1. Ynlieding
Thank you for choosing the Hbada E3 PRO 4.0 Ergonomic Office Chair. This chair is engineered to provide superior comfort and support for extended periods of sitting, whether for work, gaming, or relaxation. Featuring advanced adjustability and high-quality materials, the E3 PRO 4.0 is designed to adapt to your body and enhance your posture. Please read this manual carefully before assembly and use to ensure proper function and longevity of your chair.
2. Key Features
- Adaptive Dynamic Lumbar Support: 3-zone cloud wing waist support with 8-way adjustment, 3.2cm front and rear adaptive follow-up, and lockable positions.
- Ferstelbere hoofdsteun: 4-dimensional dual-axis soft cloud pillow with aluminum alloy connectors, offering 45mm up/down, 70° biaxial rotation, and 55mm fore-and-aft adjustment.
- 360° Rotating Robotic Armrests: Multi-functional armrests with basic lift, front/back adjustment, 20° upward tilt, and 360° dual-axis rotation.
- Wire Control Chassis: One-click operation for seat height, seat depth, and recline adjustments, featuring auto gravity sensing for flexible control.
- Materialen fan hege kwaliteit: Air respiratory anti-aging mesh fabric for breathability and durability, protein skin, PU, nylon components, fourth-level pneumatic rod, and high-strength steel five-claw base with double silent wheels.
- Height Adaptability: Suitable for users with heights ranging from 150cm to 195cm.

3. Assembly Ynstruksjes
Your Hbada E3 PRO 4.0 chair requires assembly. Please follow these general steps. For detailed visual guidance, refer to the included assembly diagram (if provided with your product) or the product demonstration video.
- Komponinten útpakke: Carefully remove all parts from the packaging and lay them out on a clean, soft surface to prevent scratches. Verify all components are present against the packing list.
- Befestigje tsjillen oan basis: Insert the double silent wheels into the high-strength steel five-claw base.
- Install Pneumatic Rod: Place the fourth-level pneumatic rod into the center hole of the five-claw base.
- Sitmeganisme gearstalle: Attach the wire control chassis mechanism to the underside of the seat cushion. Ensure all screws are securely tightened.
- Ferbine de sit mei de basis: Carefully place the assembled seat cushion onto the pneumatic rod.
- Backrest befestigje: Secure the backrest to the seat mechanism using the provided hardware.
- Ynstallearje earmsteunen: Attach the 360° rotating robotic armrests to the sides of the seat.
- Befestigje hoofdsteun: Install the 4-dimensional dual-axis soft cloud pillow headrest to the top of the backrest.
- Finale kontrôle: Soargje derfoar dat alle ferbiningen feilich binne en de stoel stabyl is foar gebrûk.


4. Bedriuwsinstruksjes
The Hbada E3 PRO 4.0 offers extensive adjustability to customize your seating experience. Familiarize yourself with the controls to find your optimal ergonomic position.
4.1 Seat Adjustments (Wire Control Chassis)
The wire control chassis allows for convenient one-click operation of primary seat functions.
- Seat hichte oanpassing: Pull up the lever located on the right side of the seat (refer to Figure 4, top panel). While holding the lever, raise or lower your body to achieve the desired height (45-53.5cm). Release the lever to lock the height.
- Seat djipte oanpassing: Pull the lever located on the right side of the seat (refer to Figure 4, middle panel). Slide the seat forward or backward to adjust the depth (41-46cm). Release the lever to lock the depth.
- Backrest Recline & Tilt Lock: Pull the lever located on the right side of the seat (refer to Figure 4, bottom panel). Lean back to recline the backrest to your desired angle (90-140°). Release the lever to lock the recline position. To unlock, pull the lever again.


4.2 Lumbar Support Adjustment
The adaptive dynamic lumbar support system provides personalized back comfort.
- Lumbar Support Depth: The lumbar support features a 3.2cm front and rear adaptive follow-up mechanism. It automatically adjusts to your posture.
- Lumbar Support Lock: Use the lever on the side of the lumbar support to lock it in a fixed position for consistent support.
- Back Frame Height Adjustment: The entire back frame can be adjusted up and down by 80mm to align the lumbar support with your natural back curve.
- Cloud Wing Waist Support: The three-zone cloud wing waist support offers 8-way adjustment. The left and right wings can be rotated inside and outside by 40 degrees to customize the curvature and provide precise waist protection.


4.3 Headrest Adjustment
The 4-dimensional dual-axis headrest provides comprehensive neck and head support.
- Hichte oanpassing: Adjust the headrest up or down by 45mm to align with your neck.
- Biaxial Rotation: Rotate the headrest up to 70° to find the perfect angle for your head.
- Fore-and-Aft Adjustment: Move the headrest forward or backward by 55mm to control the depth of support.


4.4 Armrest Adjustment
The 360° rotating robotic armrests offer versatile support for your arms and shoulders.
- Hichte oanpassing: Use the button on the side of the armrest to raise or lower it to your desired height.
- Oanpassing foar/efter: Skuif de earmsteunkussen nei foaren of nei efteren.
- Upward Tilt: The armrests can tilt upwards by 20° for different activities like using a phone.
- 360° Dual-Axis Rotation: Rotate the armrest pads horizontally to support various postures and activities.


4.5 Footrest Operation (Optional)
If your model includes an optional footrest, extend it from beneath the seat for leg support during recline. Retract it when not in use.

5. Underhâld
Regular maintenance will help preserve the appearance and functionality of your Hbada E3 PRO 4.0 chair.
- Cleaning Mesh Fabric: Use a soft brush or vacuum cleaner to remove dust and debris. For stains, gently wipe with a damp cloth and mild soap, then blot dry. Avoid harsh chemicals.
- Cleaning Frame and Base: Wipe metal and plastic parts with a soft, damp doek. Brûk gjin abrasive cleaners.
- Wiel ûnderhâld: Periodically check the wheels for accumulated hair or debris and clean them to ensure smooth movement.
- Fasteners oanmeitsje: Over time, screws and bolts may loosen. Periodically check and tighten all fasteners to maintain stability.
- Foarkom direkte sinneljocht: Prolonged exposure to direct sunlight can fade the fabric and degrade plastic components.
6. Probleemoplossing
As jo problemen hawwe mei jo stoel, sjoch dan nei de folgjende faak foarkommende problemen en oplossingen:
| Probleem | Mooglike oarsaak | Oplossing |
|---|---|---|
| Stoel ferstelt de hichte net | Gaslift net ynskeakele of defekt. | Ensure the lever is fully pulled up. If still not working, the gas lift may need replacement. |
| Stoel wobbelt of fielt ynstabyl | Losse befestigingen of in ûneven flier. | Check and tighten all screws and bolts. Ensure the chair is on a flat surface. |
| Wielen draaie net soepel | Pún fêst yn tsjillen. | Turn the chair over and remove any hair or debris from the wheel casters. |
| Rêchleuning leit net efteroer of slút net | Recline mechanism engaged incorrectly or obstructed. | Ensure the recline lever is fully engaged/disengaged. Check for any obstructions. |
7. Spesifikaasjes
| Eigenskip | Detail |
|---|---|
| Model | E3 PRO 4.0 |
| Item Type | Ergonomyske stoel |
| Suitable Height Range | 150-195 sm |
| Seat Hichte oanpassing | 45-53.5 sm |
| Seat djipte oanpassing | 41-46 sm |
| Backrest Recline Angle | 90-140° |
| Back Frame Height Adjustment | 80 mm |
| Lumbar Support Oanpassing | 3.2 cm adaptive front/rear, 40° wing rotation |
| Headrest Adjustment | 45 mm up/down, 70° biaxial rotation, 55 mm fore-and-aft |
| Armrest Type | 360° Rotating Lifting Handrail (Robotic Arm) |
| Five-Star Foot Material | Steel Foot |
| Netto gewicht (sawat) | 33 kg |
| Ofmjittings fan it pakket (L x B x H) | 90 x 55 x 65 sm |

8. Brûker Tips
- Find Your Sweet Spot: Take time to experiment with all the adjustment features. Small changes in seat height, depth, lumbar support, and armrest position can make a big difference in long-term comfort.
- Utilize Lumbar Support: The adaptive lumbar support is a key feature. Adjust the wings and depth to perfectly cradle your lower back, promoting a healthy spinal curve.
- Recline for Relaxation: Don't hesitate to use the recline function and optional footrest for short breaks or during less intensive tasks to relieve pressure and improve circulation.
- Armrest Versatility: The 360° rotating armrests are designed for various activities. Adjust them to support your arms whether you're typing, gaming, or using a mobile device.
9. Garânsje en stipe
Foar ynformaasje oer garânsje, technyske stipe of fragen oer tsjinst, nim dan kontakt op mei de fabrikant of jo winkelier. Bewarje jo oankeapbewiis as bewiis fan oankeap.