Snow Blowers power-brush

Published on November 17th, 2016 | by Brandon

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How to Replace the Attachment Drive Belt on Your Ariens Power Brush

Inspect all aspects of your machine to ensure that it is operating as intended. Belts can often become stretched, torn, and worn. A damaged belt can cause greater damage to a piece of equipment if left unattended.

These instructions are specifically for the Ariens 921 series brushes. Always consult and be familiar with your owner’s manual for information specific to your unit. Take the proper safety precautions laid out in your manual when working on your equipment.

  1. Turn the engine off.
  2. Disconnect spark plug wire. Allow your unit to cool down completely.
  3. Remove the hardware that is attaching the remote trigger cable to the brush assembly.
  4. Unscrew and remove the two screws that are securing the belt cover to the unit.
  5. Remove the belt cover.
  6. Remove the cap screws that are mounting the belt finger to engine.
  7. Remove the belt finger.
  8. Take the attachment drive belt off of the engine sheave. To do this, you may have to turn the engine sheave using the recoil starter handle).
  9. Provide support to the frame and housing.
  10. Unscrew and remove the two cap screws on each side that are securing the brush assembly to the frame.
  11. Detach the brush assembly from the unit.
  12. Lower the handlebar onto the floor.
  13. Take the attachment drive belt off of the lower pulley.
  14. Put the new belt onto the lower pulley. Hold the brake out of way and tip unit together.
  15. Reattach the cap screws to secure the brush assembly to frame.
  16. Place the belt onto engine sheave.
  17. Remount the belt finger.
  18. Engage the clutch lever. The belt finger that is on the opposite side of the the belt idler must be less than 1/8 in. (3.18 mm) from the belt, but not touching the belt. If it is touching, belt grabbing can occur which will cause the impeller to rotate while the attachment clutch is not engaged.

  19. Adjust clutch if needed.
  20. Reattach the belt cover and secure it with the cap screws that were previously removed.

For information about safety, warranty, and your specific model, read and be familiar with your owner’s manual.

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