NOTE: Setting the gauge to a 3 reference value centers the gauge head travel allow-
ing +/- movement without impeding travel.
8. Alternately tighten the right and left take-up roller mounting bolts in increments of 0.2%
so that the roller is evenly tensioned to the final 0.55% (dial 3.55) specification as fol-
lows:
a. Tighten the right bolt to dial setting 3.2, then the left bolt to 3.2.
b. Tighten the right bolt to dial setting 3.4, then the left bolt to 3.4
c. Tighten the right bolt to dial setting 3.55 (0.55%), then the left bolt to 3.55 (0.55%)
9. Remove the tension gauges.
10. Re-install the drive belt .Install by walking the belt onto the larger drive roller pulley.
Make sure that the belt alignment is parallel to the frame rail, see "" on page 42.
Running Belt Tracking Adjustment
11. Start the treadmill and set the speed to 3 mph (5 kph).
12. Observe and verify that the running belt tracking remains centered, adjust as required:
a. If the belt starts to drift toward the right, slowly turn the right side Take-Up roller
mounting bolt clockwise in ¼ turn increments until the drifting stops.
b. If the belt starts to drift toward the left, slowly turn the right side Take-Up roller bolt
counterclockwise in ¼ turn increments until the drifting stops.
NOTE: 1) The tracking adjustments should only be done in 1/4 turn increments.
2) ONLY use the right side Take-Up roller mounting bolt to adjust tracking.
3) ONLY use hand tools to adjust tracking.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
Page 46
5 Adjustment Procedures
Running Belt Tension and Tracking Adjustment
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