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John Deere E140 Troubleshooting

JD E140 Engine Problems

Tractor engine does not start

Empty gas tank - Fill it up.
Incorrect fuel grade - Change fuel.
Old gasoline - Drain fuel and fill up fresh.
Fuel system clogged - Repair or replace.
Spark plug wires are damaged - Inspect and change if necessary.
Faulty spark plug - Installing new spark plug.
Dirty fuel filter - Fit new filter.
Brake pedal not depressed - Press the brake pedal.
Incorrect carburetor adjustment - Adjust carburetor idle mixture screw.
Test fuel transfer pump output. Check the Valves and Compression System.

Engine long starting

Faulty spark plug - Test spark and replace as required.
Carburetor not adjusted - Adjust according to instructions.
Dirt in fuel lines - Servicing fuel system.
Throttle cable is not adjusted correctly - Check and adjust.
Stale or incorrect fuel - Drain and add proper fuel.
Electrical connection problems - Checking and replace.
Starter problems - Check the starter and replace defective components.

Engine stalling, surging or running rough

Plugged cooling fins - Clean cooling fins.
Electrical connections damaged - Check and replace damaged connections.
Incorrect ignition settings - Check ignition system and adjust as required.
Throttle cable sticking - Check and repair.
Air cleaner element plugged - Clean air filter.

Engine stops or misses

Faulty spark plug - Test spark plug.
Carburetor is not adjusted correctly - Adjust carburetor as required.
Ignition coil air gap incorrect - Check and adjust ignition coil air gap.

John Deere E140 Engine overheating

Engine overloaded - Reduce the load.
Cooling fins or air inlet plugged - Clean clogged components.
Too little or too much oil - Inspect oil pump for damage or worn.
Poor quality oil - Change engine oil.
Check connecting rod to crankshaft bearing clearance.
Too Fast idle - Adjust carburetor for slower idle speed.

Engine will not idle

Spark plug is loose - Adjust spark plug gap.
Spark plug malfunction - Test spark and change as required.

Engine knocking

Stale gasoline - Change fuel.
Engine overloaded - Reduce loads.
Oil level low - Add engine oil.
Engine runs at low revs - Adjust the speed.
piston rings or cylinder bore damaged - Replace defective components.
Inspect for engine overheats from clogged cooling fins.
Inspect and adjusting crankshaft end play.
Check for loose or worn connecting rods.

Engine backfires

Checking spark plug.
Adjust or replace choke.
Check and adjust carburetor.
Checking and adjusting ignition coil air gap.
Inspect for sticking valves.
Check valve clearance, adjust if required.
Inspect flywheel key.

Engine lacks power

Engine overheating - Clean or replace air filter.
Excess engine oil - Remove excess oil.
Faulty fuel pump - Repair or replace fuel pump.
Governor problems - Repair or replace governor.
Inspect and repair carburetor.
Check engine compression.

Excessive fuel consumption

Insufficient choke opening - Adjust choke cable.
Carburetor problems - Adjust carburetor.

Emits black smoke

Air cleaner element clogged - Clean or change filter.
Throttle not fully engaged - Check and repair throttle.
Check oil fill dipstick O-ring seal or cracked cap.

John Deere E140 Electrical System Troubleshooting

Starter does not function

Main fuse defective - Installing new fuse.
Terminals are severely corroded and heat up - Clean connections.
Low-voltage battery - Need to charge the battery.
Ignition switch is damaged - Change switch.
Damaged starter - Change the starter.
Wiring damage - Replace electric wires.

Battery does not charge

One or more battery cells dead - Replace the battery.
Poor contact between cable and battery pole - Clean or change cable.

Lighting does not function

Light connector defective.
lamp does not work.
Short-circuit in cable.

JD E140 Machine Problems

The machine vibrates

Equipment driven belt worn out - Belt replacement required.
Traction drive belt worn - Inspect and replace traction belt.
Drive pulley is dirty - Replace if necessary.
Blades bent or out of balance - Change defective blades.

The engine is running but tractor is not moving

Parking brake locked - Release the park brake.
Bypass valve pulled out - Disengage the bypass valve lever.
Blades loose - Inspect and fasten securely if necessary.
Incorrect blade balancing - Inspect the blades and balance if necessary.
Too little transmission oil - Fill transmission with oil.

John Deere E140 Lawn Mower Troubleshooting

Discharge Chute Clogged

Ground speed too fast - Need to reduce speed.
High grass - try operating a short cutting height.
Wet grass - Don't mow while wet grass.
Engine speed reduced - Increase engine rpm.
Lack of air flow - Check engine speed.
Lack of cutting height - Change cutting height.
Improper belt installation - Install the belt correctly.

Uncut grass during operation

Debris in cutting deck - Deck cleaning required.
Excessive blade wear - Check and replace the blade.
Deck level is too low - Level mower deck.
Grass bag too full - Empty the grass bag.
Speed is very high - Do not use high speed.

Belt Slipping

Sheave is dirty - Need to clean the pulley.
Belt is worn out - Inspect and replace worn belt.
Low belt tension - Install the belt correctly.

Excessive mower vibration

Debris on mower deck or in sheaves - Clean mower deck and sheave from debris.
Damaged sheaves or belt - Replace worn components.
Misaligned belt or pulley - Check and centering.
Blades are not balanced correctly - Blade balance required.

Blades scalping grass

Cutting height incorrect - Raise cutting height.
Mower wheel height incorrect - Check the wheel heights.
Tire pressure is uneven - Tire pressure required.
Faster mower blade speeds - Correct blades speed.
Bent mower blades - Replace blades.

Uneven Cut

Mower deck not leveled properly - Checking and adjust deck height.
Tires inflated insufficient - Inflate tires as required.
Rollers not positioned properly - Adjust wheel heights correctly.
Traveling too fast - Choose recommended speed.
Mower blades dull - Check and replace the 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