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Husqvarna GT48XLSi Garden Tractor
The
Husqvarna GT48XLSi garden tractor was manufactured between 2013 and 2018. The
Husqvarna GT48XLSi is powered by two engines: a 44.2 cu.in (724 cc) Briggs and
Stratton 44Q777 4-cycle vertical-shaft 2-cylinder air-cooled gasoline engine
with a maximum power of 24 hp (18 kW), or 44.2 cu.in (724 cc) Briggs and
Stratton 44N877 4-cycle vertical-shaft 2-cylinder air-cooled gasoline engine
with a max power of 24 hp (18 kW).
The Husqvarna GT48XLSi is fitted with a Tuff Torq K66 ELD belt-driven
hydrostatic transmission with foot-controlled variable speed drive. Max.
forward speed - 5.5 mph (8.8 kph), maximum reverse speed - 2.4 mph (3.8
kph). The Husqvarna GT48XLSi is equipped with a manual steering system,
disc brakes, 16x6.50-8 front tires, and 23x10.5-12 rear tires. The wheel
base is 48" (1210 mm).
The garden tractor is compatible with a 48" mid-mount 3-blade side
discharge mower deck with cutting height of 1.5-4.0 in (38-102 mm), 7
cut positions, electric blade engagement, and mechanical lift system.
| Engine Troubleshooting |
| Engine is not starting or hard starting |
| Empty gas tank - Add gasoline |
| Incorrect fuel grade - Change fuel |
| Air in the fuel pipes - Bleed the fuel pipes |
| Spark plug wire connection are damaged - Inspect spark plug wiring connection, change or repair |
| Defective spark plug - Replace spark plug |
| Fuel filter is dirty - Fuel filter needs to be replaced |
| Defective safety switch - Replace if required |
| Wrong carburetor adjustment - Adjusting carburetor correctly |
| Bad engine compression - Inspect cylinder block and replace worn components |
| Worn or improperly adjusted choke cable - Replace cable or adjust properly |
| Air intake screen is blocked - Clean and wash as required |
| Ignition system failure - Check ignition system and replace faulty parts |
| Throttle cable is faulty or stuck - Replace or service the cable |
| Dirty air filter element - Clean or replace air filter |
| Fuel pump is clogged or faulty - Check fuel pump and change if required |
| Engine starts and then stalls |
| Spark plug is defective - Spark plug need to be replaced |
| Clogged or defective carburetor - Clean or install new carburetor |
| Damaged ignition coil - Ignition coil must be replaced |
| Valve springs are loose or broken - Change valve springs |
| Valves sticking - Service the valves |
| Engine oil insufficient - Fill up the engine oil |
| Engine is overloaded - Load reducing is recommended |
| Cooling fins are clogged - Need to wash or clean |
| Carburetor mixture is too lean - Adjust carburetor correctly |
| Improper ignition timing - Set the ignition timing correctly |
| Valve setting is incorrect - Valves needs to be set correctly |
| Abnormal engine noise or knocking |
| Stale or low octane fuel - Use proper fuel |
| Engine is running overloaded - Reduce engine load |
| Engine oil insufficient - Fill the crankcase with engine oil |
| Improperly adjusted low idle speed - Correct idle settings |
| Fuel pump is clogged or faulty - Clean or change fuel pump |
| Crankshaft or main bearings wear - Need to install new components |
| Valve clearance is improper - Adjustment procedure required |
| Cylinder bore or piston rings are worn - Change faulty components |
| Dirty or incorrectly adjusted carburetor - Clean or correctly adjust carburetor |
| Air filter is dirty - Change or service air filter |
| Fuel pump is damaged or dirty - Clean or install new fuel pump |
| Ignition system failure - Check ignition and replace faulty components |
| Cylinder head gasket is blown - Change cylinder head gasket |
| Stuck or burned valves - Clean or change valves |
| Damaged or worn push rod - Install a new push rod |
| Faulty cylinder block components - Replace defective parts as required |
| Excessive fuel consumption |
| Throttle not fully open - Check throttle cable and adjust as required |
| Incorrect adjustment of carburetor main jet - Adjust it correctly |
| Spark plug is faulty or loose - Re-tighten or replace spark plug |
| Burned, worn, or stuck valves - Service or change valves |
| Worn piston, rings, or sleeve - Replace faulty parts as required |
| Valve clearance is wrong - Adjust valve clearance |
| Excessive engine oil consumption |
| Gaskets or seals are excessively worn - Install new components |
| Valve guides or stems are damaged - Replace the valves |
| Piston rings are seized or worn - Piston rings replacement required |
| Cylinder liner or piston is scored - Inspect piston and liner, change as required |
| Breather pipe or hose is plugged - Clean or change |
| Hydrostatic Transmission Troubleshooting |
| HST transmission noises |
| Bent or unadjusted speed control pedal linkage - Adjust or install new linkage |
| Excessive transmission load - Load needs to be reduced |
| Low transmission oil level or contaminated oil - Add oil to the correct level or fill the transmission with fresh oil |
| Worn or defective transmission components - Check hydrostatic transmission components for defect or damage and change if necessary |
| Stuck or damaged gshift linkage - Replace or repair the linkage |
| Hydrostatic pump is blocked or defective - Replace or repair pump |
| Defective or unadjusted transmission shift control components - Adjust correctly or replace |
| Transmission fluid level is low - Check and refill the transmission fluid |
| Faulty or worn drive sheave - Install a new sheave |
| Shift linkage is unadjusted or damaged - Adjust properly or change linkage |
| Speed control pedal linkage is bent or not adjusted - Adjust or replace linkage |
| Transmission seals or gaskets are broken - Install new gaskets or seals |
| Final drive shaft leakage - Change shaft seals |
| Transmission housing is cracked - Replace damage housing or transmission assembly |
| Mower Deck Troubleshooting |
| Mower vibrates excessively |
| Drive pulley of mower deck is damaged or dirty - Replace or service pulley |
| Loose or defective drive belt - Replace belt or adjust belt tension |
| Unbalanced or warped mower blades - Balance or change as needed |
| Loose blade bolts tightening - Bolts should be tightened |
| Discharge chute regular clogging |
| Fast ground speed - Need to slow down |
| Long grass - Need to set low cutting height |
| Low engine speeds - Adjust throttle to full opening |
| Cutting height is too low - Change cutting height adjustment |
| Improper drive belt installation - Install drive belt as required |
| Clogged mower deck - Clean mower deck as required |
| Not sharp blades - Need a blade sharpening |
| Damaged or worn blades - Change the blades |
| High mowing speed - Need to slow down |
| Cutting height is too low - Use correct cutting height |
| Filled grass bag - Remove grass from bag |
| Uneven or bumpy lawn - Lawn needs to be leveled |
| Cutting level is too low - Raise the cutting height |
| Fast ground speed - Need to slow down |
| Improperly leveled mower deck - Adjust the level of mower deck correctly |
| Damaged or bent blades - Replace the blades |
| Tires are not correctly inflated - Need to inflate tires |
| Tires are not correctly inflated - Need to inflate tires |
| Improper mower deck level - Deck should be adjusted correctly |
| Blades are excessively dull - Need to sharpen the blades |
| Worn or defective blades - Change the blades |
| Mower deck is clogged - Clean mower deck as required |
| Deck housing is damaged - Replace or repair the deck |
| Mower spindle is loose or defective - Install new spindle or repair it |
| Electrical Troubleshooting |
| Battery does not charge |
| Corroded or loose wire connections - Clean or tighten connections |
| Faulty battery terminal clamps - Terminal clamps need to be replaced |
| Battery faulty cell - Change the battery |
| Starter motor cranks slow |
| Battery voltage is low - Recharge the battery |
| Battery drains quickly - Service battery or change it |
| Disconnected battery cables or bad terminals - Check battery wires and service or replace terminals |
| Battery is low or faulty - Change or recharge battery |
| Wiring is improperly connected or disconnected - Check wiring and connect properly |
| Low battery power - Low battery charging, charge as required |
| Spark plug gapped improperly or faulty - Clean and gap or replace |
| Solenoid or starter motor is faulty - Repair starter or change solenoid |
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| Lawn and Garden Tractors Technical Specs |
