CAUTION:îOnly make small incremental changes to motor position per tension
adjustment. Do not over tension the belt which could cause damage to the belt or
motor pulley mechanism.
6. Re-tighten the four motor mount fasteners and torque to specification 204 in-lbs (17 ft-
lbs, 23 N-m).
7. Reinstall drive belt. Place Drive Belt onto the motor pulley and walk the belt onto the
Roller pulley. You can use your free hand to move the motor flywheel to rotate the motor
pulley and drive belt.
8. Place the tension gauge onto the belt and remeasure the tension.
a. If the tension measurement does not meet the Calibration Belt Tension spe-
cification, repeat the tension adjustment process until the measured tension is
within the Calibration Belt Tension specification.
9. Connect the power cord and switch the input power ON.
10. Run the treadmill speed at 3 mph (5 kph) for 1 minute.
11. Switch the input power OFF and unplug the power cord.
12. Remeasure the belt tension and verify that the tension remains within the Verification
Belt Tension specification. If not within specification, make adjustments as needed, see
"Belt tension calibration adjustment " on the previous page.
Belt Condition Verification Belt Tension
New 100-120 lbs (45-54 kgs)
Used 80-90 lbs (36-41 kgs)
13. Verify that the Drive Belt alignment is correct and has not moved out of alignment, see
"Drive Belt Tension and Alignment Adjustment" on pageî51.
Operation verification
14. Reinstall the hood cover.
15. Connect the power cord and switch the input power ON.
16. Do the Operation Verification tests (see "Operation Verification" on pageî19) and return
to service.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
Page 54
5 Adjustment Procedures
Drive Belt Tension and Alignment Adjustment
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