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John Deere L110 Troubleshooting

John Deere L110 Engine Problems

Tractor engine fails to start

No gasoline in tank - Add fuel.
Low-quality gasoline - Use correct gasoline grade.
Stale gas - Drain fuel and fill up fresh.
Air or water in fuel system - Remove water or air from fuel system.
Spark plug defective - Check wires connection.
Spark plug damaged - Installing new spark plug.
Fuel filter is plugged - Fuel filter needs to be replaced.
Faulty safety switch - Change damaged switch.
Carburetor problems - Carburetor diagnostics required.
Check and adjust governor linkage. Check and adjust valve clearance.

Engine is difficult to start

Spark plug malfunction - Inspect the spark, replace if necessary.
Problems with carburetor adjustment - Adjust as required.
Fuel pipes are clogged - Clean fuel system components.
Choke cable damaged - Replacement required.
Old or incorrect fuel - Fill in proper fuel.
Electrical wiring worn out - Checking and replace.
Starter problems - Check starter, repair or replace.

Engine runs unevenly

Cooling fins are clogged - Remove dirt from cooling fins.
Loose electrical connections - Check and restore defective connections.
Ignition system problems - Check spark plug and ignition.
Throttle cable sticks - Check and replace.
Air filter element clogged - Change air cleaner.

Engine runs but misses

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

Engine overheating

Engine overloaded - Reduce the load.
Air inlet or cooling fins blocked - Clean clogged components.
Too little or too much oil - Inspect oil level.
Improper engine oil viscosity - Change oil.
Check connecting rod to crankshaft bearing clearance.
Idle speed problems - Adjusting fast idle speed.

Engine does not idle

Poor spark plug contact - Check tightness of spark plug.
Spark plug wear - Test spark and change as required.

JD L110 Engine knocking

Low octane fuel - Change fuel.
Engine overloaded - Reduce the load.
Low oil level - add oil as required.
Engine runs at low revs - Adjust carburetor as needed.
Cylinder bore or piston rings are damaged - Check cylinder bore and rings for wear.
Inspect for engine overheats from clogged cooling fins.
Check and adjust valve clearance.
Check for loose or worn connecting rods.

Engine back-fire

Check spark plug for fouled.
Adjust or change the throttle.
Test carburetor, adjust if necessary.
Inspect and adjust ignition coil air gap.
Check inlet and outlet valves.
Check valve clearance, adjust if required.
Inspect flywheel key.

Loss of power

Engine overheating - Check air cleaner for plugged condition.
Too much oil in engine - Excess oil must be drained.
Fuel pump broken - Check fuel pump and replace if required.
Governor is damage - Repair or replace governor.
Inspect and repair carburetor.
Checking engine compression.

Engine gets too much gas

Insufficient choke opening - Check choke cable.
Carburetor is not adjusted - Check carburetor float adjustment.

Black smoke is emitted during operation

Air filter element plugged - Check and clean.
Throttle is partially engaged - Inspecting and adjusting choke.
Check for correct main jet for elevation.

John Deere L110 Electrical System Troubleshooting

Starter doesn't work or will not turn engine

Blown fuse - Installing new fuse.
Poor terminal connection - Clean contacts.
Low charging voltage - Battery charging required.
Ignition switch problems - Replace the lock.
Damaged starter - Repair or replace.
Wiring damage - Change wiring.

Battery does not charge

One or more battery cells dead - Replace the battery.
Battery terminals and cables are dirty - Check and Clean.

Lights do not work

Light connector defective.
Replace the lamps.
Inspect electrical wires for short- circuit.

JD L110 Machine Problems

The machine vibrates

Equipment drive belts worn out - Inspect and replace damaged belt.
Worn traction drive belt - Check and change worn belt.
Drive sheaves are dirty - Fit new pulley.
Mower blades malfunction - Replace damaged blades.

The engine is running but tractor is not moving

parking brake blocks the tractor - Disengage the park brake.
Bypass lever is on - Disengage the bypass valve lever.
Blades loose - Checking blades for loose bolts.
Incorrect blade balance - Balance the mower blades correctly.
Low transmission oil - Fill transmission with oil.

John Deere L110 Mower Deck Troubleshooting

Discharge Chute Plugged

Ground speed too fast - Use slower speed.
Grass too long - Adjust cutting height.
The grass is wet - Do not mow when grass is wet.
Engine speed reduced - Open throttle fully.
Lack of air flow - Set higher revs.
cut too low - Use higher cutting.
Belt is loose - Fit belt correctly.

Uncut grass during operation

Cutting deck clogging - Inspect and clean cutting deck.
Defective blade - Install new blade.
Mower deck is low from ground - Checking and adjust deck height.
Bagger too full - Empty the grass bag.
Traveling too fast - Do not use high speed.

Belt slips

Debris in pulleys - Clean or replace.
Belt is loose - Install new belt.
Belt tension improper - Belt tension needs to be adjusted.

Mower vibrates

Mower clogged or in pulleys - Remove debris from deck or pulley.
Mower belt or sheave damaged - Change defective components.
Belt or pulleys out of centering - Inspect and adjust.
The blades are unbalanced - Balance the blades.

Blade strips grass

Wrong cutting height - Set the correct cutting height.
Mower wheels not adjusted correctly - Check wheel adjustment.
Tires inflated insufficient - Tire pressure required.
Higher blade speed - Balance mower speed.
Bent blades during operation - Replace blades.

Uneven Cut

Deck level is too low - Deck leveling required.
Low tire pressure - Check and inflate the tires.
Wheels not positioned correctly - Adjust mower deck wheels.
Speed too high - Don't use fast speed.
Mower blade bent or worn - Sharpen the blade or install a new one.

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