Stairmaster 7000 manual Troubleshooting the Drive Train

TROUBLESHOOTING THE DRIVE TRAIN

If you hear a grinding or clicking noise, or experience excessive vibration during exercise, or if the steps are not functioning properly, you probably have a problem in the drive train. Attempt to isolate the problem area by performing the following tests in precisely the order listed below. Refer to the “Parts Removal and Replacement” Section of this Manual for all disassembly and assembly instructions.

1.Unplug the power supply from the AC wall outlet and remove the side covers.

!WARNING

TO REDUCE THE RISK OF INJURY, DO NOT OPERATE THE MACHINE

WHILE THE SIDE COVERS ARE REMOVED. DO NOT ROTATE THE STAIRS

WHILE ANYONE'S HANDS ARE INSIDE THE MACHINE.

2.Check the condition and the tension level of the Poly-V belt. Replace the belt if it is excessively worn.

a.Adjust the tension level so that you can deflect either side of the belt 1/10" (0.3 cm) at the center between the alternator and the transmis sion pulleys (See Drawing Below). Noise can be generated by a belt that is too tight or too loose.

b.If the noise is still present, remove the Poly-V belt and rotate the staircase without standing on it. With the Poly-V belt removed, the staircase will rotate very quickly.

c.If the noise no longer exists, replace the alternator.

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