The following describes the steps required to calibrate the lift motor on a Stairmaster (Quinton) ClubTrack.
- Enter service mode on the treadmill by using the following keys at the same time:
- Faster - Slower - Stop Belt
- Allow the lift motor to free spin by removing the bolts from the metal block on the jack screw.
- Press the up arrow on the control panel until the incline is at 5% then press the down arrow and take it back down to 0%. This will allow the lift motor rheostat to find its range.
- Spin the metal block on the jackscrew to allow 1 - 1.5 threads to be exposed from the top. Secure the lift motor back to the frame by inserting the 2 bolts through the bracket holes and into the metal block. NOTE: Double check the spacers on each side to make sure they are flush.
- Run the treadmill incline up to 15% and check the jackscrew to verify it has not bottomed out before reaching 15%. There should be around 4 - 6 threads exposed. Bring the treadmill back to 0% where there should be the same amount of threads exposed from the top of the jackscrew. If you see the correct amount of threads the lift motor is calibrated.
NOTE: If there is an error on the display panel, ex. E211, you need to manually turn the jackscrew back to 0%. To perform this unscrew the 2 bolts from the bracket securing the metal box and jackscrew allowing it to freespin. Use a shop rag or towel to wrap around the jackscrew to prevent damage to the threads. Using a pair of pliers (channel locks or vice grips recommended) manually turn the jackscrew back to 0%. Once this is accomplished run through the above steps to perform the calibration.
Quinton Treadmill Support How To Calibrate the Lift Motor