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Office Chair Installation 905

Admin October 10, 2026

No direct installation steps were found for 'Office Chair Installation 905', but you can refer to the installation procedures for regular office chairs and similar models (such as the W9005 hollow-out computer chair), or opt for paid installation services.

I. Regular Office Chair Installation Steps (General Reference)

  1. Inventory Parts: Ensure all components are present, including 5 casters, 1 pneumatic lift rod, 1 five-star base, 1 control mechanism tray, and 1 seat.
  2. Install Tray: Flip the chair over, remove the screws from the bottom of the seat cushion, and secure the tray underneath the cushion.
  3. Install Casters: Insert the casters into the five ends of the five-star base, ensuring they are secure and do not wobble.
  4. Connect Lift Rod to Seat: Insert the thicker end of the pneumatic lift rod into the center hole of the five-star base, then align the tray and seat assembly with the top of the lift rod and insert it.
  5. Safety Check: Sit on the chair and test if the height adjustment lever works properly, ensuring there are no unusual noises or wobbling.

II. W9005 Hollow-out Computer Chair Installation Steps (Similar Model Reference)

  1. Assemble Five-star Base and Gas Rod: Insert 5 casters into the five-star base, then insert the gas rod into the center of the five-star base and press lightly to secure.
  2. Attach Armrests: Use 6 long, thin screws to attach the armrests to both sides of the seat cushion, tightening them one by one with a wrench.
  3. Install Tray: Use 4 short, thin screws to secure the tray to the bottom of the seat cushion, ensuring a firm connection.
  4. Attach Backrest: Place washers on the screws, then use 3 thick screws to connect the backrest to the tray (repeat 7 times), applying force symmetrically.
  5. Overall Assembly: Align the seat cushion tray with the gas rod and insert it, ensuring the gas rod and tray fit perfectly.
  6. Install Headrest: Use 2 medium-sized screws to secure the headrest bracket to the backrest, completing the adjustable function setup.

III. Special Instructions for Model HY-905B

If the office chair model to be installed is HY-905B, the merchant offers two solutions:

  1. Paid Installation Service: Contact the merchant to schedule professional on-site assembly, with fees to be negotiated separately.
  2. Local Installer Recommendation: The merchant can provide contact information for nearby installers, allowing users to communicate service details independently.

Precautions:

  • Before installation, be sure to check the parts list to avoid omissions that may require rework.
  • Use the provided tools (such as a wrench) during operation to avoid damaging components through forced assembly.
  • If you have doubts about the steps, it is recommended to opt for paid installation or consult the merchant's technical support.