HATTEFJÄLL Office Chair Assembly Instructions

Introduction

This document provides assembly instructions for the IKEA HATTEFJÄLL office chair.

Important Safety Warning: Only trained personnel may replace or repair seat height adjustment components with energy accumulators.

Parts List

• 5x Casters (Part Numbers: 10049302, 10049290)
• 4x Screws (Part Number: 10131427)
• 3x Screws (Part Number: 192493 / 117317)
• 1x Allen Key (Part Number: 124345)

Assembly Steps

Step 1: Attach Casters

Insert 5 casters into the legs of the chair base. A close-up view shows a caster being pushed firmly into the socket of a chair base leg until it clicks into place.

Visual: Chair base with 5 casters being attached.

Step 2: Attach Gas Lift

Insert the gas lift cylinder into the central opening of the chair base. The arrow indicates insertion.

Visual: Chair base with gas lift cylinder being inserted.

Step 3: Attach Seat Mechanism

Align the seat mechanism with the underside of the seat. Secure it using 1x Allen key and 3x screws (Part Number: 192493 / 117317).

Visual: Underside of seat with mechanism being screwed on.

Step 4: Connect Seat to Base

Lower the assembled seat onto the gas lift cylinder attached to the base. An arrow shows the direction of placement.

Visual: Chair seat assembly being placed onto the chair base.

Step 5: Attach Armrests

Attach the armrests to the sides of the seat using 2x screws (Part Number: 10131427) per armrest, tightened with the Allen key (Part Number: 124345).

Visual: Chair with armrests being attached to the sides.

Step 6: Attach Protective Covers

Attach 2x plastic protective covers to the underside of the seat mechanism. They click into place.

Visual: Underside of the chair showing protective covers being attached.

Chair Features and Adjustments

Armrest Adjustment

The armrests can be adjusted forward and backward.

Visual: Hand adjusting armrest forward/backward.

Seat Height Adjustment

Use the lever under the seat to adjust the seat height up or down. The mechanism can also be locked or unlocked.

Visual: Lever under the seat being operated for height adjustment and locking.

Backrest Tilt Adjustment

Use the lever to adjust the tilt of the backrest. Multiple tilt positions are indicated.

Visual: Lever for backrest tilt adjustment and different tilt angles.

Safety Castors Feature

The HATTEFJÄLL office chair is equipped with safety castors. These castors automatically brake when no one is sitting in the chair. This prevents the chair from rolling away when you stand up, ensuring it remains in the position you left it.

Visual: Illustration showing a hand pressing down on a castor, indicating the braking mechanism.