Shintenchi Big and Tall Gaming Chair

Introduction

Thank you for choosing the Shintenchi Big and Tall Gaming Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new chair. Please read these instructions carefully before use and retain them for future reference.

This ergonomic chair is designed for comfort and support during extended periods of sitting, featuring a pocket spring cushion, high backrest, retractable footrest, adjustable headrest, and massage lumbar support.

Safety Information

• Maximum Weight Capacity: Do not exceed the maximum weight limit of 300 pounds (136 kg). Exceeding this limit may cause damage to the chair and potential injury.
• Assembly: Ensure all parts are correctly assembled and all fasteners are tightened before using the chair. Periodically check all bolts and screws to ensure they remain tight.
• Stability: Avoid standing on the chair or using it as a step stool. Do not lean excessively to one side or the back when reclining to prevent tipping.
• Children: Keep children away from the chair during assembly. Small parts may pose a choking hazard.
• Movement: Use caution when moving the chair, especially on uneven surfaces. Ensure the casters are free from obstructions.
• Environment: Use the chair indoors on a flat, stable surface. Avoid exposure to direct sunlight or extreme temperatures.

Parts List

Before assembly, verify that all components are present and undamaged. Refer to the included assembly guide for a detailed visual parts list.

• Chair Backrest
• Seat Cushion with Armrests and Footrest Mechanism
• Five-Star Base
• Casters (5x)
• Gas Lift Cylinder
• Gas Lift Cover
• Mechanism Plate
• Headrest Pillow
• Lumbar Support Pillow (with massage function)
• Hardware Pack (screws, washers, Allen wrench)

Setup and Assembly

Assembly typically takes 15-20 minutes. For detailed, step-by-step visual instructions, please refer to the official assembly video and the printed manual included in your package.

General Assembly Steps:

1. Insert the casters into the holes at the end of each leg of the five-star base.
2. Place the gas lift cylinder into the center hole of the five-star base. Cover it with the gas lift cover.
3. Attach the mechanism plate to the underside of the seat cushion using the provided screws. Ensure the front of the mechanism faces the front of the seat.
4. Carefully place the assembled seat onto the gas lift cylinder.
5. Attach the backrest to the seat cushion using the designated screws.
6. Install the headrest and lumbar support pillows. The lumbar pillow includes a USB cable for its massage function.

Image: Chair dimensions, including seat height, backrest height, and width.

Operating Instructions

Your Shintenchi Gaming Chair offers multiple adjustment options for personalized comfort.

1. Height Adjustment

• To raise the seat: While seated, lift the lever located under the right side of the seat. The seat will rise. Release the lever at the desired height.
• To lower the seat: While seated, lift the lever located under the right side of the seat. The seat will lower. Release the lever at the desired height.

2. Reclining Function

• To recline the backrest: Pull the recline lever (usually on the left side) upwards and lean back. Release the lever to lock the backrest in your desired position (up to 135 degrees).
• To return to an upright position: Pull the recline lever upwards and lean forward slightly. The backrest will return to its original position.

3. Retractable Footrest

• To extend the footrest: Pull the footrest handle located under the front of the seat outwards. Extend it to your desired length.
• To retract the footrest: Push the footrest back under the seat until it is fully stored.

4. Lumbar Support with Massage Function

• The lumbar support pillow can be adjusted vertically by sliding it along the straps on the backrest.
• To activate the massage function, connect the USB cable from the lumbar pillow to a compatible USB power source (e.g., computer, power bank, USB wall adapter).

5. Linkage Armrests

• The armrests are designed to move synchronously with the reclining backrest, providing continuous arm support. No manual adjustment is needed for recline.

Image: Overview of key chair features and adjustments.

Image: Visual representation of the chair's ergonomic support for the neck, back, and lumbar regions.

Maintenance

Regular maintenance helps prolong the life and appearance of your chair.

• Cleaning Fabric: For general cleaning, use a soft cloth dampened with mild soap and water. Blot spills immediately. Avoid harsh chemicals or abrasive cleaners.
• Casters: Periodically clean hair and debris from the casters to ensure smooth rolling.
• Hardware: Every few months, check all screws and bolts to ensure they are tight. Retighten as necessary to maintain stability.
• Moving Parts: Lubricate moving parts (e.g., gas lift, recline mechanism) with a silicone-based lubricant if they become stiff or noisy.

Troubleshooting

If you encounter issues with your chair, try these common solutions:

If these solutions do not resolve the issue, please contact customer support.

Specifications

• Brand: Shintenchi
• Model Number: STC-DJY001-GR-X
• Color: Grey
• Material: Alloy Steel (Frame), Fabric (Seat), Foam (Fill)
• Product Dimensions (D x W x H): 26" x 21" x 48"
• Item Weight: 40 pounds
• Maximum Weight Recommendation: 300 pounds
• Seat Depth: 21.6 inches
• Arm Style: Linkage
• Back Style: High Back
• Included Components: Swivel

Warranty and Support

Shintenchi is committed to providing quality products and dedicated customer support. For any questions, concerns, or assistance with your product, please refer to the contact information provided in your purchase documentation or visit the official Shintenchi website.

Please retain your proof of purchase for any warranty claims.