1. Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of your VINGLI Criss Cross Office Chair. Designed for comfort and versatility, this extra-wide chair features adjustable flip-up arms, a tilting mechanism, and smooth-rolling casters, making it suitable for various home and office environments.
Please read this manual thoroughly before assembly and use to ensure proper function and safety.
2. Safety Information
- Always follow the assembly instructions carefully.
- Keep fingers and other body parts away from moving parts when adjusting armrests or the tilting feature.
- Do not exceed the maximum weight capacity of 330 lbs (150 kg).
- Always use the chair on stable and even surfaces.
- Ensure all bolts and screws are securely tightened before use and periodically check for tightness.
3. Package Contents
Please verify that all components are present before beginning assembly. Refer to the included packing list for a complete inventory. If any parts are missing or damaged, contact customer support.
Figure 3.1: Exploded view of chair components, including the seat, backrest, armrests, gas lift, base, and casters.
4. Assembly Instructions
Follow these steps to assemble your VINGLI Criss Cross Office Chair. It is recommended to assemble the chair on a soft, clean surface to prevent damage.
- Attach Casters to Base: Insert the five casters into the holes at the end of each leg of the chair base. Push firmly until they click into place.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the assembled chair base.
- Attach Mechanism to Seat: Align the seat mechanism with the pre-drilled holes on the underside of the seat cushion. Secure with screws, ensuring the front of the mechanism faces the front of the seat.
- Attach Armrests to Seat: Secure the armrests to the sides of the seat cushion using the provided screws. Ensure they are oriented correctly for the flip-up function.
- Attach Backrest to Seat: Connect the backrest to the seat assembly using the designated screws.
- Connect Seat Assembly to Gas Lift: Carefully place the assembled seat onto the gas lift cylinder, ensuring the tapered end of the gas lift fits securely into the mechanism.
Figure 4.1: Visual guide for chair assembly, showing the sequence of connecting the base, gas lift, seat mechanism, armrests, and backrest.
5. Operating Instructions
5.1 Adjusting Chair Height
To adjust the chair height, locate the lever under the right side of the seat. While seated, pull the lever up to lower the chair. To raise the chair, stand up slightly and pull the lever up. Release the lever at the desired height.
5.2 Using the Tilting Feature
The chair features a 90°-121° rocking function. To engage or disengage the tilt, push or pull the tilt-rock lock lever located under the seat. To adjust the tension of the tilt (swing amplitude), rotate the round knob located at the front of the mechanism under the seat. Turn clockwise to increase tension (stiffer tilt) and counter-clockwise to decrease tension (looser tilt).
Figure 5.1: Demonstrates the chair's tilting range (90°-121°) and highlights the tilt-rock lock and tension adjustment knob.
5.3 Adjusting Flip-Up Armrests
The armrests can be folded up 180° to allow the chair to be pushed further under a desk or for users who prefer sitting without armrests. To flip them up, simply lift them upwards. To return them to the down position, push them down until they lock into place. The armrests are also height-adjustable; press the button on the side of the armrest and slide it up or down to your preferred height.
Figure 5.2: Shows the effortless height adjustment and one-press foldable design of the chair's armrests.
5.4 Mobility
The chair is equipped with 360° swivel and smooth, silent casters, allowing for effortless movement across various floor surfaces including carpet, hardwood, and tile. The casters are designed to minimize noise during movement.
Figure 5.3: Depicts the 360° free rotation and silent casters, suitable for carpet, hardwood, and tile floors.
6. Maintenance
- Cleaning: For the chenille velvet upholstery, gently spot clean with a damp cloth and mild soap. Avoid harsh chemicals. For general cleaning, vacuum with a soft brush attachment.
- Casters: Periodically check casters for hair or debris that may hinder smooth movement. Clean as needed.
- Hardware: Regularly inspect all screws and bolts to ensure they remain tight. Re-tighten if necessary to maintain stability and safety.
- Gas Lift: The gas lift is a sealed unit and requires no maintenance. If it fails to function, contact customer support.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair is wobbly or unstable. | Loose screws or bolts. | Check and tighten all assembly screws and bolts. Ensure the gas lift is fully seated in the base. |
| Chair height adjustment not working. | Gas lift malfunction or lever issue. | Ensure the lever is fully engaged. If the issue persists, the gas lift may need replacement. Contact support. |
| Casters not rolling smoothly. | Debris in casters or damaged casters. | Remove any hair or debris from the caster wheels. If damaged, casters may need replacement. |
| Tilting feature not working or too stiff/loose. | Tilt-rock lock engaged/disengaged incorrectly or tension not adjusted. | Ensure the tilt-rock lock lever is in the correct position. Adjust the tilt tension knob as described in Section 5.2. |
| Armrests do not flip up or adjust. | Mechanism obstruction or damage. | Check for any obstructions. Ensure the adjustment button is fully pressed when adjusting height. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | VINGLI |
| Model Number | VINGLI-CrissCross-001 |
| Color | Light Blue-green |
| Material | Chenille (Upholstery), Foam (Fill), Engineered Wood (Frame) |
| Product Dimensions (D x W x H) | 25.6"D x 30.3"W x 32.3"H |
| Seat Depth | 19.3 inches |
| Maximum Weight Recommendation | 330 Pounds |
| Tilting Feature | 90°-121° Rocking |
| Armrests | Adjustable Height, 180° Flip-Up |
| Mobility | 360° Swivel, Silent Casters |
| Assembly | Required, instructions included |
Figure 8.1: Visual representation of the chair's dimensions and 330 lbs weight capacity.
Figure 8.2: Illustrates the three-layer seat cushion construction: fuzzy chenille velvet, high-density foam, and sturdy plank.
Figure 8.3: Highlights the material properties including super rebound, soft touch, padded armrests, and breathable, skin-friendly fabric.
Figure 8.4: Details the chair's construction with a cloud-like backrest, 360° silent casters, reinforced chassis, and dual-layer gas lift.
9. Warranty and Support
The VINGLI Criss Cross Office Chair is backed by a manufacturer's warranty. For specific warranty details and duration, please refer to the documentation included with your purchase or contact VINGLI customer service directly. Optional protection plans (e.g., 2-Year or 3-Year Protection Plan) may be available for extended coverage.
For customer support, technical assistance, or to report missing/damaged parts, please contact VINGLI-Direct, the seller, through your purchase platform or visit the official VINGLI website for contact information.
Your purchase is also covered by a 30-day refund/replacement return policy.