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How to Install a Spring Brake on a Toro Snow Blower

Gasoline-powered Toro snow blowers such as the Power Clear 621 use a drive-belt system to operate the mower’s engine. To keep the drive belt from slipping whenever you stop pushing, the snow blower uses a tension spring as a brake. If you start your Toro snow blower and it isn’t moving forward or braking properly, you could have a problem with the spring. It might be disconnected or worn out, which will require replacement.

Things You'll Need

  • Small socket set
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Instructions

    • 1

      Park the snow thrower on a level surface.

    • 2

      Remove the drive belt cover by unscrewing the three bolts with your socket set.

    • 3

      Locate the idler pulley, which is toward the top of the drive belt cover and next to the engine pulley.

    • 4

      Hook the spring onto its attachment housing next to the bolt hole across from the idler pulley.

    • 5

      Put one hand on the pulley to keep it still and attach the other end of the spring to the idler arm.