1. To avoid scratching, it is recommended that you wear gloves to install.<br>2. When installing each step, please do not put all the screws in place, and then twist the screws one by one.<br>3. The small iron block on the wheel should not be taken down, is directly stuffed into it, if the strength is not enough, you can use a rubber hammer to knock in.<br>4. After installation, if the chair can not lift, because the air pressure lift bar and the chassis under the cushion is not tightly covered. So sit hard a few more times on it.
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