FLEXISPOT OC4-PRO
FLEXISPOT OC4-PRO Office Chair User Manual
Model: OC4-PRO
1. Introduction
Thank you for choosing the FLEXISPOT OC4-PRO Office Chair. This ergonomic chair is designed to provide maximum comfort and support for extended periods, featuring multiple adjustment points including headrest, lumbar support, armrests, and seat height. This manual provides essential information for assembly, operation, maintenance, and troubleshooting to ensure optimal use and longevity of your chair.
2. Safety Information
- Read all instructions carefully before assembly and use.
- Ensure all components are securely fastened before using the chair.
- Do not stand on the chair or use it as a step stool.
- Do not exceed the maximum weight capacity of 400 LBS (181.44 kg).
- Keep children and pets away from the chair during assembly.
- Use the chair on a flat, stable surface.
- Avoid exposing the chair to direct sunlight or extreme temperatures.
3. Package Contents
Please verify that all components are present before beginning assembly. If any parts are missing or damaged, contact customer service.
- Armrests
- Lumbar Support
- Casters
- Gas Lift
- Headrest
- User Guide (this manual)
- Assembly Tools
- Chair Base
- Seat Cushion
- Backrest
4. Assembly Instructions
Assembly of the FLEXISPOT OC4-PRO chair is designed to be straightforward and can typically be completed within 30 minutes. A detailed user manual with step-by-step diagrams and all necessary assembly tools are included in the package. Please follow the specific instructions provided in the separate assembly guide for your model.

Image: FLEXISPOT OC4-PRO Office Chair. This image shows the fully assembled chair, highlighting its ergonomic design and mesh backrest.
5. Operating Instructions
The FLEXISPOT OC4-PRO chair offers multiple adjustment features to customize your seating experience.
5.1. Seat Height Adjustment
Locate the lever on the right side beneath the seat. To raise the seat, lift the lever while taking your weight off the chair. To lower the seat, lift the lever while seated. Release the lever at the desired height.
5.2. Recline and Tilt Adjustment
The chair features an adjustable back angle and tilt tension. Use the lever on the left side to lock or unlock the recline function. Rotate the knob located beneath the seat, usually at the front, to adjust the tilt tension. Turn clockwise to increase tension (making it harder to recline) and counter-clockwise to decrease tension (making it easier to recline).
5.3. Lumbar Support Adjustment
The multi-functional lumbar support system can be adjusted vertically and horizontally to fit the curve of your lower back. Locate the adjustment controls on the backrest to position the lumbar support for optimal comfort.
5.4. Armrest Adjustment
The 3D armrests can be adjusted in three dimensions: height, forward/backward, and pivot (inward/outward). Use the buttons or levers on the armrests to unlock and adjust them to your preferred position. Ensure they are locked securely after adjustment.
5.5. Headrest Adjustment
The headrest can be adjusted for height and angle. Gently push or pull the headrest to move it up or down, and tilt it to find the most comfortable position for your neck and head.
5.6. 360° Rotation and Casters
The chair is equipped with a 360° swivel mechanism and smooth-rolling casters for easy movement. Ensure the casters are clean and free of debris for optimal performance on hard floors.
6. Maintenance
- Cleaning: For general cleaning, wipe the chair with a damp cloth. For mesh and fabric areas, dry clean as needed. Avoid harsh chemical cleaners that may damage the material.
- Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary.
- Caster Care: Keep casters free of hair and debris to ensure smooth movement.
- Storage: Store the chair in a cool, dry place away from direct sunlight when not in use for extended periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height | Gas lift malfunction or lever not engaged. | Ensure the height adjustment lever is fully engaged. If the issue persists, the gas lift may need replacement. Contact customer support. |
| Chair squeaks or wobbles | Loose screws or components. | Check and tighten all screws and bolts, especially those connecting the seat, backrest, and base. |
| Casters do not roll smoothly | Debris caught in casters or damaged casters. | Remove any hair or debris from the caster wheels. If casters are damaged, they may need replacement. |
| Backrest does not recline or lock | Recline mechanism locked or tilt tension too high. | Ensure the recline lock lever is disengaged. Adjust the tilt tension knob counter-clockwise to reduce tension. |
8. Specifications
| Brand | FLEXISPOT |
| Model Name | OC4-PRO (Ergonomic office chair) |
| Color | Black |
| Material | Mesh & Nylon & Steel (Fill Material: Memory Foam) |
| Product Dimensions (D x W x H) | 73.9D x 73.9W x 133.1H Centimetres |
| Item Weight | 40 Pounds (18.14 kg) |
| Maximum Weight Recommendation | 400 LBS (181.44 kg) |
| Special Features | Ergonomic, Adjustable Headrest, 3D Arm Rest, Adjustable Lumbar, Tilt, Back Support, Adjustable Recliner, Adjustable Height, Tilt Tension Control |
| Assembly Required | Yes |
| Certifications | BIFMA, SGS |
9. Warranty and Support
FLEXISPOT stands behind the quality of its products. For warranty information, technical support, or assistance with parts, please contact FLEXISPOT customer service. Refer to the official FLEXISPOT website or your purchase documentation for specific warranty terms and contact details.
Customer Service: For any questions or concerns, please reach out to FLEXISPOT's professional customer service team.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.