Mechanical Troubleshooting - Stairmaster FreeClimber Systems Owner's Manual

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If you hear a grinding or clicking
exercise, or if the pedals are not functioning properly, you probably have a prob-
lem in the drive train. Attempt to isolate the problem area by performing the fol-
lowing tests in precisely the order listed
Replacement" section for all disassembly and assembly instructions.
1. Unplug the machine and remove the bottom side covers.
TO REDUCE THE RISK OF
WHILE THE COVERS ARE REMOVED.
ANYONE'SHANDS ARE INSIDE
Noise can be generated by a Poly-V or HTD belt that is either too tight
2.
or too loose. Check the condition and the tension of the
worn belts. Adjust the belt tension according to the instructions in the
"Parts Removal and Replacement"
Remove the Poly-V belt and move the pedal
3.
exists, check the condition of the alternator. If the noise
go to step #4.
• Disconnect the DC power cable
unplug the connector from position J4 on the power supply circuit
board if you have a 4600/4400 CL. Spin the alternator pulley with
your fingers. It should spin freely and remain spinning for at
two revolutions. If
• If the alternator does spin freely, check the alternator for noise,
roughness, or the presence of an excessive amount of black powder
inside the alternator or near the outside of the
conditions exist, the brushes might be bad and the alternator
should be replaced
• Do not reinstall
connector at position J4 or reconnect the DC power
as applicable.

MECHANICAL TROUBLESHOOTING

noise, or experience excessive vibration during
below. Refer to the
WARNING
INJURY, DO NOT OPERATE THE MACHINE
DO NOT DEPRESS OR RAISE THE PEDALS WHILE
THE MACHINE.
section.
arms.
if you have a 4600/4400/4200 PT or
it does not, the alternator should be replaced.
.
the Poly-V belt if performing step
"Parts Removal and
belts. Replace
If the noise no longer
is still present,
least
case. If any of these
#4. Plug in the
cable,
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