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John Deere LX277 Troubleshooting

The John Deere LX277 is a 2WD lawn tractor from LX200 series. This model was manufactured between 1999 and 2003. The John Deere LX277 driveline components: a 30.2 cu.in (494 cc) Kawasaki FH500V 4-stroke vertical shaft V-Twin cylinder gasoline engine and Tuff Torq K62 belt-driven hydrostatic transmission with infinite forward and reverse gears.

The engine has a cylinder bore of 2.68" (68 mm), piston stroke of 2.68" (68 mm), and rated power of 17 hp (12.6 kW). Max. forward speed - 5.5 mph (8.8 kph), maximum reverse speed - 3 mph (4.8 kph). The tractor is equipped with a manual steering system or all wheel steering (LX277AWS), internal expanding brakes, 16x6.00-6 front tires, and 20x10.00-8 or 20x10.00-10 (LX277AWS) rear tires.

Compatible attachments for the John Deere LX277 tractor: a 42" mid-mount 2-blade mower deck with cutting height of 1.0-4.0" (25-102 mm) and manual lift system, 48" mid-mount 3-blade mower deck with cutting height of 1.0-4.0" (25-102 mm), 13 cut adjustments, and mechanical lift system, 42" front-mount single-stage snowblower with clearing height of 16.3" (412 mm), and 42" front-mount blade.

Engine Troubleshooting
Engine hard starting or not starting
No gasoline in tank - Fill gasoline up
Incorrect fuel grade - Change fuel
Air or water in fuel system - Remove water or air from fuel system
Spark plug wiring connection is defective - Inspect the spark plug wire connection, replace or repair
Damaged spark plug - Change spark plug
Plugged fuel filter - Replace fuel filter
Faulty safety switch - Change damaged switch
Problems with carburetor adjustment - Adjust as required
Low cylinder compression - Check cylinder block and replace worn parts
Incorrectly adjusted or damaged throttle cable - Adjust properly or replace the cable
Engine runs intermittently
Air intake screen is blocked - Need to clean or wash
Ignition system problems - Check ignition system and replace faulty parts
Stuck or faulty choke cable - Change or clean the cable
Air filter is dirty - Service or replace air filter
Dirty or damaged fuel pump - Service or change fuel pump
Engine starts but then stops
Faulty spark plug - Change spark plug
Carburetor is clogged or defective - Service or change carburetor
Damaged ignition coil - Change ignition coil as required
Broken or loose valve springs - New valve springs need to be installed
Stuck valves - Service the valves
Engine overheating
Engine oil insufficient - Checking oil level and add if necessary
Engine is running overloaded - Reduce engine load
Air intake screen is plugged - Clean and wash as required
Too lean carburetor mixture - Make the correct settings
Ignition timing is incorrect - Ignition timing needs to be set properly
Improper valve setting - Valves needs to be set correctly
Abnormal engine noise or knocking
Low octane fuel - Use proper gasoline
Engine overload - Reduce engine load
Low engine oil level - Check and refill engine oil
Incorrectly set low idle speed - Adjustment required
Clogged or damaged fuel pump - Test fuel pump and change if necessary
Crankshaft or main bearings failure - Replace crankshaft or bearings
Valve clearance is not correct - Adjust valve clearance
Worn cylinder bore or piston rings - Change faulty components
Low engine power
Carburetor is dirty or incorrectly adjusted - Adjust the carburetor correctly or clean it
Plugged air filter - Clean or replace air filter
Clogged or damaged fuel pump - Clean or replace fuel pump
Ignition system malfunction - Check ignition system and replace faulty parts
Damaged cylinder-head gasket - Cylinder-head gasket replacement required
Valves are stuck or burned - Service or change valves
Damaged or worn push rod - Change push rod
Worn cylinder block parts - Replace defective components
Excessive fuel consumption
Throttle does not open well - Inspect throttle cable and adjust it
Carburetor main jet is incorrectly adjusted - Adjust the carburetor main jet correctly
Spark plug is loose or defective - Tighten or replace spark plug
Worn, stuck, or burned valves - Change or clean valves
Rings, sleeve, or piston are damaged - Change defective components
Valve clearance is incorrect - Adjust to proper valve clearance
Engine consuming too much oil
Worn seals or gaskets - Install new components
Worn valve stems and valve guides - Install new valves
Damaged or seized piston rings - Have piston rings replaced
Worn piston or cylinder liner - Inspect piston and liner, replace as required
Plugged breather hose or pipe - Service or change

Hydrostatic Transmission Troubleshooting
Excessive hydrostatic transmission noise
Bent or unadjusted speed control pedal linkage - Replace or adjust linkage
Excessive loading - Reduce the load is required
Insufficient oil level or contaminated oil - Change transmission oil or top up to proper level
Damaged or worn components of transmission - Check transmission components and change if necessary
Hard shifting
Shift linkage is rusty or worn - Lubricate or replace the linkage
Hydrostatic pump is seized or faulty - Repair or change pump
Misadjusted or faulty transmission shift control components - Adjust properly or change
Power is too low
Low fluid level - Check and refill the transmission fluid
Worn or damaged drive sheave - Change sheave
Shifter linkage is not adjusted or faulty - Replace or adjust linkage
Speed control pedal linkage is bent or not adjusted - Adjust or repair linkage
Transmission leakage
Transmission seals or gaskets are broken - Seals and gaskets need to be replaced
Final drive shaft is leaking - Shaft seals need to be changed
Cracked transmission housing - Replace housing or transmission assembly

Mower Deck Troubleshooting
Excessive mower vibration
Mower deck drive pulley is worn or dirty - Replace or service pulley
Drive belt is damaged or loose - Adjust belt tension or change the belt
Mower blades are not balanced or warped - Replace or balance blades
Blade mounting bolts are loose - Bolts need to be tightened
Discharge chute is regularly plugged
Fast mowing speed - Use a lower speed
Long grass - Need to set low cutting height
Engine is running at too low speed - Adjust throttle to full opening
Cutting level is too low - Use a higher cutting height
Improper drive belt installation - Install drive belt as required
Patches of grass uncut
Mower deck is clogged - Clean mower deck as required
Blades are not sharp - Blades need to be sharpened
Blades are worn or damaged - Change the blades
High ground speed - Use a slower speed
Cutting height is too low - Change cutting height adjustment
Filled grass bag - Clean grass bag
Blade scalped grass
Lawn is uneven or bumpy - Roll or level the lawn
Mower cuts too low - Raise the cutting height
High ground speed - Use a lower speed
Deck level is not correct - Deck needs to be adjusted properly
Damaged or bent blades - Blades must be changed
Incorrect tire pressure - Need to inflate tires
Mower cuts uneven
Tires are not properly inflated - Need to inflate tires
Deck is not leveled correctly - Adjust mower deck level properly
Blades are excessively dull - Need a blade sharpening
Worn or bent blades - Install new blades
Discharge chute is plugged - Clean out the mower deck
Damaged mower deck shell - Replace or repair the deck
Mower spindle is faulty or loose - Replace or repair the spindle

Electrical Troubleshooting
Battery cannot be charged
Wiring connections are corroded or loose - Tighten or clean connections
Battery terminal clamps are defective - Replace terminal clamps
Battery failing - Change the battery
Starter motor turns slow
Battery capacity is low - Battery needs to be recharged
Battery discharges quickly - Service charging system or install new battery
Corroded battery terminals or disconnected wires - Check cables and clean or change terminals
Starter will not crank
Battery is drained or worn - Recharge or replace battery
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required
Battery voltage is low - Battery needs to be recharged
Spark plug dirty or improperly gapped - Clean, gap or replace spark plug
Starter motor or solenoid failing - Change solenoid or repair starter




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