How to Adjust the Deck on a Murray Lawn Mower


A Murray lawnmower's deck will probably need adjustment after a long season of mowing the lawn. If the deck is even slightly off level, your lawn will have an uneven cut. Adjusting the deck at home is easy and will save you money while also eliminating the hassle of waiting for a repairman.

Things You'll Need

  • 3/8-inch wrench
  • Place the mower on a hard, flat surface.

  • Adjust the cutting height lever, which is located to the left of driver's seat, all the way down to the last notch. This will engage the motor's level-adjustment position, which will allow you to easily adjust the mower deck.

  • Move to the left side of the mower. The mower's left adjustment knob is located on the deck arm that is connected to the frame directly behind the front tire. Use a 3/8-inch wrench to loosen the black adjuster by turning it counter-clockwise. Reposition the pin to by sliding it up or down. Once the deck look even, screw it tightly by turning the knob clockwise with the wrench.

  • Move to the right side of the mower. Look for the right adjustment knob located on the same section as the left side.

  • Reposition the deck adjuster lever to a cutting height deck. The mower will now be ready to cut.

Tips & Warnings

  • If you have large, plastic wheels attached to the deck, they will have to be removed with the 3/8-inch wrench before you can adjust the deck itself.
  • Check the tire pressure. Low pressure could throw off the mower's deck adjustment.

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  • Photo Credit green grass image by Christophe Fouquin from
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