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John Deere LA110 Problems and Solutions

John Deere LA110 Engine Troubleshooting

Tractor engine starting problems

Fuel tank is empty - Fill gasoline up.
Wrong fuel grade - Change fuel.
Old gasoline - Drain fuel and add fresh.
Dirty fuel lines - Inspect and clean.
Defective spark plug wires - Install new spark plug wires.
Spark plug damaged - Change as required.
Clogged fuel filter - Change fuel filter.
Safety contact for brake pedal defective - Install new part.
Carburetor problems - Carburetor diagnostics required.
Test fuel transfer pump output. Check the Valves and Compression System.

Gas engine is difficult to start

Spark plug worn out - Inspect the spark, change if necessary.
Carburetor not adjusted - Adjust according to instructions.
Fuel pipes are clogged - Servicing fuel system.
Throttle cable is not adjusted correctly - Check and adjust.
Stale or improper gasoline - Pour quality fuel.
Electrical connection problems - Checking and replace.
Starter is not working - Test starter and repair if necessary.

Engine runs unevenly

Cooling fins plugged - Clean cooling fins.
Loose electrical contacts - Check and replace damaged connections.
Ignition adjust incorrect - Check ignition and adjust if necessary.
Choke cable sticking - Check and change if required.
Air filter blocked - Change air cleaner.

Engine runs but misses

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

JD LA110 Engine overheating

Engine runs under excessive load - Reduce loads.
Air inlet or cooling fins blocked - Clean clogged components.
Engine oil low or too high - Checking oil level and oil pressure.
Poor quality oil - Change oil.
Check connecting rod to crankshaft bearing clearance.
Idle speed problems - Adjust fast idle.

Engine doesn't idle speed

Spark plug is loose - Adjust spark plug gap.
Faulty spark plug - Inspect the spark, replace if necessary.

Engine knocking

Stale fuel - Change fuel.
Engine overload - Reduce the load.
Oil level low - Check oil level and add if necessary.
Engine speed too low - Adjust the required speed.
Piston rings and cylinder bore are wear - Inspect and replace if required.
Inspect for engine overheats from clogged cooling fins.
Check and adjust valve clearance.
Inspect for loose or wear connecting rods.

Engine back-fire

Check spark plug for fouled.
Inspect and adjust choke.
Adjust carburetor idle mixture screw.
Checking and adjusting ignition coil air gap.
Check inlet and outlet valves.
Checking and adjusting valve clearance.
Check flywheel key.

Insufficient engine power

Engine overheating - Replace air cleaner.
Excess engine oil - Excess oil must be drained.
Faulty fuel pump - Test fuel pump output.
Faulty governor - Inspect and adjust governor.
Inspect carburetor for plugged passages.
Test engine compression.

Excessive fuel consumption

Throttle did not open fully - Check choke cable.
Carburetor problems - Check carburetor float adjustment.

Black exhaust smoke

Air cleaner element plugged - Inspect and clean.
Throttle not fully engaged - Inspect and adjust choke.
Checking and adjusting carburetor float level.

JD LA110 Electrical System Troubleshooting

Starter does not run

Fuse is defective - Fit new fuse.
Battery contacts are corroded - Clean connections.
Battery not charged - Charge the battery.
Ignition switch defective - Install new switch.
Starter fault - Change the starter.
Electrical wires are damaged - Replace electric wires.

Battery doesn't charge

One or more battery cells dead - Install new battery.
Battery terminals and cables are dirty - Replace or clean cable.

Lighting does not function

Light plug defective.
Replace light bulbs.
Inspect electrical wires for short- circuit.

John Deere LA110 Machine Troubleshooting

Excessive tractor vibration

Equipment driven belt worn out - Belt replacement required.
Worn traction drive belt - Installing new driven belt.
Dirt on driven pulley - Clean the sheaves.
Bent cutting blade or no balance - Change damaged blades.

Engine runs but tractor won't move

Parking brake holds the tractor - Release the parking brake.
Bypass lever is on - Disengage the bypass valve lever.
Blade becomes loose - Fasten the blades securely.
Incorrect blade balance - Check blades for damage and balance as required.
Too much or too little oil - Topping up oil.

John Deere LA110 Lawn Mower Troubleshooting

Plugged discharge chute

Lawn mower is driving too fast - Need to reduce speed.
Grass too long - Use a shorter cutting height.
The grass is wet - Wait for the grass to dry.
Low engine speeds - Engine speed must be increased.
Loss of airflow - Adjust to high revs.
Low cutting height - Adjust cutting settings.
Incorrect belt installation - Check belt installation.

Patches of grass uncut

Cutting deck clogging - Clean mower deck.
Excessive blade wear - Check and replace the blade.
Mower deck is low from ground - Adjust and level the deck height.
Grass bag too full - Clean bagger.
Speed is very fast - Need to reduce speed.

Belt Slipping

Debris in sheaves - Recommend cleaning the sheaves.
Belt is worn out - Fit new belt.
Poor belt tension - Check and adjusting belt tension.

Too much mower vibration

Mower clogged or in pulleys - Clean sheave and deck from clogging.
Pulley or belt faulty - Replace damaged parts.
Pulleys or belt misaligned - Check and centering.
Improper blade balancing - Balance blades correctly.

Blades scalp grass

Incorrect height cutting - Raise cutting height.
Mower rollers not adjusted improperly - Adjust wheel heights correctly.
Insufficient tire pressure - Increase tire pressure.
Higher blade speed - Correct blades speed.
Blades are bent - Replace blades.

Uneven Cut

Mower deck not level - Level mower deck.
Tire pressure unequal - Tire pressure required.
Wrong rollers position - Check the rollers heights.
Speed too high - Operate the mower at low speed.
Mower blades blunt - 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