Husqvarna LTH1738 - User Manual

Questions and Answers

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Jose JonesAug 18, 2025
Why my Husqvarna LTH1738 will not start?
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  Kathryn JohnsonAug 18, 2025
  If your Husqvarna Lawn Mower won't start, several factors could be at play. Start by checking if the fuel tank is full. If it is, make sure the engine is properly choked. If the engine is flooded, wait a few minutes before trying again. Other potential issues include a bad spark plug (which should be replaced), a dirty air filter (clean or replace it), a dirty fuel filter (replace it), or water in the fuel (empty the tank and carburetor, refill with fresh gasoline, and replace the fuel filter). Also, inspect for loose or damaged wiring. If none of these steps work, the engine valves may be out of adjustment, requiring assistance from an authorized service center.
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Angela VelezAug 20, 2025
Why is my Husqvarna LTH1738 Lawn Mower hard to start?
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  mooreamyAug 20, 2025
  If your Husqvarna Lawn Mower is hard to start, there are several things you can check. First, see if the air filter is dirty and clean or replace it. A bad spark plug can also cause this, so replace it if necessary. Additionally, check the battery; if it's weak or dead, recharge or replace it. A dirty fuel filter or stale fuel could also be the culprit, so replace the fuel filter and empty the fuel tank, refilling it with fresh, clean gas. Finally, inspect for loose or damaged wiring. If these steps don't resolve the issue, the engine valves may be out of adjustment, requiring attention from an authorized service center.
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Tanner ParksAug 26, 2025
What to do if my Husqvarna LTH1738 Lawn Mower engine will not turn over?
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  Duane Robertson Jr.Aug 26, 2025
  If your Husqvarna Lawn Mower engine won't turn over, make sure the brake pedal is depressed and the attachment clutch is disengaged. Also, check the battery; if it's weak or dead, recharge or replace it. A blown fuse can also prevent the engine from turning over, so replace the fuse if necessary. Corroded battery terminals can also cause this issue, so clean them. Additionally, check for loose or damaged wiring, a faulty ignition switch (check or replace it), or a faulty solenoid or starter (check or replace them). If none of these solutions work, there may be a faulty operator presence switch(es), and you should contact an authorized service center.
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Stephen LopezAug 28, 2025
Why does my Husqvarna LTH1738 have poor cut - uneven?
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  Justin JacksonAug 28, 2025
  If your Husqvarna Lawn Mower is giving an uneven cut, it could be due to a worn, bent, or loose blade. Replace the blade and tighten the blade bolt. Another potential cause is that the mower deck isn't level, so level the mower deck. Buildup of grass, leaves, or trash under the mower can also lead to an uneven cut, so clean the underside of the mower housing. Additionally, a bent blade mandrel can cause this issue, so replace the blade mandrel. Finally, check for clogged mower deck vent holes and clean around the mandrels to open them.
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flemingscottAug 30, 2025
Why my Husqvarna LTH1738 battery will not charge?
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  Jeremy SmithAug 30, 2025
  If your Husqvarna Lawn Mower battery will not charge, it could be due to bad battery cell(s), in which case you should replace the battery. Poor cable connections can also prevent charging, so check and clean all connections. If equipped, a faulty regulator or alternator could also be the cause, and you should replace them accordingly.
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Julie NelsonSep 2, 2025
What to do if my Husqvarna LTH1738 engine clicks but will not start?
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  zsanchezSep 2, 2025
  If your Husqvarna Lawn Mower engine clicks but doesn't start, the problem could stem from a weak or dead battery, so try recharging or replacing it. Corroded battery terminals can also cause this issue, so clean them thoroughly. Inspect the wiring for any loose connections or damage. If the problem persists, the solenoid or starter may be faulty and need to be checked or replaced.
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Dakota DennisSep 4, 2025
Why does my Husqvarna LTH1738 have excessive vibration?
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  Kelly GalvanSep 4, 2025
  If your Husqvarna Lawn Mower has excessive vibration, it may be due to a worn, bent, or loose blade. Replace the blade and tighten the blade bolt. Another cause could be a bent blade mandrel, which would also need replacement. Additionally, check for any loose or damaged parts and tighten or replace them as needed.
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Randy WrightSep 9, 2025
Why are the headlight(s) not working on my Husqvarna LTH1738?
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  Philip HaleSep 9, 2025
  If the headlight(s) on your Husqvarna Lawn Mower are not working, first ensure the switch is turned “ON”. If that doesn't solve the problem, check if the bulb(s) or lamp(s) have burned out and replace them as necessary. A faulty light switch could also be the cause, so check or replace it. Inspect the wiring and connections for any looseness or damage. Lastly, check if a fuse has blown and replace it if needed.
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Robert JacksonSep 12, 2025
Why Husqvarna LTH1738 blades will not rotate?
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  Sheila DuranSep 12, 2025
  If the mower blades on your Husqvarna Lawn Mower will not rotate, check for any obstruction in the clutch mechanism and remove it. Also, inspect the mower drive belt for wear or damage and replace it if necessary. A frozen idler pulley or a frozen blade mandrel can also cause this issue, so replace them accordingly.
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tammyriveraSep 14, 2025
Why does my Husqvarna LTH1738 Lawn Mower have loss of drive?
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  Francisco FletcherSep 14, 2025
  If your Husqvarna Lawn Mower experiences a loss of drive, first check that the freewheel control is in the “engaged” position. If equipped, check for debris on the steering plate. A worn, damaged, or broken motion drive belt can also cause this issue, so replace it. Additionally, air trapped in the transmission during shipment or servicing may be the cause; in this case, purge the transmission. Finally, check for a missing axle key and install one at the rear wheel if necessary.

Husqvarna LTH1738 Specifications

General

Cutting Width	38 inches
Transmission	Hydrostatic
Deck Material	Steel
Cutting Height	1.5 to 4 inches
Fuel Capacity	1.5 U.S. gallons
Speed Range	0 to 5.2 mph
Warranty	3 year limited