Want to get a manuel for lawn mower, for lt1046, i have to replace one gear, a belt, and lawn mower wheel.

check to see if the key in the axle is in place or if you put it in gear the axle turns in the wheel . is the pulley in place and not loose. the belt is good you said. but the pulley may be stripped. (axle key, belt, pulleys, or belt off of pulley)

if you take the deck of first you can see it better take circlip off bottom of steering gear lift steering wheel up a little bit and fit new belt

Some have gear in each wheel. Remove wheel see if plastic in wheel is worn out. Home Depot or Lowes carries some replacement wheels. Lawn mower repair shops sell them also.

the inside edge of the wheel is a gear that the drives off the shaft

i would check the belt for oil or slipping the check rear axle fluid level

Sorry it has taken so long to reply, busy time of year. It is very possible the wheel bearings are going bad, but you should notice it at all times. Some lawn and garden tractor front wheels are that way for steering. The John Deere lawn tractors are toed in for example. Wouldn't hurt to check the wheel bearings as well as the spindle bearings. They should all be greasable, and if the issue is better after greasing, you have found your problem. If not, let me know and I will see what else I can come up with, Daniel.

http://www.cubcadet.info/Manuels/2005/Tracteurs/LT1042-LT1045-LT1046-LT1050-Owner.pdf
Let me know how you made out!

Use the link below to download the manual for free.
http://www.cubcadet.info/Manuels/2005/Tracteurs/LT1042-LT1045-LT1046-LT1050-Owner.pdf

Remove the drive wheels and have a look at the gear teeth in them. If even slightly worn, they need replacing. If you run the mower with the wheels off, that end elevated with a block, see if the axle turns when you engage the drive. If it does, your transmission is fine. Wheels are a lot easier to change than a tranny.

check your gear train to the wheels and the wheel hub gears