Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of your Amazon Basics Mesh Desk Chair, Model FG-50854M. Please read this manual thoroughly before use to ensure proper function and safety.
Figure 1: The Amazon Basics Mesh Desk Chair (Model FG-50854M) in a typical office environment. This chair features a black mesh backrest, a wide padded seat, and adjustable armrests, designed for comfort and support.
The Amazon Basics Mesh Desk Chair is designed for comfort and durability, featuring a breathable mesh backrest, a wide seat with thick, high-density foam cushioning, and integrated lumbar support. It is built to accommodate a high load capacity and offers various adjustments for personalized comfort.
Safety Information
WARNING: To ensure safe use, do not exceed the maximum load capacity of 181.4 kg (400 pounds). Verify that the chair is properly assembled and adjusted before each use. Improper use may result in injury.
- Always follow assembly instructions carefully.
- Do not stand on the chair.
- Do not use the chair if any parts are damaged or missing.
- Keep children away from the chair during assembly. Small parts may be a choking hazard.
- Use the chair only on a level surface.
Components and Assembly
Before assembly, ensure all components are present and undamaged. Refer to the diagram below for identification of key parts and adjustable features.
Figure 2: Chair Components and Adjustable Features. This image illustrates the main parts of the chair, including the mesh backrest, padded seat, armrests, pneumatic height adjustment lever, and 360-degree swivel base with caster wheels.
Assembly Steps
Assembly typically involves attaching the base to the pneumatic cylinder, then the seat and backrest. Specific tools may be included or required. Follow the detailed instructions provided in the packaging for your specific model.
- Unpack all components and verify against the components list.
- Insert the caster wheels into the base.
- Place the pneumatic cylinder into the center hole of the base.
- Attach the seat mechanism to the underside of the seat cushion.
- Mount the backrest to the seat mechanism.
- Place the assembled seat and backrest onto the pneumatic cylinder.
- Attach the armrests to the seat.
- Test all adjustments to ensure proper function.
Operating Instructions
Height Adjustment
To adjust the seat height (range: 47-55 cm):
- To raise the seat: Lift the height adjustment lever while taking your weight off the seat. Release the lever at the desired height.
- To lower the seat: Lift the height adjustment lever while seated. Release the lever at the desired height.
Armrest Adjustment
The armrests are adjustable in height (range: 65-72 cm from the floor). Locate the adjustment buttons or levers on the armrests and press them to move the armrests up or down. Release to lock in place.
Lumbar Support Adjustment
The chair features an ergonomic design with adjustable lumbar support. Locate the knob on the back of the chair's backrest. Rotate the knob to increase or decrease the intensity of the lumbar support to suit your preference.
Swivel and Mobility
The chair is equipped with a 360-degree swivel function and five caster wheels for easy mobility. Ensure the wheels are clean and free of debris for smooth movement.
Maintenance
- Cleaning: Wipe the chair with a soft, damp cloth. For mesh and fabric parts, use a mild soap solution if necessary, then wipe with a clean, damp cloth and allow to air dry. Avoid harsh chemicals.
- Inspection: Periodically check all screws and bolts to ensure they are tight. Retighten if necessary.
- Casters: Keep caster wheels free of hair and debris to ensure smooth rolling.
- Storage: Store the chair in a dry environment, away from direct sunlight and extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height. | Pneumatic cylinder malfunction or lever not engaged. | Ensure the lever is fully engaged. If the issue persists, the pneumatic cylinder may need replacement. |
| Chair is wobbly or unstable. | Loose screws or improper assembly. | Check and tighten all screws and bolts. Re-verify assembly steps. |
| Caster wheels do not roll smoothly. | Debris caught in wheels or damaged casters. | Clean any debris from the wheels. Replace damaged casters if necessary. |
| Squeaking noises. | Loose connections or friction between parts. | Tighten all connections. Apply a small amount of silicone lubricant to moving parts if needed. |
Specifications
Figure 3: Chair Dimensions. This diagram provides detailed measurements for the chair's width, depth, and height, including seat dimensions, backrest height, and armrest height.
| Feature | Detail |
|---|---|
| Brand | Amazon Basics |
| Model Number | FG-50854M |
| Color | Black |
| Material | Plastic, Metal, Mesh Fabric, High-Density Foam |
| Overall Dimensions (W x D x H) | Approx. 77.5 cm x 75 cm x 106 cm (Max Height) |
| Seat Dimensions (W x D) | 58 cm x 56 cm |
| Seat Height Adjustment Range | 47 cm - 55 cm |
| Armrest Height Adjustment Range (from floor) | 65 cm - 72 cm |
| Backrest Height | 69 cm (from seat) |
| Load Capacity | 181.4 kg (400 lbs) |
| Product Weight | 18.82 kg |
| Features | Mesh back, wide padded seat, adjustable lumbar support, adjustable armrests, 360-degree swivel, 5-point caster base. |
Figure 4: Seat Cushion Construction. This diagram illustrates the four layers of the seat cushion: fabric, top foam, low-rebound main foam, and plywood base, highlighting the 8cm thick high-density foam for comfort.
Warranty and Support
This Amazon Basics product is covered by a 1-year domestic warranty in Japan from the date of purchase, provided by Amazon LLC. For warranty claims, technical support, or any inquiries regarding your product, please contact Amazon customer service through your purchase history on Amazon.co.jp.
Please have your purchase details and model number (FG-50854M) ready when contacting support.
