BOLISS BLS-2818HDS High-Back Ergonomic Drafting Chair Instruction Manual

1. Introduction

Thank you for choosing the BOLISS BLS-2818HDS High-Back Ergonomic Drafting Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new chair. Please read it thoroughly before use and retain it for future reference.

This chair is designed for comfort and support in various office and drafting environments, featuring an ergonomic design, adjustable components, and durable construction.

2. Safety Information

• Always follow the assembly instructions carefully to ensure proper and safe setup.
• Exercise caution when adjusting movable parts, such as the headrest, armrests, and seat height, to prevent pinching or injury.
• Do not stand on the chair or use it as a step stool.
• Ensure all screws and bolts are tightened securely before use and periodically check for looseness.
• Do not exceed the chair's weight capacity (not explicitly stated, but generally around 250-300 lbs for similar chairs).
• Keep children away from the chair during assembly and adjustment.
• If any parts are missing, damaged, or worn, discontinue use and contact customer service for replacements.

3. Package Contents

Before assembly, verify that all components are present and undamaged. If any parts are missing or damaged, please contact customer support.

• Backrest with Mesh
• Seat Cushion (Double Layer)
• Adjustable Headrest
• Flip-Up Armrests (2)
• Gas Lift Cylinder
• Gas Lift Cover
• Star Base (5-star)
• Casters (5)
• Foot Ring
• Mechanism Plate
• Assembly Hardware (Screws, Allen Wrench)

4. Assembly Instructions

Assembly typically takes approximately 30 minutes. It is recommended to assemble the chair on a soft, clean surface to prevent damage.

1. Attach Casters to Base: Insert the five casters into the holes at the end of each leg of the star base. Push firmly until they click into place.
2. Insert Gas Lift: Place the gas lift cylinder into the center hole of the star base. Cover it with the gas lift cover.
3. Assemble Foot Ring: Slide the foot ring over the gas lift cylinder and secure it at the desired height using the adjustment knob.
4. Attach Mechanism to Seat: Align the mechanism plate with the screw holes on the underside of the seat cushion. Ensure the front of the mechanism faces the front of the seat. Secure with screws using the provided Allen wrench.
5. Attach Armrests to Seat: Attach the flip-up armrests to the sides of the seat cushion using the designated screws. Do not overtighten initially.
6. Attach Backrest to Seat: Connect the backrest to the seat assembly. Secure with screws. Once all connections are made, tighten all screws on the armrests and backrest firmly.
7. 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.
8. Attach Headrest: Insert the adjustable headrest into the top of the backrest. Adjust to your preferred height.

Front view of the assembled BOLISS BLS-2818HDS drafting chair, showcasing the double seat cushion, flip-up arms, and adjustable headrest.

Back view of the assembled BOLISS BLS-2818HDS drafting chair, highlighting the mesh backrest and lumbar support design.

Side view of the assembled BOLISS BLS-2818HDS drafting chair, showing the ergonomic profile and foot ring.

5. Operating Instructions

Your BOLISS BLS-2818HDS chair offers several adjustment features to customize your seating experience:

• Seat Height Adjustment: Locate the lever on the right side under 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 to lock the height.
• Adjustable Headrest: The headrest can be adjusted vertically to accommodate different user heights and preferences. Gently pull up or push down the headrest to find a comfortable position. It offers 4 levels of height adjustment.
• Flip-Up Armrests: The armrests can be flipped up to allow the chair to be pushed closer to a desk or to save space when not in use. Simply lift the armrests upwards until they lock into the vertical position. To lower, pull them down.
• Foot Ring Adjustment: The large foot ring can be adjusted in height to provide optimal support for your feet and legs, reducing pressure during prolonged sitting. Loosen the knob on the foot ring, slide it to the desired height, and then tighten the knob securely.
• Lumbar Support: The chair features an ergonomically designed backrest that naturally supports the lumbar region, promoting a healthy spinal curve. This support is integrated into the backrest structure.
• Reclining Function: This chair offers one reclining position. To recline, pull out the lever on the left side under the seat. Push the lever back in to lock the chair in an upright position. Note: This model does not feature a tilting mechanism.

Illustration of the flip-up armrest and adjustable headrest, demonstrating how these features can be utilized for space-saving and personalized comfort.

A user demonstrating the oversized foot ring, which provides sturdy support for legs and feet, adjustable to different heights for various scenarios.

6. Maintenance

• Cleaning: Use a soft, damp cloth with mild soap to clean the chair's surfaces. Avoid harsh chemicals or abrasive cleaners. For the mesh backrest, a vacuum cleaner with a brush attachment can remove dust.
• Hardware Check: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary to maintain stability and safety.
• Caster Care: Keep casters free of hair and debris to ensure smooth movement. Clean them regularly.
• Gas Lift: The gas lift is a sealed unit and requires no maintenance. If it fails to hold height, it may need replacement.

7. Troubleshooting

8. Specifications

• Brand: BOLISS
• Model Name: BLS-2818HDS (LB-2818HD-BLK)
• Color: Black
• Material: Nylon, Wood (Frame), Foam (Seat), Sponge (Fill)
• Product Dimensions (D x W x H): 28"D x 19.5"W x 52.8"H
• Item Weight: 46.2 Pounds
• Seat Depth: 19.3 inches
• Recommended Uses: Drafting, Office
• Back Style: Mesh
• Arm Style: Flip-Up
• Headrest: Adjustable (4 levels)
• Reclining Position Count: 1
• Tilting: No
• Required Assembly: Yes

Detailed diagram showing the dimensions of the BOLISS BLS-2818HDS drafting chair, including height, width, and depth measurements.

Visual representation of key components such as the mechanism, gas lift (SGS certified), sturdy base, and wear-resistant casters, highlighting quality and durability.

9. Warranty and Support

For any questions, concerns, or issues regarding your BOLISS BLS-2818HDS drafting chair, please contact BOLISS customer service. Refer to your purchase documentation for specific warranty details and contact information.

We recommend keeping your proof of purchase for warranty claims.