With lots of time and patience. This may not be the easy way or only way but here is what I did:
1. remove mower deck
2. placed jack stands under each of the 4 corners of the mower
3. removed side fenders
4. removed wheels
5. removed transaxle sub-assembly
6. removed engine to jack-shaft belt
7. removed electric PTO clutch
8. removed transaxle drive belt tension spring
9. removed and replaced transmission drive belt
10. replaced electric PTO clutch
11. replaced engine to jack shaft belt (after all this work I replaced all 3 belts)
12. reinstalled transxle sub-assembly, wheels, fenders and mower deck.
DONE, purrs like a kitten.
To replace the drive belt on an Ariens snowblower, first, ensure the machine is turned off and disconnected from the power source. Remove the outer cover by unscrewing it, then take off the old belt by releasing the tension and sliding it off the pulleys. Install the new belt by threading it around the pulleys and ensuring it's properly seated. Finally, reassemble the cover and test the snowblower to ensure the belt is functioning correctly.
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Impossible to answer without knowing year, make & model, of mower.
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