HOMCOM A90-290 Assembly & Instruction Manual page 13

Step 7: Join the upper body rotating armrest assembly ⑥at the upper end of the upper
main frame , and insert the screw with the wrench ⑨⑩ to tighten the double holes.
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Step 8: The installation is complete!
Note: The electronic watch can also be installed on the upper limb rotation pedal
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assembly ⑥ at your choice.
(18*50 screw is a spare screw)
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