How to Adjust a LiftMaster Motor So the Belt Fits - DDM Garage Doors Blog

Posted December 11th, 2020 at 6:33 pm by Dan Musick

Customers sometimes ask if they can substitute a different v-belt for their operator. In this video, we demonstrate how to adjust a LiftMaster motor, so the belt fits properly, even if it is a different length.

If a v-belt is too tight or too loose, you can adjust the motor to get the proper fit.

Here are the steps for adjusting a LiftMaster motor so the v-belt fits properly.

  1. Unplug the power or flip the circuit breaker.
  2. Loosen the four bolts that secure the motor frame to the operator frame. Loosen the nuts just enough to allow the motor to slide.
  3. Install the new belt.
  4. Raise and lower the motor as needed for the belt to fit snugly, but not too tightly.
  5. Align the motor pulley, v-belt, and the larger clutch pulley.
  6. Level the motor.
  7. Tighten the four nuts and bolts.
  8. Restore the power and test the operator.

This entry was filed under News. You can follow any responses to this entry through the RSS 2.0 feed.

Comments are closed.

«
»

Unmatched Support. The Right Part. DIY with Confidence!

YES, WE'RE OPEN FOR BUSINESS! DDM is considered a life-sustaining company because we are an internet retail company that provides essential products. Due to the recent outbreak of Coronavirus, however, we are changing our local order pickup policy at our West Chicago location. To pick up an order you will need to order first. The quickest way is to order in advance through our online shopping cart. There you can select the local pickup option. Or, you can call 630-293-1337 for assistance, to confirm availability of parts, and to place your order. Once ordered, your parts will be available for pickup in the lobby of our north side front entrance. Longer items will be picked up on the south side loading dock. Please honor the six foot social distancing rule. Thank you for your patience and understanding as we all navigate this challenge together. More information is available on our blog titled DDM Adjusts to the COVID-19 Coronavirus. In the same article you will also find documentation and an answer to the question: "Is a garage door repair company a life sustaining business?"

PLEASE NOTE: DUE TO COVID-19 SHIPPING TIMES ARE NOT GUARANTEED, EVEN ON NEXT DAY AND SECOND DAY SHIPMENTS. NORMAL TRANSIT TIMES DO NOT APPLY.