DUMOS C-2193 Office Chair Instruction Manual

Safety Information

Please adhere to the following safety guidelines to ensure proper and safe use of the chair:

Sit in the center of the chair, with your back to the backrest. ✔️
Do not sit at the front edge of the chair. ❌
Do not stand on the chair. ❌
Do not use the chair with more than one person. ❌
Do not push the chair around when a person is sitting in it.
Do not push down on the backrest when a person is reclined.
Do not place all your weight on only the backrest.

To Deodorize Leather

To deodorize the leather, leave the chair in a shady outside for 1-2 days.

For Longer Use

Re-tighten bolts every 6 months by using the enclosed allen-key. Using an electric drill can damage the chair. Please re-tighten bolts manually. ⚙️

Assembly Instructions

Follow these steps to assemble your DUMOS C-2193 office chair:

Step 1: Turn the Base (F) upside down. Insert the Legs (G) into the Base one by one. Use Wrench (M) to secure both with Bolts (K) *10.

Step 2: Press Casters (H) *5 into the holes at the end of Legs (G) *5.

Step 3: Insert the Gas Lift (E) into the Base (F).

Step 4: Using Wrench (M), install Back bar (C) to the Backrest (A) with Bolts (L) *2.

Step 5: Turn the Seat (B) upside down. Using Wrench (M), install the Mechanism (D) to the Seat (B) with Bolts (I) *4. Note: The Mechanism (D) is marked with "FRONT"; please make sure the installation direction is correct.

Step 6: Using Wrench (M), attach the Backrest (A) with the back bar to the Seat (B) with Bolts (J) *4.

Step 7: Align the hole on the Mechanism (D) with the Gas Lift (E), and press the chair down until it is fully secured.

Step 8: Finish the installation. ✔️

Package List

(A) Backrest *1
(B) Seat *1
(C) Back bar *1
(D) Mechanism *1
(E) Gas Lift *1
(F) Base *1
(G) Legs *5
(H) Casters *5
(I) Bolts *4
(J) Bolts *4
(K) Bolts *10
(L) Bolts *2
(M) Wrench *1

Instructions For Use

Ensure proper posture for comfortable and ergonomic seating. Adjust the chair height as needed using the lever under the seat.

[Illustration showing a person sitting correctly in the chair with arrows indicating height adjustment]

CAUTION:

Before using the chair, check to ensure that all bolts are fully tightened.
Lubricate all parts and tighten all bolts every 6 months or whenever needed.

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