RENBERGET Office Chair
Assembly Instructions
Brand: IKEA
Important Safety Information
⚠️ Warning! Only trained personnel may replace or repair seat height adjustment components with energy accumulators.
This warning is present in multiple languages, emphasizing the need for qualified technicians for repairs involving energy accumulators in the seat height adjustment mechanism.
Parts Included
- 5x Casters (Part number: 10049025)
- 1x Allen Key (Part number: 124345)
- 8x Screws (Part number: 122899)
- 4x Screws (Part number: 122900)
- 10x Screws (Part number: 122898)
- 1x Seat Mechanism
- 1x Gas Lift Cylinder
- 1x Chair Base (5-leg star design)
- 2x Armrests
- 1x Seat Cushion with Zipper
- 1x Back Support Frame
Assembly Steps
Step 1: Assemble the Chair Base
Lay out the five legs of the chair base on a soft surface (e.g., a rug) to prevent scratching. Connect each leg to the central hub of the base, ensuring they are securely fitted.
Step 2: Attach Casters to Base Legs
Insert the 5 casters (10049025) into the designated holes at the end of each base leg. Ensure each caster is fully seated.
Step 3: Secure Base Legs to Hub
Using the Allen key (124345) and 5 screws (122898), attach the five base legs to the central hub. Tighten the screws securely.
Step 4: Attach Seat Mechanism to Seat Cushion
Position the seat mechanism onto the underside of the seat cushion. Align the holes and secure it using 4 screws (122900) and the Allen key (124345). Ensure the mechanism is correctly oriented and the screws are tightened.
Step 5: Install Gas Lift Cylinder
Insert the gas lift cylinder (1x) into the center opening of the chair base.
Step 6: Connect Seat Assembly to Gas Lift
Carefully place the seat assembly (with the mechanism attached) onto the top of the gas lift cylinder. Press down firmly on the seat to secure the connection.
Step 7: Attach Armrests
Align each armrest with the mounting points on the sides of the seat. Secure each armrest using 4 screws (122899) and the Allen key (124345). Ensure screws are tightened correctly.
Step 8: Attach Back Support Frame
Align the back support frame with the mounting points on the seat mechanism. Secure it using 2 screws (122899) and the Allen key (124345). Ensure screws are tightened correctly.
Step 9: Final Tightening
Using the Allen key (124345), go back and ensure all screws used in the assembly (including those for armrests and back support) are securely tightened.
Chair Adjustments
Seat Height Adjustment
To adjust the seat height: Lift the lever located beneath the seat. Move the seat up or down to your desired height. Release the lever to lock the seat in place.
Tilt Tension Adjustment
To adjust the tilt tension: Locate the knob beneath the seat. Turn the knob clockwise (+) to increase the tilt tension (making it harder to recline) or counter-clockwise (-) to decrease the tilt tension (making it easier to recline).
Safety Features
Safety Castors
This chair is equipped with safety castors. These castors automatically brake when no one is sitting in the chair. This feature prevents the chair from rolling away unexpectedly when you stand up, ensuring it remains stationary and can be found exactly where you left it.