Yaheetech 592328 Ergonomic Office Chair

Step 1: Assemble the Base

Insert caster wheels (②) into the base star (①). Attach the seat mechanism (⑤) to the base star (①) using screws (B) and washers (D). Insert the gas lift cylinder (③) into the seat mechanism (⑤).

[Diagram shows the base star with five caster wheels inserted. The seat mechanism is shown being attached to the base star with screws and washers. The gas lift cylinder is shown being inserted into the seat mechanism.]

Step 2: Attach Gas Lift Cover

Insert the gas lift cover (④) onto the gas lift cylinder (③).

[Diagram shows the gas lift cover (④) being placed over the gas lift cylinder (③) which is attached to the base.]

Step 3: Attach Seat Cushion and Armrests

Attach the seat cushion (⑥) to the seat mechanism (⑤) using screws (A) and washers (D). Attach the armrests (⑦) to the seat mechanism (⑤) using screws (B) and washers (D).

[Diagram shows the seat cushion (⑥) attached to the seat mechanism (⑤) with screws (A) and washers (D). Armrests (⑦) are attached to the sides of the seat mechanism (⑤) with screws (B) and washers (D). The diagram indicates left and right armrests.]

Step 4: Attach Seat Assembly to Base

Attach the assembled seat unit (from Step 3) to the base with the gas lift cylinder (from Step 1 & 2). Ensure screws are half-tightened initially.

[Diagram shows the assembled seat unit being placed onto the base assembly. The label "↑ FRONT" indicates the front of the chair.]

Step 5: Attach Backrest

Attach the backrest (⑧) to the seat mechanism assembly using screws (A) and washers (D), and screws (G) and washers (D).

[Diagram shows the backrest (⑧) being attached to the seat assembly using screws (A) and washers (D) on one side, and screws (G) and washers (D) on the other.]

Step 6: Attach Headrest

Attach the headrest (⑨) to the backrest (⑧) using screws (A) and washers (D).

[Diagram shows the headrest (⑨) being attached to the top of the backrest (⑧) using screws (A) and washers (D). The diagram includes visual cues for clip attachment.]

Step 7: Final Assembly

Place the assembled chair onto the base with the gas lift cylinder.

[Diagram shows the completed chair assembly being placed onto the base unit.]

Step 8: Adjustments

The chair height and armrests can be adjusted. [Diagram shows the chair with arrows indicating adjustable height and armrests.]

Step 9: Adjusting Seat Height

When lowering the seat height, ensure you are sitting fully on the seat to apply sufficient pressure for the gas lift to function. [Diagram shows two figures: one sitting incorrectly on the edge of the seat with a cross symbol (❌), and one sitting fully on the seat with a checkmark symbol (✔️) for correct operation.]

Velvet Care

Vacuum your chair monthly. Use a nylon brush for dirt or food. For a deep clean, contact a professional annually.

Stubborn Stains

Blot stains with a damp cloth and a small amount of dish soap. Wipe away excess water with a clean towel. Allow the material to air-dry completely.

Additional Tips

Vacuum to remove loose crumbs or dirt. Use a lint roller for pet fur.

Preventative Care

Rotate pillows and cushions monthly for even wear. Avoid direct sunlight to prevent fading. Consider using a machine-washable slipcover.