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John Deere L110 Troubleshooting
The
John Deere L110 is a two-wheel drive lawn tractor from L100-series. This model
was manufactured between 2003 to 2004. The John Deere L110 driveline includes a
Kohler Command CV491 four-cycle single cylinder air-cooled gasoline engine and
Tuff Torq K46 belt-driven hydrostatic transmission with foot-controlled variable
speed drive.
A 36.4 cubic inches engine has a cylinder bore of 3.6" (90 mm), piston
stroke of 3.03" (77 mm), and rated power of 17.5 hp (13 kW). The maximum
travel speed (forward and reverse): 5.7 mph (9.2 km/h) / 3.4 mph (5.5
km/h).
The John Deere L110 lawn tractor is equipped with a manual steering
system, disc brakes, 15x6.00-6 front tires, and 20x8.00-8 rear tires.
The wheelbase is 49 inches (1240 mm). Compatible attachments for the
tractor: a 42" mid-mount 2-blade mower deck with a cutting height of
1.0-4.0" (25-102 mm), a 46" front blade with manual lift, and 42"
front-mount two-stage snow blower with a clearing height of 21" (530
mm).
| Engine Troubleshooting |
| Engine doesn't start or hard to start |
| Empty gas tank - Fill it up |
| Wrong grade of gasoline - Use correct fuel grade |
| Clogged fuel system - Remove clogging |
| Damaged spark plug wiring connection - Check spark plug wiring connection, repair or change |
| Spark plug is faulty - Replace spark plug |
| Fuel filter is plugged - Replace fuel filter |
| Brake pedal not depressed - Press the brake pedal |
| Carburetor is not working properly - Inspect and adjust |
| Engine has low compression - Check cylinder block and replace defective parts |
| Throttle cable is worn or adjusted improperly - Adjust correctly or change the cable |
| Air intake screen is blocked - Need to wash or clean |
| Defective ignition - Check ignition system and replace faulty parts |
| Choke cable is defective or stuck - Service or change the cable |
| Air filter element is clogged - Replace or service air filter |
| Fuel pump is defective or dirty - Clean or replace fuel pump |
| Engine starts but then shuts off |
| Spark plug is defective - Change spark plug as required |
| Carburetor is faulty or clogged - Clean or install new carburetor |
| Ignition coil is faulty - Install a new ignition coil |
| Bad or damaged valve springs - Replace valve springs |
| Stuck valves - Service the valves |
| Engine oil insufficient - Fill up the engine oil |
| Excessive engine load - Load reducing required |
| Cooling fins are clogged - Clean and wash as required |
| Carburetor fuel mixture is too lean - Adjust carburetor properly |
| Wrong ignition timing - Ignition timing needs to be set properly |
| Valve setting is wrong - Valves needs to be adjusted properly |
| Engine knocking sound or abnormal noise |
| Stale gasoline - Use correct gasoline |
| Engine is under excessive load - Reduce engine load |
| Engine oil level is low - Check and refill engine oil |
| Incorrect low idle setting - Need to adjust idle speed |
| Clogged or damaged fuel pump - Clean or change fuel pump |
| Main bearings or crankshaft wear - Change defective components as required |
| Improper valve clearance - Adjust to proper valve clearance |
| Damaged cylinder bore or piston rings - Change defective components |
| Incorrectly adjusted or clogged carburetor - Adjust the carburetor properly or clean it |
| Plugged air filter - Change or service air filter |
| Fuel pump is dirty or defective - Inspect fuel pump and change as required |
| Ignition system problems - Inspect ignition system and change faulty parts |
| Cylinder head gasket is damaged - Change cylinder head gasket |
| Valves are stuck or burned - Change or service valves |
| Push rod is worn or defective - Change push rod |
| Cylinder block components are faulty - Defective components need to be replaced |
| Engine using too much gasoline |
| Throttle does not open well - Inspect throttle cable and adjust it |
| Carburetor main jet is improperly adjusted - Adjust the carburetor main jet correctly |
| Defective or loose spark plug - Spark plug need to be tightened or replaced |
| Stuck, burned, or worn valves - Clean or change valves |
| Worn sleeve, piston, or rings - Change defective parts |
| Improper valve clearance - Need to adjust valve clearance |
| Gaskets or seals can be faulty - To repair leaks, replace worn parts |
| Valve guides or stems are damaged - Replace the valves |
| Worn or stuck piston rings - Piston rings replacement required |
| Piston or cylinder liner is worn - Inspect liner and piston, change as necessary |
| Breather hose or pipe is plugged - Change or clean |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission noises |
| Bent or unadjusted speed control pedal linkage - Replace or adjust linkage |
| Transmission is under excessive load - Reduce the load is required |
| Contaminated transmission fluid or low fluid level - Fill to required level or change the fluid |
| Transmission components are damaged or worn - Check transmission components and change if necessary |
| Shift linkage is stuck or damaged - Clean or change linkage |
| Blocked or faulty hydrostatic pump - Change or repair pump |
| Worn or misadjusted transmission shift control parts - Adjust correctly or replace |
| Lack of transmission oil supply - Need to add transmission oil |
| Drive pulley is damaged or worn - Replace pulley |
| Shift linkage is damaged or unadjusted - Adjust correctly or change linkage |
| Speed control linkage is defective or unadjusted - Repair or adjust linkage |
| Transmission seals or gaskets are broken - Install new seals or gaskets |
| Final drive shaft leaks - Install new shaft seals |
| Transmission case is cracked - Change broken case |
| Mower Deck Troubleshooting |
| Excessive mower vibration |
| Worn or dirty mower drive pulley - Change or clean pulley |
| Worn or loose drive belt - Adjust belt tension or install a new belt |
| Mower blades are not balanced or warped - Replace or balance blades |
| Blade mounting bolts are loose - Tighten bolts as required |
| Constant clogging of discharge chute |
| High ground speed - Select a lower speed |
| Long grass - Use a lower cutting height |
| Engine rpm is too low - Adjust throttle to full opening |
| Low cutting height - Use a higher cutting height |
| Mower drive belt installation is improper - Install drive belt correctly |
| Grass patches are not cut |
| Cutting deck clogging - Clean out the mower deck |
| Blades are excessively dull - Need a blade sharpening |
| Blades are defective or worn - Blades must be changed |
| Mowing speed is too high - Select a slower speed |
| Low cutting height - Must be set to high cutting height |
| Grass bag is full - Clean grass bag |
| Blades are scalping the grass |
| Lawn is not level or bumpy - Lawn needs to be leveled |
| Mower deck cutting height is set too low - Use correct cutting height |
| Mowing speed is too high - Need to slow down |
| Deck is not leveled correctly - Level the deck correctly |
| Blades are bent or worn - Blades must be changed |
| Tire pressure is too low - Correct tire pressure |
| Tires are not properly inflated - Correct tire pressure |
| Deck level is not correct - Adjust mower deck level properly |
| Not sharp blades - Need to sharpen the blades |
| Worn or defective blades - Change the blades |
| Clogged mower deck - Clean mower deck as required |
| Damaged mower deck shell - Repair or replace the deck |
| Bent or loose mower spindle - Install new spindle or repair it |
| Electrical Troubleshooting |
| Battery is not charging |
| Corroded or loose wire connections - Clean or tighten connections |
| Electrical terminal connectors are faulty - Terminal connectors should be replaced |
| Battery dead cell - Change the battery |
| Battery capacity is low - Battery needs to be recharged |
| Battery is not holding charge - Service charging system or change battery |
| Battery terminals are corroded or wires are disconnected - Check wire connections and change or clean terminals |
| Battery is low or faulty - Change or recharge battery |
| Disconnected or incorrectly connected wires - Inspect battery wires and connect correctly |
| Low battery capacity - Battery needs to be recharged |
| Spark plug faulty or incorrectly gapped - Clean, gap or replace spark plug |
| Damaged starter motor or solenoid - Repair starter or change solenoid |
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| Lawn and Garden Tractors Technical Specs |
