b. Use a 1/2" wrench to adjust the drive belt tension adjustment bolt as needed to
set the belt tension to the calibration tension specification. Monitor the tension
gauge value while making adjustments. Slide the motor forward to tighten the
tension and rearward to loosen the tension.
c. Remove the tension gauge. Then manually push the running belt so that the
drive belt moves several rotations around the drive roller and drive motor pul-
leys. Then remeasure and verify that the belt tension remained within spe-
cification. If the belt tension has changed, repeat the tension adjustment
procedure until the belt tension remains within specification.
Belt Condition
Calibration Belt Tension
New
110 lbs +/- 10 (50 kgs +/- 4.5)
Used
85 lbs +/- 5 (39 kgs +/- 2)
CAUTION
: Only make small incremental changes to the motor position per ten-
sion adjustment. Do not over tension the belt which could cause damage to the
belt or motor pulley mechanism.
8. Remove the tension gauge.
9. Fully tighten the four 1/2" hex head motor mount bolts and torque to specification 204
in-lbs (17 ft-lbs, 23 N-m).
10. Switch the input power
ON
.
11. Select
QUICKSTART
and operate the treadmill at 3 mph (5 kph) for 1 minute.
12. Stop the workout and switch the input power
OFF
.
13. Remeasure the belt tension and verify that the tension remained within specification.
If not within specification, repeat the belt tension adjustment procedure until the belt
tension remains within specification.
Belt Condition
Drive Belt Tension
New
100-120 lbs (45-54 kgs)
Used
80-90 lbs (36-41 kgs)
14. Verify that the Drive Belt alignment remains properly aligned and has not moved out
of alignment during the tension adjustment process, see
15. Reinstall the hood cover, see
"Hood Cover Replacement" on page 88
16. Switch the input power
ON
.
17. Verify operation and return to service, see
"Operation Verification" on page 24
).
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
Page 65
5 Adjustment Procedures
Drive Belt Tension and Alignment Adjustment