EMIAH C710 Ergonomic Office Desk Chair User Manual

Introduction

Thank you for choosing the EMIAH C710 Ergonomic Office Desk Chair. This manual provides detailed instructions for assembly, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your chair. Please read this manual thoroughly before assembly and use, and retain it for future reference.

Safety Information

• Maximum Weight Capacity: Do not exceed the maximum weight limit of 300 pounds (136 kg).
• Assembly: Always follow the assembly instructions carefully. Ensure all screws and bolts are tightened securely before use.
• Usage: Use the chair only for its intended purpose as an office or task chair. Avoid standing on the chair or using it as a step stool.
• Maintenance: Regularly check all components for wear or damage. Replace any damaged parts immediately.
• Children: Keep children away from the chair during assembly. Do not allow children to play on or around the chair.

Package Contents

Before beginning assembly, verify that all parts are present and undamaged. If any parts are missing or damaged, please contact customer support.

• Seat Cushion
• Backrest
• Armrests (2)
• Base (5-star)
• Gas Lift Cylinder
• Casters (5)
• Mechanism Plate
• Hardware Pack (screws, washers, Allen wrench)
• Installation Manual (this document)

Assembly Instructions

Follow these steps to assemble your EMIAH C710 Office Desk Chair. It is recommended to assemble the chair on a soft, clean surface to prevent damage.

1. Attach Casters to Base: Insert each of the five casters into the holes at the end of each leg of the 5-star base. Push firmly until they click into place.
   

   Figure 1: Attaching casters to the 5-star base. Ensure each caster is fully inserted.
2. Insert Gas Lift: Place the gas lift cylinder into the center hole of the assembled 5-star base.
   

   Figure 2: Inserting the gas lift cylinder into the center of the base.

3. Attach Mechanism Plate to Seat: Align the mechanism plate with the pre-drilled holes on the underside of the seat cushion. Ensure the front of the mechanism plate faces the front of the seat. Secure with the provided screws and Allen wrench.
   

   Figure 3: Securing the mechanism plate to the seat cushion. Note the orientation of the plate.

4. Attach Backrest to Seat: Align the backrest with the mounting brackets on the rear of the seat cushion. Secure with the provided screws.
   

   Figure 4: Attaching the backrest to the seat. Ensure a firm connection.
5. Attach Armrests: Attach the armrests to the sides of the seat and backrest using the provided screws. Ensure they are securely fastened.
   

   Figure 5: Securing the armrests to the chair frame.

6. Connect Seat Assembly to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring the center hole of the mechanism plate aligns with the top of the gas lift. Press down firmly to secure.
   

   Figure 6: Final assembly step, connecting the seat to the gas lift.

Operating Instructions

Your EMIAH C710 chair offers several adjustable features for personalized comfort.

1. Height Adjustment

To adjust the seat height:

• To raise the seat: While seated, pull the lever located on the right side of the seat upwards. Lift your weight slightly off the seat, and the seat will rise. Release the lever at the desired height.
• To lower the seat: While seated, pull the lever upwards. Apply your weight to the seat, and it will lower. Release the lever at the desired height.

2. Tilt Function and Tension Control

The chair features a rocking function and adjustable tilt tension.

• To enable rocking: Pull the height adjustment lever outwards. The chair backrest will now allow for a rocking motion between 108° and 130°.
• To lock upright: Push the height adjustment lever inwards.
• Adjust tilt tension: Rotate the round knob located underneath the seat, towards the front. Turn clockwise to increase tension (making it harder to recline) or counter-clockwise to decrease tension (making it easier to recline).

Figure 7: Illustration of the tilt lock/unlock lever and tension adjustment knob.

3. Swivel Function

The chair offers a 360° swivel function for easy movement and access to your workspace.

Maintenance

Proper care will extend the life and appearance of your EMIAH C710 chair.

• Cleaning: Wipe clean with a damp cloth. For tougher stains on the PU leather, use a mild soap solution and a soft cloth, then wipe dry. Avoid harsh chemicals or abrasive cleaners.
• Hardware Check: Periodically check all screws and bolts to ensure they remain tight. Re-tighten as necessary.
• Caster Care: Keep casters free of hair and debris to ensure smooth rolling.
• Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the PU leather to fade or crack.

Figure 8: The premium microfiber leather is designed for easy cleaning.

Troubleshooting

Specifications

• Brand: EMIAH
• Model Name: C710
• Color: Light Beige
• Product Dimensions: 24.8"D x 26.77"W x 35.4"H
• Material: Premium PU Leather, Metal (Base)
• Fill Material: Doll Cotton
• Maximum Weight Recommendation: 300 Pounds (136 kg)
• Special Features: Ergonomic Design, Adjustable Height, 108°-130° Rocking Function, 360° Swivel, Upholstered Armrests, Mute Nylon Casters
• Included Components: Caster, Installation Manual

Figure 9: Detailed product dimensions for the EMIAH C710 Office Chair.

Warranty and Support

EMIAH provides a 24-month warranty for this product. For any questions, concerns, or warranty claims, please contact EMIAH customer service. Our team is available to provide assistance whether pre-sales or after-sales.

Contact Information: Please refer to your purchase documentation or the EMIAH official website for the most current customer service contact details.