MULLFJÄLLET Office Chair Assembly

Before You Start

Assembly Recommendations:

Assemble on a soft surface like a rug to prevent scratching the chair components or your floor. Avoid assembly on hard floors without protection.
Ensure all parts align correctly before applying force. Do not force parts into place, as this may cause damage.
If you encounter difficulties or are unsure about any step, consult the IKEA store for assistance.

Parts List

1x Tool (Allen key)
5x Casters (wheels)
4x Screws (part number 122900)
10x Screws (part number 123071)
10x Washers (part number 100842)

Assembly Steps

Step 1: Assemble the Chair Base

Insert the five legs into the central hub of the base. Ensure each leg is fully seated.

Step 2: Attach the Gas Lift Cylinder

Insert the gas lift cylinder into the center of the base. Secure it using five screws (part number 123071) and five washers (part number 100842).

Step 3: Install the Casters

Insert the five casters into the ends of each leg. Push firmly until they click into place.

Step 4: Mount the Chair Mechanism

Place the chair mechanism onto the top of the gas lift cylinder. Ensure it is properly aligned.

Step 5: Attach the Seat

Place the seat cushion onto the chair mechanism. Remove and discard the protective cap from the gas lift cylinder into a recycling bin ♻️.

Step 6: Prepare the Seat Cover

Place the seat cushion on a flat surface. Align the seat cover over the cushion and zip it closed.

Step 7: Connect the Seat to the Base

Align the seat assembly with the gas lift cylinder on the chair base and press down firmly.

Step 8: Secure the Seat

Fasten the seat to the mechanism using four screws (part number 122900).

Step 9: Finalize the Connection

Push down on the seat until it clicks securely into place.

Step 10: Secure the Seat Cover Zipper

Ensure the seat cover zipper is fully closed and secured.

Step 11: Assembly Complete

Your MULLFJÄLLET chair is now ready for use.

Chair Features & Safety

Adjustable Seat Height: The MULLFJÄLLET chair offers adjustable seat height. Use the lever located beneath the seat to raise or lower it.

Tilt Mechanism: The chair features a tilt mechanism, adjustable via a knob under the seat, allowing you to set the desired tension for reclining.

Safety Castors: The chair is equipped with safety castors. These wheels automatically brake when no one is sitting in the chair, preventing it from rolling away when you stand up and ensuring it remains in place.

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