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Husqvarna TS 138L Troubleshooting
The
Husqvarna TS 138L 2-wheel drive lawn tractor was manufactured between 2019 and
2022. The Husqvarna TS138L driveline consists of Loncin LC1P92F-1 four-cycle
vertical-shaft single cylinder air-cooled gasoline engine and Tuff Torq K46 BA
belt-driven hydrostatic transmission with infinite forward and reverse gears.
A 27.6 cubic inches (452 cc) engine has a cylinder bore of 3.62" (92
mm), piston stroke of 2.68" (68 mm), and max power of 16 hp (11.9 kW).
The fuel system has a fixed main jet carburetor and pulse fuel pump. The
maximum forward speed - 5 mph (8 kph), maximum reverse speed - 2.2 mph
(3.5 kph).
The Husqvarna TS 138L lawn tractor is equipped with a manual steering,
pneumatic wheels, 15x6.00-6 front tires, and 18x8.50-8 rear tires.
Compatible attachments for the tractor: 38" mid-mount 2-blade side
discharge mower deck with cutting height of 1.5-4.0 in (38-101 mm),
manual blade engagement, six cut positions, and mechanical lifting
system with hand operated.
| Engine Troubleshooting |
| Engine difficult to start or doesn't start |
| Gas tank is empty - Add gasoline |
| Low-quality gasoline - Change fuel |
| Fuel system clogged - Repair or replace |
| Defective wiring connection of spark plug - Inspect the spark plug wire connection, replace or repair |
| Damaged spark plug - Install new spark plug |
| Fuel filter is dirty - Replace fuel filter |
| Defective safety switch - Replace if required |
| Carburetor malfunction - Check and repair as required |
| Low cylinder compression - Check cylinder block and replace worn parts |
| Damaged or incorrectly adjusted choke cable - Replace cable or adjust properly |
| Engine runs intermittently |
| Clogged cooling fins - Wash or clean as required |
| Defective ignition system - Check ignition and replace faulty components |
| Stuck or faulty throttle cable - Change or clean the cable |
| Clogged air filter - Replace or clean air filter |
| Fuel pump is dirty or defective - Clean or change fuel pump |
| Engine starts but immediately stops |
| Spark plug is defective - Change spark plug as required |
| Carburetor is defective or dirty - Clean or change carburetor |
| Defective ignition coil - Replace ignition coil as necessary |
| Valve springs are worn or loose - Install new valve springs |
| Stuck valves - Service the valves |
| Low engine oil level - Fill up the engine oil |
| Engine overload - Load reducing is recommended |
| Cooling fins are blocked - Clean and wash as required |
| Carburetor is running lean - Make the correct settings |
| Wrong ignition timing - Set the ignition timing correctly |
| Incorrect valve setting - Set the valves properly |
| Abnormal engine knocking or noise |
| Stale gasoline - Use correct fuel |
| Engine is overloaded - Load reducing required |
| Engine oil level low - Fill up the oil to required level |
| Low idle speed setting is not correct - Adjust idle speed |
| Fuel pump is faulty or clogged - Test fuel pump and change if necessary |
| Main bearings or crankshaft failure - Worn parts replacement required |
| Valve clearance is wrong - Adjust valve clearance according to specifications |
| Damaged cylinder bore or piston rings - Change defective components |
| Carburetor is dirty or incorrectly adjusted - Adjust carburetor properly or service it |
| Dirty air filter element - Service or replace air filter |
| Fuel pump is damaged or dirty - Clean or change fuel pump |
| Ignition system failure - Check ignition and replace faulty components |
| Cylinder head gasket is worn - Replace cylinder head gasket |
| Valves are stuck or burned - Replace or clean valves |
| Push rod is worn or damaged - Push rod should be replaced |
| Cylinder block parts are damaged - Replace defective parts |
| Excessive fuel consumption |
| Throttle does not open well - Inspect throttle cable and adjust it |
| Carburetor main jet adjustment is incorrect - Adjust the carburetor main jet properly |
| Spark plug is loose or defective - Tighten or replace spark plug |
| Valves are stuck, burned, or worn - Clean or replace valves |
| Sleeve, rings, or piston are damaged - Replace faulty components |
| Incorrect valve clearance - Need to adjust valve clearance |
| Engine oil consumption is too high |
| Gaskets or seals are excessively worn - Replace worn parts to avoid leaks |
| Damaged valve stems or valve guides - Replace the valves |
| Worn or stuck piston rings - Install new piston rings |
| Damaged piston or cylinder liner - Inspect liner and piston, change as necessary |
| Breather pipe or hose is blocked - Replace or clean |
| Hydrostatic Transmission Troubleshooting |
| HST transmission makes excessive noise |
| Worn or out of adjustment speed control linkage - Replace or adjust linkage |
| Excessive transmission load - The load should be reduced |
| Transmission fluid is dirty or fluid level is too low - Add fluid to the correct level or fill the HST with fresh fluid |
| Defective or worn transmission parts - Change or repair defective parts |
| Rusty or worn shift linkage - Install a new gear linkage |
| Seized or worn hydrostatic pump - Repair or change pump |
| Worn or misadjusted transmission shift control parts - Change or adjust correctly |
| Low fluid level - Fill the transmission housing to proper fluid level |
| Damaged or worn drive pulley - Install a new pulley |
| Damaged or misadjusted shifter linkage - Adjust properly or replace linkage |
| Speed control linkage is worn or unadjusted - Change or adjust linkage |
| Worn transmission seals or gaskets - Install new seals or gaskets |
| Final drive shaft leakage - Install new shaft seals |
| Cracked transmission housing - Install a new transmission housing |
| Mower Deck Troubleshooting |
| Mower vibrates too much |
| Damaged or clogged mower drive pulley - Replace or service pulley |
| Loose or defective drive belt - Belt needs to be adjusted or replaced |
| Cutting blades are not balanced or warped - Balance blades or replace it |
| Blade mounting bolts are loose - Tighten it fast |
| Constant clogging of discharge chute |
| Mowing speed is too high - Use a lower speed |
| Grass is too long - Need to set low cutting height |
| Low engine speeds - Throttle is not fully open |
| Mower cuts too low - Use a higher cutting height |
| Mower drive belt installation is improper - Check drive belt for correct installation |
| Cutting deck is clogged - Need to clean the mower deck |
| Blades are not sharp - Need to sharpen the blades |
| Blades are worn or damaged - Replace the blades |
| Mowing speed is too high - Operate at slower speed |
| Cutting level is too low - Change cutting height adjustment |
| Grass bag is overfilled - Grass bag must be empty |
| Blades are scalping the grass |
| Lawn is uneven or bumpy - Level the lawn |
| Mower deck set to low cutting - Raise the cutting height |
| Fast mowing speed - Need to slow down |
| Incorrectly leveled mower deck - Deck needs to be adjusted properly |
| Worn or bent blades - Install new blades |
| Incorrect tire pressure - Need to inflate tires |
| Tires are not properly inflated - Correct tire pressure |
| Incorrectly leveled mower deck - Level the deck properly |
| Not sharp blades - Need to sharpen the blades |
| Blades are worn or damaged - Replace the blades |
| Deck clogged with grass clippings - Inspect and clean cutting deck |
| Broken mower deck shell - Replace or repair the deck |
| Bent or loose mower spindle - Replace or repair the spindle |
| Electrical Troubleshooting |
| Battery cannot be charged |
| Electrical cable connections are loose or corroded - Tighten or clean electrical wiring connections |
| Battery terminal connectors are defective - Change terminal connectors |
| Battery is worn - Install a new battery |
| Battery power is low - Battery is drained, recharge it |
| Battery runs out quickly - Service battery or replace it |
| Faulty battery terminals or disconnected cables - Connect wiring properly or install new terminals |
| Battery is drained or defective - Need to charge or replace the battery |
| Battery cables are disconnected or incorrectly connected - Check cables and connect as needed |
| Low battery voltage - Recharge the battery |
| Spark plug dirty or improperly gapped - Clean, gap or change spark plug |
| Damaged starter motor or solenoid - Repair starter or install a new solenoid |
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| Lawn and Garden Tractors Technical Specs |
