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John Deere GT262 Tractor Troubleshooting

John Deere GT262 Engine Problems

Engine won't start

No fuel in fuel tank - Add fuel.
Improper fuel grade - Use correct fuel grade.
Stale gas - Drain fuel and add fresh.
Fuel system clogged - Repair or replace.
Defective spark plug wires - Check the spark plug wires.
Spark plug damaged - Spark plugs need to be replaced.
Fuel filter is clogged - Fit new filter.
Brake pedal not pushed down - Push the brake pedal down.
Incorrect carburetor adjustment - Adjust carburetor idle mixture screw.
Inspect and adjust throttle cable. Compression problems.

Engine hard to start

Spark plug wear - Inspect the spark, change if necessary.
Carburetor incorrectly set - Set carb correctly.
Fuel pipes are clogged - Remove clogging from fuel pipes.
Choke cable not adjusted properly - Checking and adjusting.
Stale or improper fuel - Drain and add proper gasoline.
Electrical connection problems - Checking and replace wiring if necessary.
Starter fault - Test starter and repair if necessary.

JD GT262 Engine runs roughly

Cooling fins are clogged - Clean cooling fins.
Electrical contacts are damaged - Check and restore damaged connections.
Ignition adjust incorrect - Inspect spark plug and ignition system.
Throttle cable sticks - Check and replace.
Air cleaner dirty - Clean or replace the air filter.

Engine misses

Faulty spark plug - Change spark plug.
Carburetor problems - Test and repair.
Ignition coil defective - Test ignition coil and replace if necessary.

Engine overheating

Excessive engine load - Reduce loads.
Cooling fins or air inlet plugged - Clean clogged components.
Engine oil high or too low - Inspect oil level.
Incorrect engine oil viscosity - Change engine oil.
Check internal bearing clearance.
Too Fast idle - Adjust carburetor for slower idle speed.

Engine does not idle

Poor spark plug contact - Check tightness of spark plug.
Spark plug failed - Check the spark and change defective spark.

Engine knocking

Stale gasoline - Change fuel.
Engine overload - Reduce the load.
Lack of engine oil - Add engine oil.
Low engine speed - Adjust the speed.
piston rings or cylinder bore damaged - Replace defective components.
Check for engine overheating from plugged cooling fins.
Check and adjust crankshaft end play.
Check for worn crankshaft or camshaft bearings.

John Deere GT262 Engine backfires

Checking spark plug.
Check and adjust the choke.
Test carburetor, adjust if necessary.
Check and adjust ignition coil air gap.
Check inlet and outlet valves.
Check valve clearance, adjust if required.
Check flywheel key.

Engine loses power

Engine temperature too high - Check air cleaner for plugged condition.
High engine oil - Excess oil needs to be drained.
Fuel pump is damage - Testing fuel pump output.
Faulty governor - Inspect and adjust governor.
Check and overhaul carburetor.
Checking engine compression.

Engine getting too much fuel

Insufficient throttle opening - Check choke cable.
Carburetor malfunction - Check and adjust carburetor.

Emits black smoke

Air cleaner element plugged - Inspect and clean.
Throttle not fully engaged - Inspect and adjust throttle.
Check oil fill dipstick O-ring seal or cracked cap.

JD GT262 Electrical System Troubleshooting

Starter doesn't work or will not turn engine

Blown fuse - Check and replace.
Battery contacts are corroded - Inspect and clean terminals.
Battery is discharged - Battery charging required.
Ignition switch is damaged - Replace switch.
Faulty starter - Change the starter.
Wiring disconnected - Change wiring.

Battery will not charge

Faulty cell in battery - Replace the battery.
Poor contact between cable and battery pole - Clean or change cable.

No Lights work

Connection/disconnection level in wrong position.
Replace light bulbs.
Inspect electrical wires for short- circuit.

John Deere GT262 Machine Problems

Excessive tractor vibration

Implements driven belt damaged or worn - Check and replace worn belt.
Traction drive belt damage - Installing new driven belt.
Drive sheaves malfunction - Clean the sheaves.
Mower blades problem - Replace damaged blades.

Machine does not move while engine is running

Parking brake holds the tractor - Disengage the park brake.
Bypass valve lever activated - Disengage the bypass valve lever.
Mower blade could be loose - Checking blades for loose bolts.
Poor balancing after sharpening - Balance the mower blades correctly.
Transmission oil too low - Fill transmission with oil.

John Deere GT262 Mower Deck Problems

Discharge Chute Clogged

Ground speed too fast - Operate the mower at low speed.
High grass - try operating a short cutting height.
Wet grass - Don't mow while wet grass.
Low engine speeds - Increase engine rpm.
Airflow restriction - Set higher revs.
Cutting too low - Change cutting height.
Incorrect belt installation - Fit belt correctly.

Streaking of uncut grass

Debris in mower deck - Inspect and clean cutting deck.
Defective blade - Inspect and fit new blade if required.
Mower deck is low from ground - Deck leveling required.
Grass bag too full - Clean bagger.
Travel speed too fast - Operate the mower at low speed.

Slipping drive belt

Sheave is dirty - Clean or replace.
Drive belt wear - Check and change damaged belt.
Belt tension problems - Correct belt tension.

Excessive mower vibration

Debris in mower deck or in pulleys - Remove clogging from mower deck or sheaves.
Mower belt or sheave damaged - Change damaged parts.
Belt or pulleys out of centering - Inspect and adjust.
The blades are unbalanced - Blades need balancing.

Blade strips grass

Cutting height improper - Raise cutting height.
Mower rollers height wrong - Adjust wheel heights correctly.
Tires inflated insufficient - Increase tire pressure.
Higher blade speed - Balance mower speed.
Blades are bent - Remove bent blade and install new one.

Uneven Cut

Mower deck not leveled properly - Adjust and level the deck height.
Low tire pressure - Check and inflate the tires.
Incorrect rollers height - Adjust wheel heights correctly.
Travel speed too high - Choose recommended speed.
Blades worn - Installing new blade.

JOHN DEERE TRACTORS ATTACHMENTS
420	430	455	790	990
X300	X320	X330	X350	X475
X485	X500	X540	X570	X590
X700	X720	X738	X758	1023E
2025R	2210	2520	3025E	3032E
3038E	3038R	3039R	3046R	3203
3320	3520	4052R	4066R	4100
4105	4115	4200	4310	4320
4400	4410	4520	4600	4720

JD TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R