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How to Change the Self Propelled Belt on a Toro

A man wearing ear protection pushes a lawn mower across the grass toward the viewer.
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Mowing the lawn is a chore that some people enjoy and others detest. Whether or not you are looking forward to the work, there are few things more frustrating than starting your self-propelled lawn mower, only to find that it just doesn't move. Fortunately, if you own a mower made by Toro -- a popular brand that dates back to 1914 -- replacing the drive belt is a reasonably simple task.

Turn the mower on its side to access the belt cover, which is underneath the mower.

Remove the belt cover screws on the top side of the mower, then remove the cover.

Move the belt guide away from the driver assembly by removing one of the screws that hold it in place and loosening the other.

Remove the damaged or worn drive belt by first loosening it from the pulley, then pulling it from the bracket.

  • Mowing the lawn is a chore that some people enjoy and others detest.
  • Move the belt guide away from the driver assembly by removing one of the screws that hold it in place and loosening the other.

Run the replacement belt through the bracket, around the pulley.

Push the belt guide back into place, replace the screw you removed and tighten both screws.

Replace the belt cover, and secure it with the screws on the top side of the mower. Stand the mower upright again.

Tighten The Belt On A Self-propelled Troy-bilt Mower

Disconnect the spark plug wire at the front of the mower, siphon any excess fuel from the gas tank and verify that the oil dipstick is securely fastened to avoid oil leakage. Unfasten the blade retention bolt. Slide the blade off the mower. The baffle is the circular piece located beneath the blade. Remove the spring between the belt cover and transmission pulley, then remove the belt cover to expose the belt. If the belt has become slack due to age, you need to replace it.

  • Run the replacement belt through the bracket, around the pulley.

Warning

Disconnect the spark plug wire before beginning work, to ensure the mower does not start accidentally.

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