Yaheetech adjustable office chair is constructed of premium PU, sponge, steel and iron material, with solid structure holding up to 330 lb, sturdy and for long-term use. Height adjustable range is 36-45’’, which can meet your varied needs. 360°swiveling design is convenient for you to move the chair or fetch files/books, very practical. Stylish design makes it compatible seamlessly with any décor of occasion. This swivel office chair features ergonomic back frame with built in lumbar support, which provides improved lower back comfort.
Step 1: Disassemble the seat from the base with a screwdriver.
Step 2: Use a rubber hammer to tap on the center of the part that connects the seat and the air cylinder. Repeat 5-6 times until the air cylinder comes off the part.
Step 3: Turn over the base. Use the rubber hammer to tap on the center of the base to loosen and disassemble the air cylinder from the base.
NOTE: We recommend applying edible oil/engine oil/rust inhibitor to the connection between the air cylinder and the claw base for lubricating.
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