1. Introduction
Thank you for choosing the HeroSet HS178 Big and Tall Executive Office Chair. This chair is designed to provide robust support and comfort for users up to 500 lbs, featuring a wide seat, adjustable ergonomic lumbar support, and durable PU leather. This manual will guide you through the assembly, operation, and maintenance of your new chair to ensure a long-lasting and comfortable experience.
Image 1.1: HeroSet HS178 Executive Office Chair overview.
2. Safety Information
Important Safety Notice: This product has a weight capacity of 500 lbs. Ensure the chair is on a stable, level surface to prevent tipping. Improper use may result in injury. Always follow assembly instructions carefully and do not exceed the stated weight limit.
3. Package Contents
Before assembly, please verify that all components are present in the package:
- PU leather chair components
- Ergonomic Lumbar Support mechanism
- Padded Armrests (2)
- Wheels (5)
- Headrest
- Large Seat Cushion
- Gas Lift Cylinder
- Chair Base
- Hardware Kit (screws, washers, Allen wrench)
- Installation Manual
4. Assembly Instructions
Assembly of the HeroSet HS178 chair is designed to be straightforward. An installation manual is included in your package, and an assembly video is also available for visual guidance. It is recommended to have a clear, spacious area for assembly.
- Attach Wheels to Base: Insert the five wheels into the holes at the end of each leg of the chair base until they click securely into place.
- Install Gas Lift: Place the gas lift cylinder into the center hole of the chair base.
- Attach Mechanism to Seat: Secure the seat plate mechanism to the underside of the seat cushion using the provided screws. Ensure the front of the mechanism faces the front of the seat.
- Connect Armrests: Attach the armrests to the seat cushion and the backrest using the designated screws. Do not fully tighten until all connections are made.
- Attach Backrest to Seat: Align the backrest with the seat and secure it with screws. Once all parts are aligned, tighten all screws firmly.
- Place Seat Assembly on Gas Lift: Carefully place the assembled seat onto the gas lift cylinder, ensuring it is centered and stable.
Image 4.1: Illustration of the chair base and gas lift cylinder components.
5. Operating Instructions
Your HeroSet HS178 chair offers several adjustable features for personalized comfort:
- Height Adjustment: To adjust the chair height, pull the lever located under the right side of the seat upwards. While seated, lift the lever to lower the chair. To raise the chair, lift the lever while standing. Release the lever to lock the height.
- Adjustable Lumbar Support: The built-in ergonomic lumbar support can be adjusted forward or backward. Locate the adjuster knob under the seat cushion. Turn it clockwise to move the lumbar support forward and counter-clockwise to move it backward, allowing you to find your preferred spinal support point.
- Rocking Function and Recline: The chair features a rocking function with a tilt angle of 90°-120°. To activate the rocking function, pull the lever on the left side of the seat outwards. Push it inwards to lock the chair in an upright position. The tension of the rocking motion can be adjusted by turning the round knob located under the seat. Turn clockwise to increase tension (stiffer rock) and counter-clockwise to decrease tension (looser rock).
- 360° Swivel: The chair is designed with a 360° free swivel for easy movement and access to your workspace.
Image 5.1: Detail of the adjustable lumbar support knob.
Image 5.2: Illustration of the chair's rocking and recline capabilities.
6. Maintenance
To maintain the appearance and longevity of your HeroSet HS178 office chair, follow these simple maintenance guidelines:
- Cleaning: Wipe clean with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners, as these can damage the PU leather.
- Regular Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary to prevent wobbling or creaking.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the PU leather to fade or crack. Position the chair away from direct sunlight when possible.
- Floor Protection: While the wheels are designed to be smooth and not scratch floors, using a floor mat is recommended for optimal protection, especially on delicate surfaces.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair is wobbly or unstable. | Loose screws or improper assembly. | Ensure all screws and bolts are securely tightened. Refer to the assembly instructions. |
| Chair creaks during use. | Loose connections, friction between parts, or gas lift issue. | Re-tighten all assembly screws. Apply a small amount of silicone lubricant to moving parts if the creaking persists. If the noise originates from the gas lift, contact customer support. |
| Height adjustment not working. | Gas lift malfunction or lever mechanism issue. | Check if the lever is fully engaged. If the gas lift is faulty, it may need replacement. Contact customer support. |
| Rocking function is too stiff or too loose. | Tilt tension knob incorrectly adjusted. | Adjust the round tilt tension knob located under the seat. Turn clockwise for stiffer rocking, counter-clockwise for looser rocking. |
8. Specifications
Image 8.1: Detailed dimensions of the HeroSet HS178 chair.
| Feature | Detail |
|---|---|
| Brand | HeroSet |
| Model Name | HS178 (Leather Executive Office Chair) |
| Color | Black |
| Product Dimensions | 20.4"D x 24"W x 53"H |
| Maximum Weight Recommendation | 500 Pounds |
| Material | PU Leather, Foam (Fill Material) |
| Special Features | Ergonomic Lumbar Support, Wide Side Seat Cushion, Rocking Function (90°-120°), 360° Swivel |
| Back Style | Padded Soft Back |
| Seat Depth | 24 inches |
| Chair Backrest Width | 23.5 Inches |
| Item Weight | 50 pounds |
| UPC | 679065055760 |
9. Warranty and Support
HeroSet provides excellent service and support for your product.
- Warranty: Your HeroSet HS178 chair comes with a 12-month service period.
- Customer Support: If you have any questions, concerns, or require assistance with assembly or operation, please contact our professional team.
- How to Contact Us:
- Log in to your Amazon Account.
- Navigate to "Your Orders".
- Find your order for the HeroSet HS178 chair.
- Click "Contact Seller".
- Alternatively, you may reach us via email at cs@herosets.com or by phone at +1 (978) 647-3329.
Image 9.1: HeroSet customer support contact details.