DUMOS ‎5025-BK ‎Ergonomic Home Office Desk Chair Instruction Manual

DUMOS ‎5025-BK ‎Ergonomic Home Office Desk Chair

Product Usage Instructions

Safety Information

• 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 the backrest when a person is reclining.
• Do not place all your weight on only the backrest.

Instructions For Use

• 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.

To Deodorize the Leather

• Please leave the chair in a shady area outside for 1-2 days.

Important Note

• Using an electric drill can damage the chair. Please re-tighten bolts manually.

Assembly Instructions

1. Turn the Base (6) upside down. Install Legs (7) to the Base (6) using Bolts (11).
2. Press Casters (8) into the holes at the end of Legs (7).
3. Turn the Base back and insert Gas Lift (5) into the center hole of the Base.
4. Attach Mechanism (4) to the Seat Cushion (2) using Bolts (9).
5. Align the center hole of the Seat Mechanism with Gas Lift (5) and press the Seat Cushion down until fully secured.
6. Attach Left Armrest (3) and Right Armrest (3) to both sides of the Seat Cushion (2) using Bolts (10).
7. Attach Left Armrest (3) and Right Armrest (3) to the screw holes on the lower side of the Backrest (1) using Bolts (10).
8. Rotate the Backrest (1) up. Attach Left Armrest (3) and Right Armrest (3) to the screw holes on the upper side of the Backrest (1) using Bolts (10).
9. Adjust the balance on each side of the Chair and tighten the Bolts (10) on both sides of the Armrests. Then press Caps (12) into the screw holes of each side.

Package List

Assembly Instruction

1. Turn Base (6) upside down. Install Legs (7)5 to the Base (6) with Bolts (11)10.
2. Press Casters (8)5 into the holes at the end of Legs (7)5.
3. Turn the Base back, and insert Gas Lift (5) into the center hole of the Base.
   • NOTE: Make sure the “FRONT” direction of
   • Mechanism (4) and Seat Cushion (2) are the same.
4. Attach Mechanism (4) to the Seat Cushion (2) with Bolts (9)*4.
   • NOTE: Bolts are only tightened 30%.
5. Align the center hole of the Seat Mechanism with Gas Lift (5)and press the Seat Cushion down until it is fully secured. Attach Armrests (3)1L1R to both sides of the Seat Cushion (2) with Bolts (10)*4.
   • NOTE: Bolts are only tightened 30%.
6. Tilt the Backrest (1) down. Attach Armrests (3)1L1R to the screw holes on the lower side of the Backrest (1) with Bolts (10)*2.
   • NOTE: Bolts are only tightened 30%.
7. Rotate the Backrest (1) up. Attach Armrests (3) 1L1R to the screw holes on the upper side of the Backrest (1) with Bolts (10)*2.
   • NOTE: Bolts are only tightened 30%.
8. Adjust the balance on each side of the Chair, and 100% tighten the Bolts (10)8 on both sides of the Armrests. Then Press Caps (12)8 into screw holes of each side.

Instructions For Use

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.

• To deodorize the leather please leave the chair in 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.

Safety Information

• 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 the backrest when a person is reclining
• Do not place all your weight on only the backrest

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>