MY HUSQVARNA YTH24K48 MOWER WILL BARELY MOVE FORWARD OR REVERSE. I CHECKED THE FREEWHEELING MECHANISM AND IT WAS WORKING PROPERLY. LOOKING UNDER THE MOWER AS WELL AS I COULD, IT SEEMED FINE.

so is a
Husqvarna YTH22V46 22-HP V-twin Hydrostatic 46-in Riding Lawn Mower

this is real name, and is mower not a car.
moved yah

jack it up and wiggle rear tires to free up box ?
brakes set?

Question edited for clarity, full 'make model (what it is)'.
Question moved from Cars and Trucks.

Some ideas here

https://www.google.com/search?q=Husqvarna+rz46i+drive+slipping

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Try to push in and hold the freewheel lever and rock the mower forward and backward. The bypass should click shut and the transaxle re-engage.

could be the belt, trans or the selector for disengagement is switched to push

Something caused the fan to disintegrate so you need to locate problem could be what ever caused problem is reason not working check for any levers etc. That are missing. If you have parts manual look at it if not go to Internet partstree.com and look up your model and see if everything looks as it should compared to diagram. It will be listed under integrated zero turn transaxle.

I will try to give you all information needed to fix the tractor. The first question is have you removed the rear wheels. The rear wheels have a square axle key that drive them. I have provided you with an image below showing the placement of the axle key.

If the axle key is in position, the next check to make is if the drive belt is still on. With the tractor on a level surfaced and the engine off look under the tractor at the drive belt. The belt should be free of slack and go around all of the pulleys.

If the belt is fine put the tractor in neutral and try to push it. If you can push the mower, you know the brake is not the problem. If you can not push the tractor the problem is likely a stuck brake. You will need to mover the break lever on the transaxle to see if it is sticking. If it is stuck you should be able to free it up by spraying a little WD-40 on the brake lever. Then work it back and forth.

Your tractor has a hydrostatic transaxle, I recommend you try to purge the air out of the system. The purging instructions can be found in your owner's manual and I have posed them below.

Next check the brake lever on the transaxle. If it has been sitting for a long period of time it might be stuck on. The lever is located on the right side of the tractor inside of the frame. I recommend working the lever back and forth to make sure it is moving freely.

When you are looking under the tractor, have someone move the shifter. When the shifter is moved, you should see the shifter on the transaxle move. If the shifter is properly attached, have someone start the tractor and let out on the brake. Now carefully look under the tractor at the Trans axle drive pulley. The drive pulley should be spinning. If the pulley is spinning, the problem is most likely a defective transaxle.

Maintanance - How to purge Hydraulic drive system Published 01/13/2010 11:56 AM ' Updated 06/02/2015 02:52 PM
How do I purge the hydraulic system?
Hydrostatic transmissions use oil, under pressure, to provide movement for the tractor. The fluid is pressurized with a pump inside the transmission. If any air is in the fluid, the pump will try to pressurize air. This condition is known as cavitation, and is detrimental to the pump since it allows the pump top operate dry. When the pump cavitates it is not pressurizing any fluid, so the transmission is not able to provide the movement needed.
If your mower is new, or has been stored for a long period (longer than 2 months) the transmission needs to be purged before use. Also, if you experience loss of drive, or slower response, then the transmission should be purged first.
The following procedure will remove trapped air inside the transmission(s).

IMPORTANT: SHOULD YOUR TRANSMISSION REQUIRE REMOVAL FOR SERVICE OR REPLACEMENT, IT SHOULD BE PURGED AFTER REINSTALLATION BEFORE OPERATING THE TRACTOR.
Step 1- Place the rear of the mower safely onto jackstands on a level surface with engine off and parking brake set.

Step 2- Disengage transmission by placing freewheel control, located at the back of the frame, in the freewheeling position.

2a- Mowers with seperate pumps and wheel motors the freewheel is activated by turnign the bypass valves, one on each pump, two full turns.
The oil resevoir needs to be filled to the specifications listed in the owners manual before starting the purge procedure.
Step 3- Sitting in the operators seat(riders), start engine. After the engine is running, move throttle control to slow position. With motion control levers in neutral (N) position, slowly disengage clutch/brake pedal.
Step 4-Move motion control levers to full forward position and hold for five (5) seconds. Move levers to full reverse position and hold for five (5) seconds. Repeat this procedure three (3) times.

NOTE: During this procedure there may be some movement of the drive wheels, but they are not under load. The air is being removed from hydraulic drive system.

Step 5-Move motion control levers to neutral (N) position. Shutoff engine and set parking brake. Check and add oil as needed for units with an oil resevoir.

Step 6-Engage transmission by placing freewheel control into driving position, or by closing the bypass valves on the pumps.
Step 7-Sitting in the operators seat, start engine. After the engine is running, move throttle control to full speed. With motion control levers in neutral (N) position, slowly disengage clutch/brake pedal.

Step 8-Slowly move motion control levers forward, after the tractor moves approximately five (5) feet, slowly move motion control levers to reverse position.
After the mower moves approximately five (5) feet return the motion control levers to the neutral (N) position. Repeat this procedure with the motion control levers three (3) times.

Step 9-Your mower is now purged and now ready for normal operation.For further information or assistance, we recommend contacting your lo

Transaxle lever out of adjustment.

Looks like this is a HydroGear transaxle. If this has happened over time, the axle may be bad. If it was sudden, I suggest checking the belt. If you have recently changed a tire, make sure the drive key was installed on the axle shaft.

the freewheel control is in the wrong position. push in all the way for mowing. This control is located on the rear of the mower below the seat.