Sunny Health & Fitness SF-E2310 - Manual (Page 13)

MAINTENANCE
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22 33
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Version: Mar 10, 2014
After a period of time, the grease in the joint will become dry and it might
cause noise. Please follow instructions on how to lubricate the joint below:
Remove end caps (22), bolt (31) and nut (33) as diagram Ⅰ, then remove
spacer (30) as diagram Ⅱ, and add some grease on the surface and inside of
spacer (30) to decrease the rub, after finishing it, please assembly spacer
(30), bolt (31), nut (33) and end caps (22) back.
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