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John Deere X135R Tractor Troubleshooting

John Deere X135R Engine Problems

Tractor engine will not start

No gasoline in tank - Fill it up.
Improper fuel grade - Change fuel.
Old fuel - Drain gasoline and change with fresh.
Dirty fuel system - Check and clean.
Defective spark plug wires - Replace if necessary.
Spark plug not working - Spark plugs need to be replaced.
Plugged fuel filter - Fuel filter needs changing.
Faulty safety switch - Change damaged switch.
Carburetor problems - Carburetor diagnostics required.
Inspect and adjust choke. Test crankcase vacuum.

Engine long starting

Spark plug wear - Test spark and replace as required.
Carburetor is dirty - Wash, clean and adjust.
Fuel lines are clogged - Servicing fuel system.
Throttle cable damaged - Change the cable.
Stale or incorrect gasoline - Pour quality fuel.
Electrical wires are damaged - Check and replace wires if necessary.
Failing starter - Check starter, repair or replace.

Rough running engine

Clogged cooling fins - Remove dirt from cooling fins.
Electrical contacts are damaged - Check and replace damaged connections.
Ignition setting defective - Check spark plug and ignition.
Throttle cable sticking - Check and repair.
Air cleaner blocked - Clean air filter.

Engine runs but misses

Spark plug failed - Check spark plug wire for wet or deteriorated condition.
Carburetor problems - Test and repair.
Ignition coil air gap incorrect - Check and adjust ignition coil air gap.

JD X135R Engine overheating

Engine overloaded - Reduce loads.
Air intake screen plugged - Clean dirty components.
Too much or too little oil - Checking oil level and oil pressure.
Low quality engine oil - Change engine oil.
Check internal bearing clearance.
Too Fast idle - Adjust carburetor for slower idle speed.

Engine will not idle

Poor spark plug contact - Tighten the spark plug correctly.
Spark plug worn out - Inspect the spark, replace if necessary.

Engine knocking

Low octane gasoline - Use proper fuel.
Engine overloaded - Reduce loads.
Low oil level - Add to required level.
Engine speed too low - Adjust carburetor.
Piston rings and cylinder bore are wear - Check cylinder bore and rings for wear.
Inspect for engine overheats from clogged cooling fins.
Check and adjust crankshaft end play.
Check for loose or worn connecting rods.

John Deere X135R Engine back-fire

Check spark plug for fouled.
Check and adjust the choke.
Check and adjust carburetor.
Inspect and adjust ignition coil air gap.
Check for sticking valves.
Checking and adjusting valve clearance.
Inspect flywheel key.

Engine does not develop full power

Engine overheats - Air cleaner element plugged.
Overfilling engine oil - Drain excess oil.
Fuel pump is damage - Test fuel pump output.
Faulty governor - Inspect and adjust governor.
Check carburetor float adjustment.
Checking engine compression.

Engine using too much gasoline

Choke didn't open fully - Check throttle cable.
Carburetor problems - Adjust or repair carburetor.

Emits black smoke

Air cleaner is dirty or oiled - Inspect and clean.
Choke partially engaged - Check and repair throttle.
Check and adjust carburetor float level.

JD X135R Electrical Troubleshooting

Starter motor will not turn engine

Main fuse malfunction - Installing new fuse.
Terminals are severely corroded and heat up - Clean terminals.
Low-voltage battery - Need to charge the battery.
Ignition lock is damaged - Change switch.
Starter fault - Install new starter.
Wiring damage - Change wiring.

Battery will not charge

Battery cells defective - Change the battery.
Poor contact between cable and battery pole - Inspect and Clean.

Lights do not work

Light connector defective.
Check light bulbs.
Short circuit in electrical wires.

John Deere X135R Machine Problems

Tractor vibrates too much or rattles excessively

Attachment drive belts worn or damaged - Inspect and replace damaged belt.
Traction drive belt damage - Installing new driven belt.
Dirt on drive sheaves - Clean or replace.
Mower blades malfunction - Change defective blades.

Machine does not move while engine is running

Parking brake holds the tractor - Release the park brake.
Bypass lever is on - Set bypass valve to the off position.
Blades loose - Fasten the blades securely.
Improper blade balance - Inspect the blades and balance if necessary.
Too much or too little oil - Add transmission oil.

JD X135R Mower Deck Problems

Discharge Chute Plugged

Travel speed too fast - Choose recommended speed.
Grass has grown too long - try operating a short cutting height.
Wet grass - Don't mow while wet grass.
Low engine speeds - Open choke wide.
Airflow restriction - Check engine rpm.
Cutting too low - Adjust to higher cutting.
Incorrect belt installation - install belt as required.

Uncut grass during operation

Mower's cutting deck is clogged - Mower deck needs cleaning.
Defective blade - Sharpen the blade or install a new one.
Mower deck is low from ground - Deck leveling required.
Grass bag too full - Clean grass bag.
Speed is very fast - Choose recommended speed.

Slipping drive belt

Debris in pulleys - Clean or replace.
Belt is damaged - Check and change damaged belt.
Low belt tension - Correct belt tension.

John Deere X135R Mower vibrates

Debris on mower deck or in sheaves - Remove clogging from sheaves or mower deck.
Belt or pulley faulty - Change worn components.
Misaligned belt or pulley - Check and adjust.
The blades are unbalanced - Blade balance required.

Blades scalping grass

Cutting height too low - Raise cutting height.
Mower height wheels not adjusted - Adjust wheel heights correctly.
Tire pressure is uneven - Increase tire pressure.
Blades speed too fast - Balance mower speed.
Bent mower blades - Replace blades.

Uneven Cut

Mower deck low - Level mower deck.
Tire pressure uneven - Check and inflate the tires.
Incorrect wheel height - Check the rollers heights.
Ground speed too fast - Need to reduce speed.
Mower blades dull - 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