I have a husqvarna CZ4817 the lawn mower quit moving in forward or reverse, so I did what you suggested and I checked the drive belt, it was fine but the plastic fan under my tension pulley was shredded. What would cause that? And would that cause the mower to quit moving?

SOURCE: Hydrostatic mower goes in reverse but not forward. Only 73 hrs on it!

On my hydrostatic there is an adjustment on the forward/back lever which can be made to run all reverse or all forward. Normal setting gives both of course. Look at that adjustment. Maybe something let go.

SOURCE: Crankshaft pulley (vibration damper) moved forward.

the pulley is also a dampener often times they seperate from each other. replace pulley/dampener.

SOURCE: drive belt

You may find that you have the wrong belt - I bought a belt for the correct model and then found that there are two different sizes depending on the exact model - they are 3 inches different in length for my model CTH160 113" and 110". Got correct belt and fits properly now.

SOURCE: wont move forward or reverse-- transmission??

Does it have gears or a hydrostatic (automatic) transmission?

If it's a gear model, sounds like a loose drive belt.

If it's hydrostatic, it could be a belt problem or a problem inside the transmission. If it's a tranmission problem, this is not good. Many of the transmissions on riding lawn mowers are not serviceable - they are just replaced.

Kelly

• 3740 Answers
• Posted on Mar 29, 2010

SOURCE: lawn mower has hydro gear transaxle reverse was

Most of the time when this happens the reverse shift linkage is too short. It is usually cause by either a bent linkage or worn linkage bushings.

The internal shifting fork can be bent inside the transmission which is rare but does occasionally happen... most of the time it is a linkage problem. Also check on the side of the transmission to make sure the shifting lever has not moved from the original position on the Yoke shaft.

Thanks for using FixYa.

Kelly