Lubrication
of the piston used for servo opening and closing of the treadmill
should be performed every 2000 hours of use or every 3/4 years.
1)
disconnect the power supply to the treadmill
2)
close it upright
3)
apply a very light lubricant to the piston rod (metal part)
4)
open and close a dozen times to ensure that the lubricant enters the
piston
5) clean excess
lubricant
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