________________________________________________________________________________________
Husqvarna YTA18542 Troubleshooting
The
Husqvarna YTA18542 lawn tractor was manufactured from 2015 to 2020. The
Husqvarna YTA18542 tractor is powered by 32.9 cubic inches (540 cc) Briggs and
Stratton 33R777 Intek 4-cycle vertical-shaft single cylinder air-cooled gasoline
engine with a maximum power of 18.5 Hp (13.8 kW), or 32.9 cubic inches (540 cc)
Briggs and Stratton 33S777 Intek 4-cycle vertical-shaft single cylinder
air-cooled gasoline engine with a rated power of 18.5 Hp (13.8 kW).
The riding lawn mower is fitted with a continuously variable
transmission with infinite forward and reverse gears. The maximum
forward speed - 7.4 mph (11.8 km/h), maximum reverse speed - 2.9 mph
(4.6 km/h).
The Husqvarna YTA18542 is equipped with a manual steering, pneumatic
wheels, 15x6.00-6 front tires, and 20x8.00-8 rear tires. The lawn
tractor is compatible with a 42" mid-mount 2-blade mower deck with
cutting height of 1.5-4.0 in (38-101 mm), manual blade engagement, 6 cut
positions, and mechanical lift system with hand operated.
| Engine Troubleshooting |
| Engine starts up hard or will not start |
| No gasoline in tank - Add gasoline |
| Low-quality gasoline - Use correct gasoline grade |
| Air in the fuel system - Air bleeding |
| Disconnected or loose spark plug wire - Check spark plug wiring connection, repair or change |
| Spark plug is damaged - Change spark plug as required |
| Clogged fuel filter - Fuel filter needs to be replaced |
| Faulty safety switch - Change damaged switch |
| Problems with carburetor adjustment - Adjust as required |
| Engine has bad compression - Check cylinder block and change wear parts |
| Throttle cable is worn or adjusted improperly - Adjust correctly or replace the cable |
| Clogged cooling fins - Need to clean or wash |
| Ignition system is defective - Check ignition and replace faulty components |
| Throttle cable is faulty or stuck - Change or clean the cable |
| Air filter element is clogged - Change or service air filter |
| Fuel pump is damaged or dirty - Clean or change fuel pump |
| Engine starts and then shuts off |
| Damaged spark plug - Spark plug need to be replaced |
| Faulty or clogged carburetor - Repair or clean carburetor |
| Ignition coil is damaged - Change ignition coil as required |
| Broken or bad valve springs - Valve springs need to be changed |
| Valves are stuck - Service the valves |
| Insufficient engine oil - Checking oil level and add if necessary |
| Excessive engine load - Reduce engine load |
| Air intake screen is blocked - Need to wash or clean |
| Carburetor fuel mixture is too lean - Adjust carburetor properly |
| Incorrect ignition timing - Adjust ignition timing correctly |
| Improper valve setting - Valves needs to be adjusted properly |
| Low octane gasoline - Change gasoline |
| Engine is under excessive load - Reduce load |
| Engine oil level is low - Need to add engine oil |
| Low idle speed set incorrectly - Correct idle settings |
| Fuel pump is clogged or faulty - Inspect fuel pump and change as required |
| Crankshaft or main bearings are worn out - Need to install new components |
| Improper valve clearance - Adjust valve clearance |
| Damaged cylinder bore or piston rings - Change faulty components |
| Carburetor is dirty or incorrectly adjusted - Clean or properly adjust carburetor |
| Air filter is dirty - Change or service air filter |
| Fuel pump is clogged or faulty - Inspect fuel pump and change as required |
| Ignition system problems - Test ignition and replace failed parts |
| Damaged cylinder-head gasket - Install new head gasket |
| Burned or stuck valves - Service or replace valves |
| Worn or defective push rod - Push rod should be replaced |
| Faulty cylinder block parts - Replace defective parts as required |
| Engine uses too much fuel |
| Choke opening is not full - Replace or adjust choke cable |
| Incorrect carburetor main jet adjustment - Adjust main jet as required |
| Faulty or loose spark plug - Spark plug need to be tightened or replaced |
| Valves are stuck, worn, or burned - Clean or replace valves |
| Rings, sleeve, or piston are damaged - Change faulty components |
| Valve clearance is wrong - Need to adjust valve clearance |
| High engine oil consumption |
| Damaged gaskets or seals - Replace defective parts |
| Valve guides or stems are damaged - Need to replace the valves |
| Piston rings are seized or worn - Install new piston rings |
| Damaged piston or cylinder liner - Inspect piston and liner, fit new components as necessary |
| Breather pipe or hose is plugged - Replace or clean |
| Continuously Variable Transmission Troubleshooting |
| CVT transmission noise |
| Defective or not adjusted speed control pedal linkage - Change or adjust linkage |
| Excessive transmission load - Reduce transmission load |
| Dirty transmission fluid or insufficient fluid level - Top up to proper level or change transmission fluid |
| Transmission parts are worm or defective - Check CVT components for defect or damage and change if necessary |
| Shift linkage is stuck or worn - Clean or replace linkage |
| Faulty or blocked hydrostatic pump - Replace or repair pump |
| Transmission shift control parts are faulty or unadjusted - Adjust correctly or replace |
| Lack of transmission oil supply - Fill up the transmission oil |
| Worn or faulty drive pulley - Change pulley |
| Shifting linkage is broken or misadjusted - Adjust properly or replace linkage |
| Worn or out of adjustment speed control linkage - Change or adjust linkage |
| Transmission gaskets or seals are worn - Seals and gaskets need to be replaced |
| Final drive shaft leaks - Change shaft seals |
| Cracked transmission case - Replace defective case or transmission assembly |
| Mower Deck Troubleshooting |
| Mower vibration is excessive |
| Clogged or damaged mower drive sheave - Clean or change sheave |
| Loose or damaged drive belt - Install a new belt or adjust belt tension |
| Unbalanced or warped cutting blades - Balance or change blades |
| Loose blade bolts tightening - Tighten it fast |
| Discharge chute regular clogging |
| High ground speed - Use a slower speed |
| Grass is too high - Use a lower cutting height |
| Reduced engine rpm - Open throttle fully |
| Mower cuts too low - Change cutting height adjustment |
| Improper drive belt installation - Install drive belt as required |
| Discharge chute is plugged - Check cutting deck and clean as necessary |
| Blades are excessively dull - Need to sharpen the blades |
| Worn or damaged blades - Blades must be changed |
| Fast mowing speed - Need to slow down |
| Low cutting height - Adjust mower to higher cutting height |
| Full grass bag - Remove grass from bag |
| Blades are scalping the grass |
| Bumpy or unleveled lawn - Lawn leveling required |
| Mower cuts too low - Change cutting height adjustment |
| Ground speed is too fast - Select a slower speed |
| Improper mower deck level - Adjust the level of mower deck correctly |
| Blades are bent or worn - Replace the blades |
| Tires are not correctly inflated - Check and inflate the tires |
| Tires are not properly inflated - Inflate tires correctly |
| Incorrectly leveled mower deck - Deck needs to be adjusted properly |
| Blades are excessively dull - Sharpen the blades |
| Bent or worn blades - Change the blades |
| Mower deck is clogged - Check cutting deck and clean as necessary |
| Deck housing is broken - Repair or change the deck |
| Mower spindle is bent or loose - Spindle needs to be repaired or replaced |
| Electrical Troubleshooting |
| Battery cannot be charged |
| Loose or corroded electrical wiring connections - Clean or tighten wiring connections |
| Battery terminal clamps are defective - Terminal clamps need to be replaced |
| Dead cell in battery - Install a new battery |
| Low battery capacity - Recharge the battery |
| Battery is not holding charge - Battery needs to be serviced or replaced |
| Battery cables are disconnected or terminals are faulty - Check cable connections and replace or service terminals |
| Battery is discharged or defective - Replace or charge as required |
| Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required |
| Low battery voltage - Battery is drained, recharge it |
| Spark plug faulty or incorrectly gapped - Clean and gap or replace |
| Damaged starter motor or solenoid - Repair starter or replace solenoid |
________________________________________________________________________________________
________________________________________________________________________________________
| Lawn and Garden Tractors Technical Specs |
