ALEFJÄLL Office Chair Assembly Instructions
Product by IKEA
Parts and Tools
Ensure you have all the following parts and tools before beginning assembly:
Hardware:
- 4x Screw (Part No. 100130)
- 8x Screw (Part No. 128633)
- 10x Screw (Part No. 122898)
Tools Included:
- 1x Allen Key (Part No. 124345)
- 1x Allen Key (Part No. 100092)
Components:
- 5x Castor Wheels (Part Nos. 10048929, 10048985, 10049301, 10122730)
- 1x Gas Lift Cylinder
- 1x Gas Lift Cylinder Cover
- 1x Seat Mechanism
- 1x Seat Cushion
- 2x Armrests
- 1x Base Assembly (Star base with central column)
- 1x Small Component (Part Nos. 10038683, 10039744, 10039731)
Assembly Steps
Step 1: Assemble the Base
Diagram shows the star-shaped base being assembled on a protective mat, with arrows indicating how the legs connect to the central hub.
Step 2: Secure the Legs
Attach the five legs to the central column using 10x screws (Part No. 122898). Tighten securely with the Allen key (Part No. 124345). Close-up diagram shows screws being inserted and tightened.
Step 3: Attach Castor Wheels
Insert the 5x castor wheels into the ends of the five legs. Push firmly until they click into place. Diagram shows castor wheels being inserted into the leg sockets.
Step 4: Attach Gas Lift Cylinder Cover
Place the gas lift cylinder cover over the central column of the base assembly. Diagram shows the cover being lowered onto the column.
Step 5: Install Gas Lift Cylinder
Insert the gas lift cylinder into the central column of the base assembly. Diagram shows the cylinder being inserted into the base.
Step 6: Mount Seat Mechanism to Gas Lift
Place the seat mechanism onto the top of the gas lift cylinder. Ensure it is aligned correctly. Diagram shows the seat mechanism being placed onto the gas lift.
Step 7: Attach Seat Mechanism to Seat Cushion
Position the seat mechanism onto the underside of the seat cushion. Secure it using 8x screws (Part No. 128633). Diagram shows the mechanism aligned with screw holes on the seat cushion.
Step 8: Tighten Seat Mechanism Screws
Use the Allen key (Part No. 124345) to tighten the 8x screws securing the seat mechanism to the seat cushion. Diagram shows Allen key tightening screws.
Step 9: Attach Armrests
Attach the two armrests to the sides of the seat mechanism using 4x screws (Part No. 100130) and the Allen key (Part No. 100092). Diagram shows armrests being attached with screws.
Step 10: Connect Seat Assembly to Base
Carefully lift the assembled seat and armrests and place it onto the base assembly's gas lift cylinder. Diagram shows the seat assembly being lowered onto the base.
Step 11: Install Small Component
Attach the small component (with part numbers 10038683, 10039744, 10039731) to the seat mechanism as shown. Diagram shows the small component being attached.
Step 12: Final Positioning
Ensure the seat assembly is properly seated on the base. Diagram shows the chair from the side, indicating the seat assembly is now mounted on the base.
Step 13: Secure Seat Assembly
Secure the seat assembly to the base using 4x screws (Part No. 128633). Diagram shows screws being inserted from the underside to secure the seat assembly to the base.
Product Features and Safety
Height Adjustment
The chair features a gas lift cylinder for seat height adjustment. Use the lever located under the seat to adjust the height. Diagrams illustrate the operation of the seat height adjustment lever, showing how to lift the lever to raise the seat and how to operate levers for tilt and height adjustment.
Important Safety Warning: Only trained personnel may replace or repair seat height adjustment components with energy accumulators.
Safety Castors
The chair is equipped with safety castors that brake automatically when no one is sitting in the chair. This prevents the chair from rolling away when you stand up, ensuring it remains in place. Diagram shows a person sitting in the chair, illustrating the function of the safety castors.
