IKEA · Chairs & Stools
How to assemble IKEA HATTEFJÄLL Office Chair with Armrests
Step-by-step IKEA HATTEFJÄLL Office Chair with Armrests assembly: 11 illustrated steps, an animated video, the hardware list and the tools you need — following the official instructions (AA-2258168-4).
- 11 illustrated steps
- 6 steps in the manual
- 1:54 video
- 68×68×110 cm cm
What you need
Tools
- Allen key (included)
You’ll need: only the Allen key (124345), included. A table to work on helps in step 3.
Hardware in the box
| Part no. (as printed in the manual) | Qty |
|---|---|
| 10131427 | 4× |
| 192493 | 3× |
Step-by-step assembly
Step 1
Lay the base upside down and press in the 5 casters.
Push each one straight in — not at an angle.
Step 2
Turn the base over onto its casters.
Step 3 · manual step 2
Put the gas cylinder into the hole in the centre of the base.
Step 4 · manual step 3
Lay the seat upside down and slide the backrest bar into the mechanism.
Push the plate on the bar all the way in.
Step 5 · manual step 3
Fix the bar with 3 bolts (192493 / 117317) and the Allen key.
Tighten them firmly.
Step 6 · manual step 4
Turn the seat over.
Step 7 · manual step 4
Hold the seat above the base.
Step 8 · manual step 4
Press the seat down onto the gas cylinder.
The top of the cylinder goes into the hole under the seat.
Step 9 · manual step 5
Fit the armrests to the sides of the seat.
Check which way round they go — see the small pictures in the manual, step 5.
Step 10 · manual step 5
Fix each armrest with 2 screws (10131427).
4 screws in total — tighten them with the Allen key.
Step 11 · manual step 6
Push the 2 covers up over the armrest brackets until they click.
Tips & safety
- Warning: gas cylinder Only trained personnel may replace or repair the seat height adjustment parts (manual p. 5–7).
- Adjust the chair The armrests slide and go up or down. Lift the lever for seat height; pull it out to unlock the tilt, push it in to lock. The seat slides and the backrest height adjusts (manual p. 12–14).
- Safety casters They brake automatically when no one is sitting in the chair, so it stays where you left it (manual p. 15).
Official instructions
This guide follows IKEA’s official assembly instructions (AA-2258168-4). Keep the printed manual to hand — if anything differs, the manual is right.
