How to route drive belt on toro wheel horse tractor model 260 on pulley

The belt part number is Toro 93-3884. Just search google for this part number.
They are around $50-60.Also you can purchase from sears . com
or here: http://www.m-and-d.com/TOR-93-3884.html?mv_pc=00015
J

You may need a new one. If that doesn't work you may have a bent pulley that's cause it to jump off or the barrings in one of your pulleys may be bad which would cause the pulley to wobble therefore throwing the belt off.

You can go here and get a manual. Theres a $2 charge but it's worth it and will certainly help you.

The belt or linkage is mal-adjusted or the belt is sticky and will not slip when the clutch pedal is depressed

The problem sounds like the tranny if the belt is correct.Thanks for asking and I hope it helps.

How to replace the drive belt on a Toro LX466 Lawn Tractor

1. Jack up the front of the mower-place a couple of blocks under the front wheels (retaining wall blocks from your flower bed work great). Block the back wheels so the mower won't roll off the front blocks.

1. Remove the battery and battery compartment from under the seat. You can now see the cooling fan blade under the seat. The belt runs from the pulley directly under the fan to the front of the tractor.
   

2. Lower the mower deck to its lowest position. Remove the deck hanger rod from the slots in the front of the mower deck.
   

3. Remove the metal rod guard below the engine pulley. It's held in place on one side with a bolt, and the other side with a cotter pin.
   

4. Take a large pair of channel lock pliers (about 18 in long work great) and clamp them down directly on the engine pulley, but not so tightly you distort the pulley.
   

5. Remove the bolt from the pulley. It's a right-handed bolt, so turn it counter-clockwise to remove.
   

6. Slide the pulley down the shaft until you can work the belt off. If the belt is too tight, then remove the spring from the idler pulley under the tractor. It's hooked on a bolt near the side of the tractor. You can remove it by grabbing the end of the spring with a pair of needle-nose vise-grips and slipping the end off the bolt. Then remove the old belt from the tractor.
   

7. Take a new belt (preferably Kevlar) and start at the back of the tractor (with the pulley under the cooling fan) and thread it through to the front of the tractor. The flat side of the belt rests against the idler pulley with the flat sides.
   

8. Work the belt over the engine pulley and slide it back on the shaft. Tighten the bolt on the engine pulley hand tight. Then check the belt to make sure it hasn't slipped out of the groove on the cooling fan pulley.
   

9. Clamp the engine pulley with the channel lock pliers and tighten the bolt.
   

10. Make sure the belt is routed correctly on the idler pulleys. If you had to remove the spring on the idler pulley, replace it. You can do this by grabbing it with the needle-nose vise-grips and placing it on the bolt-make sure it's above the washer. Then remove the vise-grips and gently pry it over with a small screwdriver until it slips into place.
    

11. Replace the metal guard below the engine pulley. Hook the mower deck back onto the deck hanger. Replace the battery compartment and battery. Unblock the mower.
    

need the ser number of the unit. the pulley don't split its one part, i need the ser number . this is no easy job. good luck

For removing/replacing the deck belt, the general method is:

1. turn off engine, remove key and set parking brake
2. disengage blade by putting blade engage lever into off (disengaged) position
3. lower the cutting deck to the lowest position (closest to the ground)
4. relieve the belt tension (depending on the model, use a 3/8 inch ratchet set to tighten in the square hole of the idler bracket)
5. remove and replace the belt

NOTE: it's not necessary to completely remove the cutting deck.

Useful diagrams for removing the cutting deck, http://216.213.143.2/ProAuthor/ManProc.cfm?ManualID=425&ProcID=14794

For deck belt diagrams, http://216.213.143.2/ProAuthor/ManProc.cfm?ManualID=425&ProcID=14796

If the transmission drive belt needs to be replaced, several components must be removed and special tools (i.e. air/impact wrench) used in order to change the tractor's transmission drive belt. See an Authorized Toro Service Dealer to have your drive belt replaced.

You will have to disconnect the deck from the tractor. There might be some rods hanging down by the pulley on the motor. You have to loosen those not remove. Then install the new belt with the inside of belt (V) into the pulleys. The outside of belt (flat side) goes up against any idlers (oversized pulleys). Once you get the belt routed properly the belt will be snug in the pulleys. If you have excess play you have to use trial and error to get the belt routed the right way around the idlers.
Once belt is on reattach the deck and tighten the rods by the motor that keeps the belt from comming off. They need to be close but not touching the engine pulley.

Good luck and let me know if this helps.

roundo4

I hate to tell you this,but not much you can do. I had a toro wheel horse 12.5 hp the drive belt would slip,made it a little better by putting on new belt w/belt dressing,but would still do it especially under load or up hill,or starting in higher gear. Unfortanately,it was one of toros downfalls on a lot of models,and FYI if you think altering the tension pulley to hold the belt back more will solve it,your wrong,all that will do is make you lose use of your clutch.