Service manual

Page 5-10
Cybex SOOT Treadmill Service Manual
c. Replace the two washers and bolt that hold the flywheel in place. Tighten the bolt.
Motor Brush
NOTE: If you are not replacing the motor brushes skip to step 14.
NOTE: When IIBrush II scrolls across screen it indicates motor brush wear. The treadmill
will run 100 miles
(161 kilometers) longer and then shutdown with Err9.
NOTE: It is recommended that both drive motor brushes be replaced as a pair. This will
ensure even commutator contact
and brush wear.
9. Remove the drive motor access panels.
A. Unscrew the two Phillips head screws on each motor access panel.
10. Remove the motor brushes.
A. Loosen, but don't remove, the top Phillips head screws and remove the red brush
wires. See Figure 10.
B. Unplug the yellow brush wear indicator wire on the brush that is toward the motor
lead exit. See Figure 10. This brush wears 20% faster than the other brush.
! CAUTION: The spring will be loose and could fall into the motor or be lost.
C. Press the brush holder bracket in and to the center. Slowly pull the bracket and
spring out. It will be spring loaded. Set the bracket and the spring aside. The brush
can now be removed from the drive motor.
11. Examine the brushes and commutator.
A. Examine for signs of wear such as arcing, pitting, burning, or uneven wear.
Replace brush if it shows signs
of excessive wear andlor is cracked or broken.
NOTE: The motor brush must be replaced if it is worn to 518
11
(.625 cm) or less in length
or if brush indicator wire is exposed.
12. Replace the brushes.
A. Slide the brushes (new or original) into the motor brush holder.
B. Place the red brush wires under each Phillips head screw. Tighten each screw.
Connect the yellow brush wear indicator wire
in the access panel nearest the
motor lead exit.