Husqvarna Riding Mower Won’t Move Forward Or Reverse – What To Do Now?

Can’t figure out why your Husqvarna riding mower won’t move forward or reverse? Sometimes all it takes is a simple fix, but if the problem lies within the transmission, your Husqvarna riding mower can be harder to fix and will cost more.

Husqvarna lawnmowers won’t move forward or backward for many reasons. It can be caused by a worn-out belt, low level of hydraulic fluid, missing axle key, and whatnot.

Turn off your Husqvarna and disconnect the spark cord before you work on it. Be very careful when working near a hot transmission. Carefully determine the cause and take measures accordingly.

Husqvarna Riding Mower Won't Move Forward Or Reverse

Why Won’t Your Husqvarna Riding Mower Move Forward or Reverse?

If your Husqvarna riding lawn mower won’t move forward or backward, what you can do is, try a few fixing ideas. First, make sure the transmission is where it should be. If your riding mower’s gearbox is misplaced, then the riding mower won’t move.

Check the mower’s drive belt to see if it’s broken or if it’s come off the pulleys. Replace the drive belt if it isn’t working right.

Last but not the least, check to see how much hydrostatic fluid is left in the tank. If there isn’t enough fluid in the mower, it won’t move.

Reasons Why Your Husqvarna Riding Mower Won’t Move Forward or Reverse.

What are the possible reasons of your Husqvarna mower not moving back and forth? Once you find out the reason, you can easily find out what you can do about it. That’s why we’ve made a list of possible reasons and solutions.

The Bypass Lever of Your Husqvarna Mower’s Manual Transmission is Not Working

Husqvarna lawnmowers with hydrostatic transmissions use fluid to move the drive wheels. The wheels run by pumping this fluid. To fix this problem, you can push the riding mower by hand using this lever transmission bypass.

When you’re using the lever to move your mower manually, let go of the bypass when you’re done so that the hydrostatic transmission runs the wheels in the right direction. You have to turn on the gearbox otherwise your Husqvarna won’t move.

Fallen Drive Belt

See if the drive belt has come loose from the pulleys. If the belt on your mower is worn-out, it might slip upon the pulleys and make it move sluggishly. If it falls off your mower’s pulleys, it won’t move at all.

If this is the case, the remedy is simple. When you find your mower’s drive belt broken or worn out, you should get a new one.

 A Moving Drive Belt

Check to see if your mower’s drive belt has been worn and if it is going around the mower pulleys in the right way. Change the broken or worn-out belts. The belts need to fit tightly to the pulleys as well as the belt guards.

If you find your mower’s drive belt fallen, check the pulleys and make sure that they are in good shape and the belt guards are not damaged or misplaced.

Lost Axle Key?

If you just changed the tire of your Husqvarna riding lawn mower, you might have lost a small key. This key looks like a long, thin bar. It’s called the “Axle key”. You must find it and put it in before you try to move the wheels. If you cannot find the key then go to your nearby hardware shop where Husqvarna parts are sold and ask them to help you out.

The “Idler Arm Spring” on Your Husqvarna is Missing or Worn.

The idler spring’s duty is to tighten the drive belt. You must replace the spring if it is damaged, missing, or strained. Don’t forget to grease your mower’s tensioner arm so that it can move forward and reverse without getting stuck.

The Hydraulic Fluid of Your Husqvarna Mower is Running on Low or The Oil is Outdated.

To keep your transmission system functioning smoothly, you must keep track of the hydraulic fluid. Is your Husqvarna riding mower running out of hydraulic oil? Or maybe the oil has been there for too long.

If your Husqvarna mower’s hydraulic oil is very old or the quantity is very low, your mower won’t move forward or reverse. In this case, pour clean, fresh hydraulic oil into your mower. However, some Husqvarna riding mower transmission systems are bolted and cannot be repaired.

In this case, you cannot change the hydraulic oil. Look up your owner’s handbook to understand whether your gearbox requires frequent maintenance. If the gearbox of your Husqvarna mower is up and working, all you need to do is replace the hydraulic fluid by the end of the specified period in the manual.

Be sure to change the hydraulic oil first before you fix other parts of your mower. If your mower’s hydraulic oil has gone cold, add extra hydro fluid until it rises to its maximum. Also, check to see whether the fluid level is low due to a leak in the hydraulic fluid chamber. If your Husqvarna riding mower’s hydraulic tank is leaking, call professionals to deal with it without any delay.

Heated Hydraulic Fluid Can Cause Your Husqvarna Mower Not to Move.

When you use your Husqvarna riding mower with unclean or insufficient hydraulic fluid and the oil is unable to lubricate the mower’s hydraulic system the way it should, the additional friction overheats the hydraulic oil.

If the oil gets overheated, the mower becomes unable to move. Heated hydraulic fluid will potentially cause more serious damage. If the lawn mower doesn’t operate properly while it’s heated but works fine when it’s cold, get your mower’s gearbox checked by an expert.

Air in Your Husqvarna Lawn Mower’s Hydraulic System

Your Husqvarna lawn mower may move slowly or not move at all if the transmission is filled with air more than there should be. You must get rid of the air from your Husqvarna gearbox.

Place the gearbox on a flat surface. Take wheel chocks and put them on the mower’s front wheels so that it stays still. Lift the tires of the back drive by using jack stands. Spin the tires back and forth until the weird sound stops and the wheels start moving at a consistent pace.

Take a look at the operator’s handbook for a better understanding according to your Husqvarna mower model. If yours is a zero-turn mower, then you need to be using drive-releasing handles on the rear to open the bypass valve. What you have to do is,

  • Restart the mower, and increase the engine to a fast stop while releasing the brake pedal.
  • To remove the air from the system, move the driving levers back and forth about six times.
  • Shut your mower down and press the brake pedal.
  • Shut the bypass valve. You need to repeat the process again.
  • Restart your mower, disengage the brake pedal, and move back and forth using the drive levers for forward and reverse. Continue repeating this process until your mower’s gearbox stops generating abnormal noise as well as the wheels travel at the exact pace.
  • Seek help from the operator’s handbook for a clearer idea according to your Husqvarna model.

Clogged Carburetor or Blocked Fuel Lines

Have you looked at all the possible reasons why your Husqvarna riding mower won’t move forward or reverse? But all of the reasons stated above have nothing to do with your mower not working. In this case, check the fuel filter. it’s possible that your mower isn’t moving because its fuel lines are blocked or the carburetor is clogged. In this case, it’s best to call a professional instead of doing this all on your own.

Final Words

The Husqvarna riding mower won’t move forward or reverse? Isn’t that the most annoying thing ever? If your riding mower isn’t moving back or forth, then we’d suggest you find the reason behind it and then come up with a solution.

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