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Husqvarna TS 138 Troubleshooting
The
Husqvarna TS 138 2WD lawn tractor was manufactured from 2013 to 2019. The
Husqvarna TS138 tractor is powered by 30.5 cubic inches (501 cc) Briggs and
Stratton 31R577 4-cycle single cylinder air-cooled gasoline engine with a
maximum power of 15 Hp (11.2 kW).
The engine has a fixed main jet carburetor, full pressure lubrication
with oil filter, cartridge type air filter, and electronic ignition
system. The tractor is fitted with a Tuff Torq K46 hydrostatic transaxle
with foot-controlled variable speed drive. The max forward speed -
5.2 mph (8.4 km/h), max reverse speed - 2.2 mph (3.5 km/h).
The
Husqvarna TS 138 is equipped with a manual steering system, disc brakes,
15x6.00-6 front tires, and 18x8.50-8 rear tires. The lawn tractor is
compatible with a 38" mid-mount 2-blade side discharge 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 hard to start or will not start |
| Empty fuel tank - Add fuel |
| Incorrect fuel grade - Change fuel |
| Water or air in fuel system - Remove air or water from system |
| Spark plug wiring connection is defective - Inspect the spark plug wire connection, replace or repair |
| Spark plug is damaged - Install new spark plug |
| Fuel filter is plugged - Replace fuel filter |
| Brake pedal not pushed down - Push the brake pedal down |
| Carburetor incorrectly set - Set carb correctly |
| Low cylinder compression - Check cylinder block and replace worn parts |
| Throttle cable is damaged or adjusted incorrectly - Adjust correctly or replace the cable |
| Cooling fins are blocked - Wash or clean as required |
| Ignition system malfunction - Check ignition and replace faulty components |
| Stuck or defective choke cable - Service or change the cable |
| Clogged air filter - Replace or service air filter |
| Dirty or defective fuel pump - Clean or change fuel pump |
| Engine starts and stalls immediately |
| Defective spark plug - Change spark plug as required |
| Carburetor is clogged or defective - Clean or change carburetor |
| Ignition coil is damaged - Ignition coil must be replaced |
| Bad or damaged valve springs - New valve springs need to be installed |
| Stuck valves - Valves must be cleaned |
| Low engine oil level - Checking oil level and add if necessary |
| Engine overload - Reduce load |
| Plugged cooling fins - Clean and wash as required |
| Carburetor fuel mixture is too lean - Adjust carburetor correctly |
| Ignition timing is incorrect - Set the ignition timing correctly |
| Valve setting is improper - Adjust valves as required |
| Stale or low octane fuel - Change fuel |
| Excessive engine load - Load reducing required |
| Lack of engine oil - Check oil level and add oil as required |
| Low idle speed setting is incorrect - Correct idle settings |
| Dirty or damaged fuel pump - Test fuel pump and replace if necessary |
| Crankshaft or main bearings are worn out - Install new parts as as required |
| Excessive valve clearance - Adjust to proper valve clearance |
| Piston rings or cylinder bore are worn - Change faulty parts |
| Improperly adjusted or dirty carburetor - Service or properly adjust carburetor |
| Air filter element is plugged - Replace or service air filter |
| Dirty or faulty fuel pump - Test fuel pump and change if necessary |
| Ignition failure - Inspect ignition system and change failed components |
| Defective cylinder head gasket - Change cylinder head gasket |
| Burned or stuck valves - Change or service valves |
| Bent or worn push rod - Install a new push rod |
| Worn cylinder block parts - Defective components need to be replaced |
| Insufficient throttle opening - Adjust or replace throttle cable |
| Improper adjustment of carburetor main jet - Adjust the carburetor main jet properly |
| Faulty or loose spark plug - Re-tighten or change the spark plug |
| Valves are stuck, burned, or worn - Service or change valves |
| Worn rings, piston, or sleeve - Replace defective parts as required |
| Incorrect valve clearance - Adjust to proper valve clearance |
| Engine consuming too much oil |
| Worn gaskets or seals - Replace worn parts to avoid leaks |
| Valve guides and stems are worn - Replace the valves |
| Stuck or worn piston rings - Replace piston rings |
| Damaged piston or cylinder liner - Inspect liner and piston, change as necessary |
| Breather pipe or hose is blocked - Service or replace |
| Hydrostatic Transmission Troubleshooting |
| Excessive HST transmission noise |
| Speed control pedal linkage is damaged or out of adjustment - Repair or adjust linkage |
| Transmission overload - Load needs to be reduced |
| Transmission oil is contaminated or oil level is insufficient - Fill to required level or change the transmission oil |
| Transmission parts are worm or defective - Replace or repair defective components |
| Loose or broken shift linkage - Change defective linkage |
| Worn or seized hydrostatic pump - Change or repair pump |
| Worn or misadjusted transmission shift control parts - Adjust properly or change |
| Transmission oil insufficient - Check transmission oil level and add oil as required |
| Drive sheave is defective or worn - Replace sheave |
| Not adjusted or damaged shifter linkage - Adjust properly or replace linkage |
| Speed control pedal linkage is damaged or out of adjustment - Change or adjust linkage |
| Transmission gaskets or seals are worn - Install new gaskets or seals |
| Final drive shaft is leaking - Shaft seals need to be changed |
| Cracked transmission case - Replace case or transmission assembly |
| Mower Deck Troubleshooting |
| Excessive mower vibration |
| Mower deck drive sheave is clogged or worn - Change or clean sheave |
| Drive belt is loose or defective - Belt needs to be adjusted or replaced |
| Cutting blades are bent or unbalanced - Balance or replace blades |
| Loose blade bolts tightening - Bolts need to be tightened |
| Discharge chute regular clogging |
| High ground speed - Use a slower speed |
| Tall grass - Use a lower cutting height |
| Reduced engine speeds - Open throttle fully |
| Cutting level is too low - Must be set to high cutting height |
| Incorrect mower drive belt installation - Install drive belt as required |
| Mower leaving random uncut of grass |
| Cutting deck clogging - Clean mower deck as required |
| Blades are not sharp - Need a blade sharpening |
| Defective or worn blades - Blades need to be replaced |
| Fast mowing speed - Select a lower speed |
| Cutting level is too low - Change cutting height adjustment |
| Full grass bag - Grass bag must be empty |
| Blades are scalping the grass |
| Lawn is uneven or bumpy - Roll or level the lawn |
| Cutting level is too low - Raise the cutting height |
| High mowing speed - Operate at slower speed |
| Mower deck is not leveled properly - Deck should be adjusted correctly |
| Worn or bent blades - Blades must be changed |
| Tire pressure is too low - Inflate tires correctly |
| Mower deck to cut unevenly |
| Tires are not properly inflated - Inflate tires as required |
| Mower deck is not leveled properly - Deck should be adjusted correctly |
| Blades are too dull - Need to sharpen the blades |
| Blades are worn or damaged - Change the blades |
| Cutting deck clogging - Inspect and clean cutting deck |
| Deck shell is damaged - Repair or change the deck |
| Loose or defective mower spindle - Replace or repair the spindle |
| Electrical Troubleshooting |
| Battery is not charging |
| Electrical wire connections are loose or corroded - Clean or tighten connections |
| Faulty battery terminal clamps - Change terminal clamps |
| Battery is worn - Use a new battery |
| Low battery capacity - Charge the battery |
| Battery won’t hold charge - Battery needs to be serviced or replaced |
| Wires are disconnected or battery terminals are corroded - Check wiring connections and replace or clean terminals |
| Battery is low or faulty - Battery needs to be recharged or replaced |
| Disconnected or incorrectly connected wires - Inspect battery wires and connect correctly |
| Low battery capacity - Battery needs to be recharged |
| Incorrectly gapped or worn spark plug - Clean and gap or replace |
| Starter motor or solenoid is damaged - Repair starter or change solenoid |
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| Lawn and Garden Tractors Technical Specs |
