Input Drive Assembly Adjustment; About; Procedure - Precor Precision 400 Series Service Manual

Input Drive Assembly Adjustment

About

This procedure verifies that the input drive assembly components, the drive belt, the step-up
belt, and the eddy current magnet are correctly adjusted. All of the checks described in this
procedure must be performed to ensure proper operation. Do this procedure when the
machine drive system speed and resistance functions are not operating normally.

Procedure

1. Switch the power OFF and
2. Remove these rear drive covers: the drive cover access panel, top, left, and right
drive covers (see
3. Remove the left and right stairarms from the crankarms,
ment" on page 163.
Input Drive Assembly Alignment
4. Measure the distance from the crankarm to the side of the frame weldment for both
the left and right sides.
a. If the two measurements are different by more than 1/16 inch, you must use the
"pillow block bearing replacement tool" to adjust the input drive axle alignment.
Loosen, but do not remove, the left and right pillow block bolts (2x each)
enough to allow the input drive axle to slide left and right. Go to the "Pillow
Block Bearing Replacement" installation procedure to make alignment adjust-
ments, see
1
Disconnect a device power cord plug or cable connector from the power receptacle or out-
let.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
1
unplug the power cord.
"Covers and Panels Replacement" on
"Pillow Block Bearing Replacement" on
5 Adjustment Procedures
Input Drive Assembly Adjustment
page 75).
"Stairarm Assembly Replace-
page 155.
Page 69