Tuesday, March 01, 2016

XTERRA TR250– How to calibrate the treadmill – Speed sensor adjustment for LS error - Treadmill running belt adjustment – Treadmill repair and service

Category: Treadmill Repair and Service 

Contents of this article 

  • Calibration procedure
  • Belt tension and tracking  
  • General Maintenance 


Zero out odometer and time
1. Take off tether
2. Press and hold START and SLOW, replace tether

If you want to set the Speed and Distance to Metric or if there is a problem with the speed or incline and you would like to perform the calibration procedure, use the Maintenance Mode. To enter Maintenance Mode press, and hold for 5 seconds, the Start and Fast keys while installing the safety key.
# In the bottom right corner of the display it will either be blank (for miles) or there will be Km (for kilometers) displayed. Press Fast or Slow buttons to change from one to the other. Press Enter.
# The large display window will now be showing the Roller size. Roller size is used for the calibration process and should be set to 1.85 for TR250 (2.35 for TR350)
# To run the calibration procedure, press the Enter key.
# The display will show a number for the lowest speed setting (for miles the number should be 0.5). Adjust the low speed setting with the Fast/Slow keys and press Enter.
# The display will show a number for the top speed setting (for Miles it should be 10.0). Adjust the top speed setting and press Enter.
# The display will show a number for the maximum incline setting (should be 10). Number can be adjusted with the Up and Down buttons. Press Start to begin calibration.
# The belt will start automatically and will adjust speeds between low and high. Be careful because the belt will change speeds without warning. When the calibration is finished the display will return to the start-up screen.
General Maintenance 
Belt and Bed - Your treadmill uses a very high-efficient low-friction bed. Performance is maximized when the bed is kept as clean as possible. Use a soft, damp cloth or paper towel to wipe the edge of the belt and the area between the belt edge and frame. Also reach as far as practical directly under the belt edge. This should be done once a month to extend belt and bed life. Use water only - no cleaners or abrasives. A mild soap and water solution along with a nylon scrub brush will clean the top of the textured belt. Allow to dry before using.
Belt Dust - This occurs during normal break-in or until the belt stabilizes. Wiping excess off with a damp cloth will minimize buildup.
General Cleaning - Dirt, dust, and pet hair can block air inlets and accumulate on the running belt. On a monthly basis, vacuum underneath your treadmill to prevent buildup. Once a year, you should remove the black motor hood and vacuum out dirt that may accumulate. UNPLUG POWER CORD BEFORE THIS TASK.
Treadbelt Tension Adjustment - Belt tension is not critical for most users. It is very important for joggers and runners in order to provide a smooth, steady running surface. Adjustment must be made from the right side of the rear roller in order to adjust tension with the 1/4” allen wrench provided in the parts package. The adjustment bolt is located at the end of the right side rail as noted in diagram below

Tighten the rear roller only enough to prevent slippage at the front roller. Turn the treadbelt tension adjusting bolt in increments of 1/4 turn and inspect for proper tension. When an adjustment is made to the belt tension, you must also make a tracking adjustment to compensate for the change in belt tension. This is accomplished by turning both the tension and tracking allen bolts an equal amount. This adjustment should be made by turning both bolts clockwise by no more than a 1/4 turn at a time.
DO NOT OVERTIGHTEN - Overtightening will cause belt damage and premature bearing failure.
The performance of your treadmill is dependent on the frame running on a reasonably level surface. If the frame is not level, the front and back roller cannot run parallel, and constant belt adjustment may be necessary. The treadmill is designed to keep the treadbelt reasonably centered while in use. It is normal for some belts to vary near a side while the belt is running with no one on it. After a few minutes of use, the treadbelt should have a tendency to center itself. If, during use, the belt continues to move toward one side, adjustments are necessary.
A 1/4” allen wrench is provided to adjust the rear roller. Make tracking adjustments from the left side only. Set belt speed at approximately 2 to 3 mph. A small adjustment can make a dramatic difference. Turn the bolt only a 1/4 turn and wait a few minutes for the belt to adjust itself. Continue to make 1/4 turns until the belt stabilizes in the center of the running deck.
The belt may require periodic tracking adjustment depending on use and walking/ running characteristics. Some users will affect tracking differently. Expect to make adjustments as required to center the treadbelt. Adjustments will become less of a maintenance concern as the belt is used. Proper belt tracking is an owner responsibility common with all treadmills.