Cybex 425T Treadmill Service Manual
Service
Page 4-10
Front Roller
9. Remove the front roller.
! WARNING: Drive belt is under tension. Do not pinch
fingers while releasing tension.
Tools Required
• 3/4” socket wrench
• 7/16” socket wrench
A. Release drive belt tension by placing a Phillips
head screwdriver into the square hole located in the
bottom of the idler pulley assembly. See Figure 10.
B. While pushing down on the Phillips head screwdriver
carefully slide the drive belt off of the drive motor
pulley. Slowly release tension on the idler pulley
assembly.
C. Using a 9/16” socket wrench loosen the right front
roller bolt. See Figure 11. NOTE: The right bolt will
stay on the front roller. You do not need to remove it
for this procedure.
D. Using a 9/16” socket wrench loosen the left front
roller bolt See Figure 11.
E. Remove the front roller.
10. Remove the running belt.
A. With the front and rear rollers out of the unit you can now remove the running belt.
11. Inspect the rubber mounts.
A. Inspect the rubber mounts under the deck stiffeners for cracks or wear. NOTE:
Unscrew and replace the rubber mounts if the rubber is cracked or worn.
Drive Belt
12. Remove the drive belt.
A. If you are changing the drive belt, slip the drive belt around the flywheel pulley and off
the motor.
13. Install the running belt.
A. Place the running belt in position on the unit. NOTE: It doesn’t matter which way the
running belt goes.
Figure 10
Square
Hole
Idler
Arm
Figure 11
Front
Roller
Bolt
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