KERDOM Ergonomic Office Chair

Accessories List

(1) Headrest
(2) Backrest
(3) Corner Connector Decorative Cover
(4) Seat Cushion
(5) 2 Armrests
(6) Base Plate
(7) Central Base Tube Split Base Tubes
(8) Gas Lift
(9) 5 Castors
(10) Hexagon Wrench
(11) 2 Screws (M6×20mm)
(12) 4 Screws (M6×18mm)
(13) 6 Screws (M6×30mm)
(14) 4 Screws (M6×25mm)
(15) 3 Screws (M8×35mm)
(16) 5 Screws (M6×20mm)
(17) 2 Decoration Caps

Instructions for Use

Lockable Tilt Adjustment: The chair allows for tilt adjustment up to 130 degrees, with a lockable mechanism at a 105-degree angle. Tilt tension can also be adjusted.

Up and Down Adjustment: The seat height can be adjusted up and down. The chair also features an adjustable lumbar support.

Headrest Adjustment: The headrest can be adjusted vertically.

Armrests 3D Adjustment: The armrests can be adjusted in three dimensions (up/down, forward/backward, and pivot).

Notice

This is a single chair; please do not seat 2 or more persons.
Do not stand on the chair.
Do not sit reverse or sit outside of the seat cushion.
Check the screws once every 6 months to ensure they are tight. Do not use the chair when the screws are loose.
Please assemble according to the instructions.
For any questions, contact kerdom-service@outlook.com

Assembly Instruction

Please assemble in a wide and flat place.

Step 1: Base Assembly

Insert Split Base Tubes (7) into the Central Base Tube (7). Align the screw holes and tighten 5 Screws (16) (M6×20mm) with the Hexagon Wrench (10) to secure the Split Base Tubes (7) to the Central Base Tube (7). Repeat five times.

Step 2: Attach Castors

Extend the Split Base Tubes (7). Insert the 5 Castors (9) into the ends of the Split Base Tubes (7).

Step 3: Install Gas Lift

Insert the Gas Lift (8) into the hole of the Central Base Tube (7).

Step 4: Attach Armrests to Seat Cushion

Align the Armrests (5) under the Seat Cushion (4). Use the Hexagon Wrench (10) to tighten 6 Screws (13) (M6×30mm) through the three screw holes.

Step 5: Attach Base Plate to Seat Cushion

Place the Base Plate (6) onto the bottom of the Seat Cushion (4). Align the four screw holes and use the Hexagon Wrench (10) to tighten 4 Screws (12) (M6×18mm) to fix the Base Plate (6).

Step 6: Attach Corner Connector to Base Plate

Position the Corner Connector (3) onto the bottom of the Base Plate (6). Align the three screw holes and use the Hexagon Wrench (10) to tighten 3 Screws (15) (M8×35mm) to secure the Corner Connector (3).

Step 7: Attach Decorative Cover and Corner Connector to Backrest

Fasten the Decorative Cover (3) to the Backrest (2) without screws. Align the 4 screw holes on the Backrest (2) with the Corner Connector (3) and use the Hexagon Wrench (10) to tighten 4 Screws (14) (M6×25mm).

Step 8: Final Assembly

Place the assembled seat and backrest unit (from Step 7) onto the Gas Lift (8) installed in Step 3. Press down firmly on the seat cushion to ensure a secure fit. Align the Headrest (1) with the screw holes at the top of the Backrest (2) and use the Hexagon Wrench (10) to tighten 2 Screws (11) (M6×20mm). Attach the 2 Decoration Caps (17).

Caution: If the Gas Lift (8) is not firmly inserted into the Base Plate (6), it may detach when the chair is raised.

Activate Your Warranty Now!

KERDOM is committed to providing excellent service. Before using the product, it is recommended to scan the QR code to activate the warranty. This ensures better after-sales support and a more considerate service experience.

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