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John Deere LX280 Troubleshooting

The John Deere LX280 lawn tractor was manufactured from 2004 to 2005. The John Deere LX280 powerline system components: Kawasaki FH580V 4-stroke vertical V-twin cylinder air cooled gasoline engine and Tuff Torq K62 belt-driven hydrostatic transmission.

The 35.7 cubic inches (585 cc) engine has a cylinder bore of 2.92" (74 mm), piston stroke of 2.69" (68 mm), and rated power of 18 hp (13.4 kW). Max. forward speed - 6 mph (9.6 kph), maximum reverse speed - 3.2 mph (5.1 kph).

The John Deere LX280 was equipped with a two wheel steering or all wheel steering (LX280AWS), internal wet disc brakes, 16x6.50-8 front tires, and 22x11.00-10 rear tires. The wheelbase is 49" (1240 mm). The tractor is compatible with 42" mid-mount 2-blade and 48" mid-mount 3-blade mower decks. Both decks have a cutting height of 1.5-4" (38-102 mm), 13 cut positions, and mechanical lift system.

Engine Troubleshooting
Engine doesn't start or starts hard
No gasoline in tank - Fill gasoline up
Improper fuel grade - Use correct fuel grade
Air in fuel system - Bleed fuel system
Spark plug wire is loose or disconnected - Check spark plug wiring connection, repair or change
Spark plug is damaged - Install new spark plug
Fuel filter is clogged - Fuel filter needs changing
Faulty safety switch - Change damaged switch
Carburetor problems - Carburetor diagnostics required
Engine has bad compression - Check cylinder block and change wear parts
Throttle cable is worn or adjusted improperly - Change cable or adjust correctly
Engine runs unevenly
Air intake grill is clogged - Need to wash or clean
Defective ignition system - Inspect ignition system and change failed components
Choke cable is faulty or stuck - Change or clean the cable
Air filter is dirty - Clean or replace air filter
Fuel pump is dirty or defective - Clean or install new fuel pump
Engine starts but stalls immediately
Damaged spark plug - Replace spark plug
Dirty or faulty carburetor - Clean or change carburetor
Damaged ignition coil - Change ignition coil as required
Valve springs are loose or broken - Valve springs need to be changed
Valves are stuck - Valves need to be cleaned
Engine overheating
Engine oil level low - Check oil level and add oil as required
Engine overload - Load reducing is recommended
Air intake screen is blocked - Need to wash or clean
Carburetor fuel mixture is too lean - Set the carburetor properly
Ignition timing is wrong - Set the ignition timing properly
Incorrect valve setting - Adjust valves correctly
Engine knocking or noise
Low octane fuel - Change gasoline
Excessive engine load - Reduce the load
Lack of engine oil - Fill the crankcase with engine oil
Wrong adjustment of low idle speed - Correct idle adjustment
Fuel pump is clogged or faulty - Clean or install new fuel pump
Crankshaft or main bearings are worn out - Repair or replace defective parts
Valve clearance is incorrect - Check and adjust
Piston rings or cylinder bore are damaged - Change faulty components
Lack of engine power
Carburetor is dirty or incorrectly adjusted - Carburetor needs to be adjusted correctly or cleaned
Air filter is blocked - Service or replace air filter
Clogged or defective fuel pump - Check fuel pump and replace if necessary
Defective ignition system - Check ignition and replace faulty components
Cylinder head gasket is blown - Install new cylinder head gasket
Burned or stuck valves - Replace or clean valves
Worn or bent push rod - Install a new push rod
Damaged cylinder block components - Defective parts need to be replaced
Engine uses too much fuel
Choke is not fully open - Check choke cable and adjust it
Incorrect carburetor main jet adjustment - Adjust main jet as required
Defective or loose spark plug - Tighten or change the spark plug
Stuck, worn, or burned valves - Clean or change valves
Sleeve, rings, or piston are damaged - Change defective parts
Valve clearance is improper - Adjust valve clearance
Excessive oil consumption
Seals or gaskets are wearing excessively - Replace worn parts to avoid leaks
Valve stems or guides are damaged - Need to replace the valves
Damaged or seized piston rings - Replace piston rings
Damaged piston or cylinder liner - Check piston and liner, replace as required
Blocked breather hose or pipe - Clean or change

Hydrostatic Transmission Troubleshooting
HST transmission noises
Bent or unadjusted speed control pedal linkage - Replace or adjust linkage
Transmission overloaded - Reduce transmission load
Insufficient oil level or contaminated oil - Add oil to proper level or pour fresh transmission oil
Defective or worn transmission parts - After disassembling and inspection, change defective components
Hard to shift
Shift linkage is loose or broken - Service or change the linkage
Worn or seized hydrostatic pump - Replace or repair pump
Worn or misadjusted transmission shift control parts - Adjust properly or change
Loss of power
Transmission oil level is low - Check and refill the transmission oil
Faulty or worn drive sheave - Change sheave
Shift linkage is unadjusted or damaged - Adjust correctly or replace linkage
Speed control pedal linkage is damaged or out of adjustment - Replace or adjust linkage
Transmission leaks
Broken transmission gaskets or seals - Install new gaskets or seals
Final drive shaft leaks - Change shaft seals
Transmission housing is cracked - Replace damage housing or transmission assembly

Mower Deck Troubleshooting
Mower vibration is excessive
Drive sheave of mower deck is dirty or worn - Service or replace sheave
Loose or defective drive belt - Adjust belt tension or install a new belt
Unbalanced or warped cutting blades - Balance or change as needed
Loose blade bolts tightening - Bolts should be tightened
Discharge chute is constantly plugged
Mowing speed is too high - Use a slower speed
Long grass - Need to set low cutting height
Engine rpm is too low - Adjust choke to full opening
Mower cuts too low - Need to set high cutting height
Drive belt installation is not correct - Reinstall drive belt properly
Grass patches are not cut
Clogged mower deck - Need to clean the mower deck
Blades are not sharp - Sharpen the blades
Worn or damaged blades - Blades must be changed
High mowing speed - Need to slow down
Cutting level is too low - Use a higher cutting height
Filled bagger - Bagger must be empty
Blades are scalping the grass
Bumpy or unleveled lawn - Lawn needs to be leveled
Low cutting height - Use a higher cutting height
High ground speed - Need to slow down
Improperly leveled mower deck - Deck needs to be adjusted properly
Blades are bent or worn - Change the blades
Tires are not properly inflated - Inflate tires correctly
Uneven cut
Low tire inflation - Need to inflate tires
Deck level is not correct - Adjust mower deck level properly
Blades are not sharp - Need to sharpen the blades
Bent or worn blades - Blades must be changed
Deck is plugged with grass - Clean mower deck as required
Deck housing is broken - Replace or rebuild mower deck
Mower spindle is bent or loose - Install new spindle or repair it

Electrical Troubleshooting
Battery will not charge
Electrical cable connections are loose or corroded - Tighten or clean connections
Electrical terminal connectors are faulty - Terminal connectors need to be changed
Faulty cell in battery - Use a new battery
Starter motor turns slow
Battery power is low - Battery needs to be recharged
Battery does not hold charge - Service battery or change it
Faulty battery terminals or disconnected cables - Connect cables properly or replace terminals
Starter is not cranking
Battery is low or faulty - Charge or change the battery
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly
Battery power is low - Battery is drained, recharge it
Spark plug worn or incorrectly gapped - Clean, gap or change spark plug
Starter motor or solenoid is defective - Repair starter or replace solenoid




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