Systematic Mechanical Troubleshooting - Stairmaster MOMENTUM 3400 CE Owner's Manual

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SYSTEMATIC MECHANICAL TROUBLESHOOTING
SYSTEMATIC MECHANICAL TROUBLESHOOTING
These steps should be performed in exactly the order written. Refer to the ·Parts
Removal and Replacement" section of this manual for any disassembly and
assembly instructions.
Page 42
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Remove the side covers.
Adjust the HTD belt so that the belt is positioned centered on the large
HTD pulley and the idler pulley assembly. VJrify that the belt is
tensioned so that it is tight enough that it does not ride off, and loose
enough that it doesn't bind the pUlleys. Retest the machine if HTD belt
adjustment was necessary.
Verify that thejam nut and bearing nut assemblies on the crank
assembly are tight.
Spin the crank assembly with the belt
remo~ed
and listen for any
clicking or grinding noises. The crank should spin freely 4or 5
revolutions. Resume troubleshooting at step 6 if no noises are heard.
Verify that thejam nut on the flywheel and the altemator is tight.
Adjust the speed sensor to .10" from the speed sensor disk.
Spin the altematorlflywheel assembly and listen for clicking and/or
grinding noises.
With the POly-v belt removed, inspect the Poly-V pulley for excess wear
and spin the pulley to check the Poly-V bea ings.
Disassemble the intermediate shaft assem Iyand inspect the
intermediate shaft for wear.
Inspect the POly-V belt for wear.
Contact our Customer Service Department or your local distributor for
assistance. Refer to the Appendix for
the
appropriate phone number.