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John Deere D100 Troubleshooting
The
John Deere D100 is a two-wheel drive lawn tractor. This model was manufactured
from 2011 to 2012.
The components of John Deere D100 driveline system: Briggs and Stratton
Intek 31G777 Intek 4-cycle 1-cylinder OHV vertical shaft air-cooled
gasoline engine with a rated power of 17.5 Hp (13 kW), and Dana 4360
belt-driven gear transmission with 5
forward and 1 reverse gears. The engine has a float type carburetor,
lubrication system with oil pump and filter, and electronic ignition
system.
The maximum forward speed - 5 mph (8 km/h), maximum reverse speed - 2.3
mph (3.7 km/h). The tractor is fitted with 15x6.00-6 front tires and
20x8.00-8 rear tires. The wheelbase is 49" (1240 mm). The John Deere
D100 can be equipped with the following attachments: a 42" mid-mount
2-blade mower deck with a 13 cut positions and manual spring-assist
lifting, 46" front blade, and 43.25" front-mount dual-stage snow blower
with mechanical lift.
| Engine Troubleshooting |
| Engine hard to start or doesn't start |
| No gasoline in tank - Add gasoline |
| Low-quality gasoline - Use correct fuel grade |
| Air in fuel system - Bleed fuel system |
| Spark plug wire is disconnected or loose - Check spark plug wiring connection, repair or change |
| Defective spark plug - Install new spark plug |
| Dirty fuel filter - Install new filter |
| Brake pedal not depressed - Press the brake pedal |
| Problems with carburetor adjustment - Adjust as required |
| Poor cylinder compression - Check cylinder block and change worn parts |
| Unadjusted or worn throttle cable - Replace cable or adjust properly |
| Cooling fins are plugged - Need to wash or clean |
| Defective ignition system - Inspect ignition system and change failed components |
| Defective or stuck choke cable - Change or clean the cable |
| Plugged air filter - Change or clean air filter |
| Clogged or defective fuel pump - Check fuel pump and change if required |
| Engine starts but stalls suddenly |
| Spark plug is damaged - Replace spark plug |
| Defective or dirty carburetor - Replace or service carburetor |
| Ignition coil is defective - Install a new ignition coil |
| Valve springs are loose or broken - Install new valve springs |
| Stuck valves - Valves must be cleaned |
| Not enough engine oil - Add oil to the engine crankcase |
| Engine overloaded - Reduce engine load |
| Plugged cooling fins - Need to clean or wash |
| Carburetor is running lean - Set the carburetor properly |
| Wrong ignition timing - Adjust ignition timing as required |
| Valve setting is improper - Valves needs to be adjusted properly |
| Stale gasoline - Use proper fuel |
| Engine is running overloaded - Load reducing is recommended |
| Insufficient engine oil - Fill up the oil to required level |
| Wrong adjustment of low idle speed - Correct the settings |
| Clogged or defective fuel pump - Clean or replace fuel pump |
| Crankshaft or main bearings are worn out - Crankshaft or bearings need to be replaced |
| Excessive valve clearance - Need to adjust valve clearance |
| Damaged cylinder bore or piston rings - Change defective parts |
| Engine power is insufficient |
| Dirty or improperly adjusted carburetor - Adjust carburetor properly or service it |
| Air filter element is plugged - Service or change air filter |
| Dirty or faulty fuel pump - Service or change fuel pump |
| Ignition system malfunction - Inspect ignition system and change failed components |
| Worn cylinder head gasket - Replace the head gasket |
| Valves are burned or stuck - Change or clean valves |
| Worn or bent push rod - Install a new push rod |
| Faulty cylinder block parts - Replace defective components |
| Throttle opening is not full - Adjust or change throttle cable |
| Carburetor main jet adjustment is incorrect - Adjust the carburetor main jet correctly |
| Loose or defective spark plug - Spark plug need to be tightened or replaced |
| Valves are stuck, burned, or worn - Replace or clean valves |
| Rings, sleeve, or piston are damaged - Replace defective parts as required |
| Valve clearance is wrong - Adjustment procedure required |
| Excessive engine oil consumption |
| Worn seals or gaskets - New components need to be installed |
| Valve guides and stems are worn - Change the valves |
| Piston rings are stuck or broken - Change the piston rings as required |
| Piston or cylinder liner is damaged - Inspect piston and liner, replace as required |
| Clogged breather pipe or hose - Change or clean |
| Transmission Troubleshooting |
| Hard shifting |
| Worn or rusty gear shift linkage - Install new shift linkage |
| Damaged or worn shift forks - Change the shift forks |
| Defective gearshift mechanism - Replace defective components |
| Low transmission fluid level - Add fluid to the transmission housing |
| Transmission oil is contaminated - Fill up with fresh transmission oil |
| Bearings are damaged or gears are worn - Replace bearings or gears |
| Transmission jumping out of gear |
| Incorrectly installed or bent shift lever - Reinstall the lever properly or change it |
| Damaged or worn gears - Change defective gears |
| Faulty shift rods or shift forks - Replace defective forks or rods |
| Drive shaft/belt is damaged or improperly adjusted - Adjust belt/shaft or install a new one |
| Defective brake/clutch or incorrect brake/clutch adjustment - Adjust clutch/brake or install a new one |
| Drive pulley is damaged or worn - Install a new pulley |
| Mower Deck Troubleshooting |
| Mower vibrates excessively |
| Mower deck drive pulley is worn or dirty - Change or clean pulley |
| Drive belt is worn or loose - Replace belt or adjust belt tension |
| Warped or not balanced mower blades - Balance or replace blades |
| Loose blade bolts tightening - Bolts should be tightened |
| Discharge chute regular clogging |
| Fast mowing speed - Operate at slower speed |
| Grass is too long - Use a lower cutting height |
| Reduced engine speeds - Adjust throttle to full opening |
| Cutting height is too low - Need to set high cutting height |
| Mower deck drive belt installed incorrectly - Install drive belt as required |
| Grass patches are not cut |
| Deck clogged with grass clippings - Check cutting deck and clean as necessary |
| Blades are too dull - Need to sharpen the blades |
| Worn or damaged blades - Blades must be changed |
| Fast ground speed - Need to slow down |
| Cutting height is too low - Must be set to high cutting height |
| Grass bag is overfilled - Grass bag must be empty |
| Blades are scalping the grass |
| Lawn is not level or bumpy - Roll or level the lawn |
| Cutting level is too low - Raise the cutting height |
| High mowing speed - Select a lower speed |
| Mower deck is not leveled properly - Adjust the level of mower deck correctly |
| Blades are worn or bent - Blades must be changed |
| Tires are not properly inflated - Inflate tires as required |
| Mower deck to cut unevenly |
| Tires are not correctly inflated - Inflate tires as required |
| Improper mower deck level - Adjust the level of mower deck correctly |
| Blades are excessively dull - Need to sharpen the blades |
| Worn or defective blades - Blades must be changed |
| Cutting deck clogging - Need to clean the mower deck |
| Broken mower deck housing - Repair or change the deck |
| Mower spindle is bent or loose - Replace or repair the spindle |
| Electrical Troubleshooting |
| Battery will not charge |
| Electrical cable connections are loose or corroded - Service or tighten cable connections |
| Defective battery terminal connectors - Change terminal connectors |
| Dead cell in battery - Battery change required |
| Low battery power - Recharge the battery |
| Battery won’t hold charge - Service or replace the battery |
| Disconnected wiring or bad battery terminals - Check cables and clean or change terminals |
| Battery is discharged or defective - Recharge or change battery |
| Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required |
| Low battery output voltage - Low battery charging, charge as required |
| Spark plug faulty or incorrectly gapped - Replace or clean and gap |
| Defective solenoid or starter motor - Starter/solenoid needs to be replaced |
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| Lawn and Garden Tractors Technical Specs |
