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John Deere LA110 Troubleshooting
The
John Deere LA110 is a two-wheel drive lawn tractor from LA100 series. This model
was manufactured between 2007 and 2009.
The John Deere LA110 driveline system components: 30.6 cu.in (501 cc)
4-cycle single cylinder OHV vertical shaft air-cooled gasoline engine
with a rated power of 19.5 hp (14.5 kW) and Tuff Torq K46 belt-driven
hydrostatic transmission with infinite forward and reverse gears.
The engine has a float feed carburetor, pulse type fuel pump,
lubrication system with oil pump and filter, and air cleaner with paper
and foam elements. The maximum travel speed (forward/reverse): 5.5 mph
(8.8 km/h) and 3.2 mph (5 km/h).
The John Deere LA110 was equipped with a manual steering, wet disc
brakes, 15x6.00-6 front tires, and 20x8.00-8 rear tires. The wheelbase
is 49 in (1240 mm). The tractor is compatible with a 42" mid-mount
2-blade mower deck with cutting height of 1.0-4.0" (25-102 mm) and
manual lifting system.
Engine Troubleshooting |
Engine doesn't start or difficult to start |
Fuel tank is empty - Add fuel |
Wrong fuel grade - Use correct fuel grade |
Dirty fuel lines - Inspect and clean |
Faulty spark plug wire connection - Check the spark plug wire connection, repair or replace |
Faulty spark plug - Change spark plug as required |
Fuel filter is dirty - Install new filter |
Defective safety switch - Replace if required |
Carburetor incorrectly set - Set carb correctly |
Poor cylinder compression - Check cylinder block and change worn parts |
Worn or unadjusted choke cable - Replace cable or adjust properly |
Plugged cooling fins - Wash or clean as required |
Ignition system failure - Check ignition and replace faulty components |
Stuck or defective throttle cable - Service or change the cable |
Air filter element is clogged - Change or service air filter |
Fuel pump is faulty or clogged - Test fuel pump and replace if necessary |
Engine starts but stalls suddenly |
Faulty spark plug - Spark plug need to be replaced |
Defective or clogged carburetor - Clean or install new carburetor |
Faulty ignition coil - Ignition coil must be replaced |
Loose or broken valve springs - Change valve springs |
Valves are stuck - Clean the valves |
Engine oil level is low - Fill up the engine oil |
Engine overloaded - Load reducing is recommended |
Air intake grill is clogged - Need to clean or wash |
Carburetor is running lean - Adjust carburetor correctly |
Ignition timing is improper - Ignition timing needs to be adjusted correctly |
Valve setting is wrong - Adjust valves as required |
Stale or low octane fuel - Use correct gasoline |
Engine overload - Load reducing is recommended |
Lack of engine oil - Need to add engine oil |
Low idle speed set incorrectly - Correct the settings |
Fuel pump is faulty or clogged - Clean or change fuel pump |
Worn crankshaft or main bearings - Have bearings or crankshaft replaced |
Valve clearance is improper - Check and adjust |
Worn piston rings or cylinder bore - Replace defective parts |
Improperly adjusted or dirty carburetor - Service or properly adjust carburetor |
Air filter is blocked - Replace or clean air filter |
Clogged or damaged fuel pump - Service or change fuel pump |
Ignition system malfunction - Inspect ignition system and change failed components |
Cylinder head gasket is damaged - Replace the head gasket |
Stuck or burned valves - Clean or replace valves |
Push rod is damaged or worn - Replace push rod |
Cylinder block parts are damaged - Replace defective components |
Engine using too much gasoline |
Choke is not fully open - Check choke cable and adjust it |
Carburetor main jet is incorrectly adjusted - Adjust the carburetor main jet correctly |
Loose or defective spark plug - Tighten or replace spark plug |
Valves are stuck, worn, or burned - Service or change valves |
Worn rings, piston, or sleeve - Replace defective parts as required |
Valve clearance is wrong - Adjustment procedure required |
Engine consuming too much oil |
Seals or gaskets are wearing excessively - To repair leaks, replace worn parts |
Worn valve guides and valve stems - Replace defective valves |
Worn or broken piston rings - Install new piston rings |
Cylinder liner or piston is scored - Check piston and liner, change as required |
Blocked breather hose or pipe - Service or change |
Hydrostatic Transmission Troubleshooting |
HST transmission noise |
Defective or not adjusted speed control pedal linkage - Adjust or install new linkage |
Transmission is under excessive load - Load needs to be reduced |
Oil is dirty or oil level is too low - Add oil to the correct level or fill the transmission with fresh oil |
Transmission parts are worm or defective - Change or repair defective parts |
Stuck or worn shift linkage - Linkage need to be replaced |
Hydrostatic pump is blocked or defective - Change or repair pump |
Damaged or unadjusted transmission shift control components - Adjust properly or change |
Lack of transmission oil supply - Fill the transmission housing to proper oil level |
Defective or worn drive sheave - Install a new sheave |
Shifter linkage is faulty or not adjusted - Replace or adjust linkage |
Speed control linkage is defective or unadjusted - Adjust or install new linkage |
Transmission gaskets or seals are worn - Change seals or gaskets |
Final drive shaft is leaking - Replace shaft seals |
Cracked transmission housing - Install a new transmission housing |
Mower Deck Troubleshooting |
Mower vibrates too much |
Mower deck drive sheave is clogged or worn - Replace or service sheave |
Drive belt is worn or loose - Replace belt or adjust belt tension |
Mower blades are warped or not balanced - Change or balance blades |
Loose blade bolts tightening - Tighten bolts as required |
Discharge chute regular clogging |
Ground speed is too fast - Use a lower speed |
Long grass - Adjust mower to lower cutting height |
Reduced engine speeds - Adjust throttle to full opening |
Cutting height is too low - Need to set high cutting height |
Incorrect mower drive belt installation - Reinstall drive belt properly |
Cutting deck clogging - Mower deck needs to be cleaned |
Not sharp blades - Sharpen the blades |
Worn or defective blades - Blades need to be replaced |
Mowing speed is too high - Use a slower speed |
Cutting height is too low - Adjust mower to higher cutting height |
Full bagger - Bagger must be empty |
Lawn is bumpy or not smooth - Level the lawn |
Cutting level is too low - Use a higher cutting height |
High mowing speed - Select a lower speed |
Improper mower deck level - Deck should be adjusted correctly |
Worn or bent blades - Change the blades |
Incorrect tire pressure - Need to inflate tires |
Incorrect tire pressure - Check and inflate the tires |
Mower deck is not leveled properly - Level the deck correctly |
Blades are excessively dull - Sharpen the blades |
Blades are defective or worn - Blades need to be replaced |
Mower deck is clogged - Inspect and clean cutting deck |
Deck shell is damaged - Rebuild or change mower deck |
Mower spindle is faulty or loose - Spindle needs to be repaired or replaced |
Electrical Troubleshooting |
Battery cannot be charged |
Corroded or loose electrical wire connections - Tighten or service connections |
Electrical terminal connectors are faulty - Terminal connectors should be replaced |
Battery dead cell - Replace the battery |
Battery power is low - Battery needs to be recharged |
Battery drains quickly - Service charging system or change battery |
Battery terminals are corroded or wires are disconnected - Check cables and replace or service terminals |
Battery is low or faulty - Charge or replace the battery |
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly |
Battery voltage is low - Charge the battery |
Spark plug worn or incorrectly gapped - Clean and gap or replace |
Solenoid or starter motor is faulty - Starter/solenoid should be replaced |
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Lawn and Garden Tractors Technical Specs |