BLECKBERGET Office Chair Assembly Instructions

Product Overview

This document provides instructions for assembling the BLECKBERGET office chair by IKEA. Please follow these steps carefully to ensure proper and safe assembly.

Parts List

5x Casters (Part Numbers: 159022, 159023, 144659)
3x Screws (Part Numbers: 158834, 158835)
1x Screw (Part Numbers: 152546, 152545)
4x Screws (Part Numbers: 122900, 159026)
5x Screws (Part Numbers: 122898, 149697)
1x Hex Key (Part Number: 100092)
1x Hex Key (Part Number: 124345)

Assembly Steps

Step 1: Assemble the Base

Lay the five-star base components on a soft surface [Assemble on soft surface] to prevent scratching. Connect the five leg pieces to the central hub of the base. This forms the foundation of the chair. Diagrams show incorrect assembly [Incorrect assembly] and correct assembly on a soft surface.

Step 2: Attach Legs to Base

Secure the five leg pieces to the central hub using the provided screws (Part Numbers: 149697, 122898) and the hex key (Part Number: 124345). Ensure all screws are tightened securely. If you need assistance [Need assistance?] or are unsure, contact IKEA [Contact IKEA for support].

Step 3: Install Casters

Insert the five casters into the designated sockets at the end of each leg of the five-star base. Push firmly until they click into place.

Step 4: Attach Gas Lift Cover

Place the decorative cover over the gas lift cylinder. This is a cosmetic step.

Step 5: Insert Gas Lift

Insert the gas lift cylinder into the central opening of the assembled five-star base. The wider end should be at the bottom.

Step 6: Attach Seat Mechanism to Gas Lift

Align the seat mechanism with the top of the gas lift cylinder. Secure the mechanism to the gas lift using the provided screws (Part Numbers: 158834, 158835) and the hex key (Part Number: 100092). Ensure it is firmly attached. [Information] is provided regarding energy accumulators.

Step 7: Attach Seat Plate

Align the seat plate with the underside of the chair seat. Secure the seat plate to the seat mechanism using the provided screws (Part Numbers: 152546, 152545) and the hex key (Part Number: 124345). Ensure all screws are tightened.

Step 8: Attach Backrest Support

The backrest support is part of the seat mechanism assembly. Ensure it is correctly positioned and secured.

Step 9: Attach Seat to Mechanism/Base

The seat assembly, now with the mechanism and backrest support attached, is ready to be connected to the base. Ensure the seat mechanism is properly aligned with the gas lift.

Step 10: Place Seat onto Base

Carefully place the assembled seat unit onto the gas lift cylinder protruding from the base. The weight of the user will secure it.

Step 11: Final Backrest Attachment

Attach the backrest to the seat mechanism. Use the provided screws (Part Numbers: 158834, 158835) and the hex key (Part Number: 100092) to secure the backrest to its mounting point on the seat mechanism. [Rotate] the component as indicated.

Important Safety Information

Energy Accumulators: Components related to seat height adjustment that contain energy accumulators must only be replaced or repaired by trained personnel. Attempting to service these components without proper training can be hazardous. [Information] is provided in multiple languages.

Castor Locking: For safety reasons, the castors on this chair are designed to lock automatically when the chair is not in use. This prevents unintended movement. [Information] is provided regarding this feature.

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