How to Adjust an MTD Riding Mower Belt

How to Adjust an MTD Riding Mower Belt
If you closely inspect the leading of the mower deck on your MTD riding mower you will see a pulley mounted to a square plate. Attached to the square plate is a spring. This is the belt tensioning technique for your mower deck. It is named an idler pulley. As the belt wears and stretches, the spring on the idler pulley pulls the pulley against the belt and maintains stress. Nevertheless, the spring is only extended sufficiently to permit so considerably travel just before it runs out of adjustment. However, the only way to correctly tension the belt is with the idler pulley. For that reason, when the pulley runs out of adjustment, the only way to adjust the belt additional is to replace it with a new one particular.

How to Adjust an MTD Riding Mower Belt


  1. Park the MTD mower on level ground, set the parking brake and turn off the mower.
  2. Disengage the mower deck and decrease the mower deck to the ground.
  3. Disconnect the spark plug wire kind the spark plug to make certain the mower does not come on although functioning on it.
  4. Eliminate the guide pins that press into the PTO pulley bracket that rests just beneath the engine. Use pliers to take away the pins.
  5. Disconnect the extended spring that connects to the idler pulley with a spring puller to release tension on the belt.
  6. Pull the belt off the PTO pulley mounted below the engine.
  7. Eliminate the hairpins that hold the front bracket to the underside of the mower and then reduced the front of the mower to the ground.
  8. Pull the belt off the pulley method on the MTD mower deck. Adhere to the guide printed on the prime of the deck and set up the new belt per the routing on the guide.
  9. Lift the front of the mower deck up and reattach it to the underside of the mower with the hairpins.
  10. Location the belt onto the PTO pulley, then reconnect the spring to the idler pulley. Press the guide pins into the PTO mounting bracket.
  11. Reconnect the spark plug wire to the spark plug.

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