How to Replace a Belt on a Craftsman Mower 46-Inch 18.5 Horsepower

Riding mowers have a belt that runs from the front of the machine to the mower deck. The belt controls the motion of the mower blades. The belt on your Craftsman 46-inch, 18.5 HP machine will eventually wear out, stretch and break. According to the owner's manual, the 46-inch Craftsman mower deck cannot be adjusted. When the belt wears down it needs to be replaced completely. Contact Craftsman for a new belt.

Screwdriver
Digital camera

Instructions

- 1
  Move the Craftsman mower to a flat area. Engage the parking brake and disconnect the spark plug by pulling on the spark plug wire.
- 2
  Lower the mower deck using the deck adjustment lever.
- 3
  Remove the four screws from the cover on the mower deck using a screwdriver.
- 4
  Take a picture using a digital camera or your mobile phone so that you can remember the orientation of the belt running along the mower deck.
- 5
  Pull on the belt at the pulley underneath the engine of the mower to release the tension on the mower deck. Guide the belt off the mower deck pulleys.
- 6
  Install the new belt on the pulleys on the deck in the same orientation as in the picture.
- 7
  Replace the mandrel cover and the spark plug wire. Test the mower.

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