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Cub Cadet LT1046 Lawn Tractor Problems

Cub Cadet LT1046 Engine Troubleshooting

Kohler engine starting problems

Gas tank is empty - Fill gasoline up.
Improper fuel grade - Use correct gasoline grade.
Old gasoline - Drain gasoline and fill fresh up.
Water or air in fuel system - Remove air or water from system.
Plug connection defective - Check wires connection.
Spark plug not working - Installing new spark plug.
Dirty fuel filter - Fit new filter.
Safety contact for brake pedal defective - Install new part.
Carburetor problems - Carburetor diagnostics required.
Inspect and adjust throttle cable. Compression problems.

Gas engine is difficult to start

Spark plug wear - Inspect the spark, replace if necessary.
Carburetor settings incorrect - Adjusting as required.
Fuel lines are clogged - Servicing fuel system.
Throttle cable damaged - Change the cable.
Stale or improper fuel - Pour quality fuel.
Electrical wiring worn out - Inspect and change.
Starter is not working - Test starter and repair if necessary.

Rough running engine

Cooling fins plugged - Remove dirt from cooling fins.
Loose electrical contacts - Check and restore defective connections.
Incorrect ignition settings - Check ignition and adjust if necessary.
Throttle cable sticks - Check and change if required.
Air cleaner element plugged - Change air cleaner.

Kohler engine misses

Spark plug worn out - Change spark plug.
Carburetor is not adjusted correctly - Adjust carburetor as required.
Ignition coil is damaged - Inspect ignition coil and change if required.

Engine overheating

Engine overloaded - Reduce the load.
Air intake screen clogged - Clean clogged components.
Too much or too little oil - Inspect oil level.
Low quality engine oil - Change oil.
Check connecting rod to crankshaft bearing clearance.
Fast idle speed - Adjust carburetor for slower idle speed.

Engine doesn't idle speed

Poor spark plug contact - Adjust spark plug gap.
Spark plug fail - Test spark and replace as required.

Kohler engine knocking

Stale gasoline - Use correct gasoline.
Engine overload - Reduce loads.
Low oil level - add oil as required.
Engine speed too low - Adjust the speed.
Cylinder bore and rings worn out - Check cylinder bore and rings for wear.
Check for engine overheating from plugged cooling fins.
Inspect and adjusting crankshaft end play.
Check for worn crankshaft or camshaft bearings.

Engine back-fire

Inspect spark plug and change if required.
Adjust or replace throttle.
Checking and adjusting carburetor.
Checking and adjusting ignition coil air gap.
Check inlet and outlet valves.
Inspect and set valve clearance.
Checking flywheel key.

Loss of power

Engine overheating - Replace air cleaner.
High engine oil - Remove excess oil.
Fuel pump is damage - Test fuel pump output.
Faulty governor - Checking and adjusting governor.
Check carburetor float adjustment.
Check engine compression.

Excessive Fuel Consumption

Choke doesn't open well - Inspect throttle cable.
Incorrect carburetor adjustment - Adjust or repair carburetor.

Black exhaust smoke

Air cleaner element plugged - Check and clean.
Choke partially engaged - Replace or repair choke.
Inspect carburetor needle valve and seat for wear or damage.

Cub Cadet LT1046 Electrical System Troubleshooting

Starter motor will not turn engine

Main fuse defective - Check and replace.
Battery contacts are corroded - Clean terminals.
Low battery voltage - Need to charge the battery.
Ignition lock defective - Change the lock.
Starter is not working - Install new starter.
Electrical wires are damaged - Connect wires.

Battery does not charge

Battery cells fails - Fit new battery.
No contact between cable and battery terminal - Clean or change cable.

Lights do not work

Light plug not connected - Reconnect
Loose or burned out bulb.
Short-circuit in cable.

Cub Cadet LT1046 Machine Troubleshooting

Excessive tractor vibration

Implements driven belt damaged or worn - Check and replace worn belt.
Worn traction drive belt - Installing new driven belt.
Drive pulley malfunction - Fit new pulley.
The mower deck blades are bent or unbalanced - Change as needed.

Tractor doesn't move when engine runs

Parking brake is applied - Release the parking brake.
Bypass valve lever in the push position - Set bypass valve to the off position.
Blade becomes loose - Inspect and fasten securely if necessary.
Improper blade balance - Balance the blades correctly.
Too much or too little oil - Add oil to the transmission.

Cub Cadet LT1046 Mower Deck Problems

Plugged discharge chute

Traveling too fast - Operate the mower at low speed.
Too high grass for mowing - Adjust the mower to a lower cutting height.
Grass too wet - Do not mow when grass is wet.
Low engine speeds - Engine speed must be increased.
Loss of airflow - Check engine rpm.
Low cutting height - Choose the correct cutting height.
Belt installed improperly - Fit belt correctly.

Patches of grass uncut

Mower deck clogged - Need to clean the mower deck.
Defective blade - Installing new blade.
Mower deck low - Leveling the mower deck.
Grass bagger overfilled - Empty the grass bag.
Ground speed too fast - Need to reduce speed.

Slipping drive belt

Dirt in the pulley - Clean or replace.
Belt is worn out - Install new belt.
Belt tension is incorrect - Belt tension needs to be adjusted.

Too much mower vibration

Mower deck clogged or in sheaves - Remove debris from deck or pulley.
Worn sheaves or belt - Change worn components.
Pulleys or belt misaligned - Inspect and align.
Improper blade balancing - Blade balance required.

Blade strips grass

Incorrect height cutting - Raise cutting height.
Mower wheels not adjusted correctly - Adjust rear or front wheel height.
Insufficient tire pressure - Inflate tires as required.
Blades speed too fast - Balance mower speed.
Bent mower blades - Install new blades.

Uneven Cut

Deck too low - Level mower deck.
Low tire pressure - Check and inflate the tires.
Incorrect rollers height - Adjust mower deck wheels.
Gear too high - Choose recommended speed.
Blades worn - Installing new blade.

CUB CADET TRACTORS TROUBLESHOOTING
1050	1863	2166	2182	2186
3184	3205	GT1554	GT2550	GTX2100
LT1040	LT1042	LT1045	LT1046	LT1050
LT2180	LTX1040	LTX1042	LTX1045	LTX1046
LTX1050	SLTX1054	XT1 LT42	XT1 LT46	XT3 GSX