speed - Use a slower speed |
| Deck is not leveled correctly - Level the deck correctly |
| Blades are bent or worn - Replace the blades |
| Incorrect tire pressure - Correct tire pressure |
| Tires are not properly inflated - Check and inflate the tires |
| Mower deck is not leveled properly - Deck needs to be adjusted properly |
| Excessive blade dullness - Need a blade sharpening |
| Bent or worn blades - Install new blades |
| Cutting deck is clogged - Check cutting deck and clean as necessary |
| Damaged mower deck shell - Replace or repair the deck |
| Loose or defective mower spindle - Replace or repair the spindle |
| Electrical Troubleshooting |
| Battery is not charging |
| Electrical cable connections are corroded or loose - Service or tighten connections |
| Defective battery terminal clamps - Terminal clamps need to be replaced |
| Bad cell in battery - Use a new battery |
| Low battery output - Battery is drained, recharge it |
| Battery drains quickly - Service or change the battery |
| Disconnected battery cables or bad terminals - Check cable connections and replace or service terminals |
| Battery is low or faulty - Charge or change the battery |
| Wiring is improperly connected or disconnected - Check wiring and connect properly |
| Battery power is low - Battery needs to be recharged |
| Faulty or incorrectly gapped spark plug - Clean, gap or replace spark plug |
| Starter motor or solenoid is defective - Repair starter or install a new solenoid |
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| Lawn and Garden Tractors Technical Specs |
