KERDOM 933 Ergonomic Office Chair User Manual

Introduction

Thank you for choosing the KERDOM 933 Ergonomic Office Chair. This manual provides detailed instructions for assembly, operation, maintenance, and troubleshooting to ensure you get the most out of your new chair. Please read this manual thoroughly before assembly and use, and keep it for future reference.

Figure 1: The KERDOM 933 Ergonomic Office Chair, fully assembled and ready for use.

Product Dimensions

Understanding the dimensions of your office chair is important for proper placement and ergonomic setup. Below are the key measurements of the KERDOM 933 chair.

Figure 2: Detailed dimensions of the KERDOM 933 Office Chair, including seat width, backrest height, and overall height range.

• Overall Height: 36.6" - 40.2" (93cm - 102cm)
• Seat Height (from floor): 15.4" - 18.9" (39cm - 48cm)
• Seat Width: 18.9" (48cm)
• Backrest Width: 17.7" (45cm)
• Overall Depth: 25.2" (64cm)

Setup and Assembly

The KERDOM 933 office chair is designed for straightforward assembly, typically taking 10 to 20 minutes. All necessary tools and detailed instructions are included in the packaging. Please ensure all components are present before beginning assembly.

Assembly Steps:

1. Unpack Components: Carefully remove all parts from the packaging and lay them out on a clean, flat surface. Verify that all parts listed in the instruction manual are present.
2. Attach Casters to Base: Insert the casters (wheels) into the holes at the end of each leg of the chair base. Push firmly until they click into place.
3. Insert Gas Lift: Place the gas lift cylinder into the center hole of the assembled chair base.
4. Attach Mechanism to Seat: Secure the seat mechanism to the underside of the seat cushion using the provided screws. Ensure the front of the mechanism aligns with the front of the seat.
5. Attach Backrest to Seat: Connect the backrest to the seat assembly using the designated screws.
6. Attach Armrests: Secure the armrests to both the seat and backrest using the provided screws.
7. Connect Seat Assembly to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is securely seated.
8. Final Check: Once assembled, sit on the chair to ensure all components are stable and securely fastened.

If you encounter any difficulties during assembly, please refer to the detailed instructions provided in your product packaging or contact customer support.

Operating Instructions

The KERDOM 933 chair offers several adjustable features to customize your seating experience for optimal comfort and ergonomics.

1. Seat Height Adjustment

Figure 3: Illustration of the seat height adjustment mechanism, showing the lever and the 8cm adjustment range.

To adjust the seat height, locate the lever on the right side, beneath the seat.

• To Raise: While standing, lift the lever upwards. The seat will rise automatically. Release the lever at your desired height.
• To Lower: While seated, lift the lever upwards. The seat will lower under your weight. Release the lever at your desired height.

2. Flip-Up Armrests

Figure 4: Demonstrates the 90-degree flip-up armrest feature, allowing the chair to be stored compactly under a desk.

The armrests on the KERDOM 933 chair can be flipped up by 90 degrees, allowing you to push the chair closer to your desk or save space when not in use.

• To Flip Up: Gently lift each armrest upwards until it locks into the vertical position.
• To Flip Down: Pull each armrest downwards until it returns to the horizontal position.

3. Rocking Function and Lumbar Support

Figure 5: Visual representation of the chair's adjustable features, including the 90-125 degree rocking style and mesh lumbar support.

The chair features a rocking function and integrated lumbar support for enhanced comfort.

• Rocking Function (90-125°): Use the lever on the left side (opposite the height adjustment lever) to engage or disengage the rocking mechanism. Push the lever inwards to lock the backrest in an upright position, or pull it outwards to allow for rocking motion. The tension of the rocking can often be adjusted by a knob located underneath the seat.
• Lumbar Support: The mesh backrest is designed with ergonomic lumbar support to fit the natural curve of your waist, protecting your spine during long periods of sitting.

Maintenance and Care

Proper maintenance will extend the life and appearance of your KERDOM 933 office chair.

• Cleaning: Regularly wipe down the chair with a soft, damp cloth. For mesh and fabric areas, a mild soap solution can be used, but avoid harsh chemicals or abrasive cleaners. Ensure the chair is dry before use.
• Caster Maintenance: Periodically check the casters for accumulated dust, hair, or debris that might hinder smooth rolling. Clean them as needed.
• Tighten Fasteners: Over time, screws and bolts may loosen. Periodically check all fasteners and tighten them to ensure the chair remains stable and safe.
• Avoid Overloading: Do not exceed the recommended weight capacity of the chair (typically around 250 lbs or 113 kg, though not explicitly stated in provided data, this is a common standard).
• Environmental Conditions: Avoid exposing the chair to direct sunlight for prolonged periods or extreme temperatures, as this can cause material degradation.

Troubleshooting

This section addresses common issues you might encounter with your office chair.

Specifications

Key technical specifications for the KERDOM 933 Ergonomic Office Chair.

• Brand: KERDOM
• Model Number: 933
• Color: Black
• Product Dimensions (L x W x H): 55 x 55 x 55 cm (21.7 x 21.7 x 21.7 inches)
• Item Weight: 11 Kilograms (24.25 lbs)
• Material: Polypropylene (Frame), Mesh (Backrest)
• Special Features: Adjustable Backrest, Ergonomic Design, Adjustable Height, Reclining (Rocking), Rolling Casters, Flip-up Armrests
• Back Style: Mesh
• Frame Material: Metal

Customer Support

Your satisfaction is our priority. If you have any questions, concerns, or require assistance with your KERDOM 933 office chair, please do not hesitate to contact our customer service team.

How to Contact Support:

1. Log in to your Amazon account.
2. Navigate to "Your Orders".
3. Locate the order ID for your KERDOM 933 chair.
4. Click on "Contact Seller".

We are committed to providing effective and professional solutions within 24 hours.

Warranty Information

Specific warranty details for the KERDOM 933 Ergonomic Office Chair are not explicitly provided in the product information. For any warranty-related inquiries, please contact customer support using the method described above. Please retain your proof of purchase for any warranty claims.