IKEA TOSSBERG 304.336.48 Chair instructions manual

The IKEA TOSSBERG 304.336.48 is a modern, ergonomic chair designed for comfort and durability. It features a sturdy metal frame, adjustable seat height, breathable mesh backrest, and smooth-rolling casters. Suitable for home office or workspace use. Below are key sections for safety, assembly, features, adjustment, care, and troubleshooting.

1. Features at a Glance 2. Parts Included 3. Assembly Instructions 4. Specifications 5. Adjustments and Settings 6. Proper Usage 7. Care & Maintenance 8. Safety Information 9. Warranty & Support 10. Troubleshooting

Features at a Glance

Key components: Metal frame, adjustable gas lift, mesh backrest, padded seat, 5-star base with casters, tilt mechanism.

Feature	Description
Metal Frame	Powder-coated steel for strength and stability
Adjustable Gas Lift	Allows seat height adjustment from 45cm to 55cm
Mesh Backrest	Breathable fabric for back support and comfort
Padded Seat	High-density foam with fabric cover
5-Star Base	Nylon base with five legs for stability
Casters	60mm smooth-rolling wheels for hard floors
Tilt Mechanism	Allows rocking motion with lockable positions
Armrests	Optional padded armrests (sold separately)
Weight Capacity	Supports up to 120kg (264 lbs)
Assembly Required	Tools included: Allen key

Parts Included

Unpack and verify all parts before assembly.

Seat with attached mechanism
Backrest with mesh panel
5-star nylon base
Gas lift cylinder
5 x Casters (wheels)
Plastic cover for gas lift
Assembly hardware (screws, washers)
Allen key tool
Instruction manual

WARNING! Do not discard packaging until assembly is complete. Check for damaged parts.

Assembly Instructions

Estimated assembly time: 15-20 minutes. Work on a soft surface to avoid scratches.

Attach casters: Push each caster firmly into the five holes on the base until they click.
Insert gas lift: Place the gas lift cylinder into the center hole of the base.
Attach seat: Place the seat assembly over the gas lift, aligning the holes. Secure with provided screws using the Allen key.
Attach backrest: Position the backrest onto the seat brackets. Insert and tighten the screws on both sides.
Attach plastic cover: Snap the plastic cover over the gas lift mechanism to conceal it.
Test adjustments: Ensure height adjustment and tilt mechanism work smoothly.

CAUTION! Do not overtighten screws. Ensure all connections are secure before use.

Specifications

Model: TOSSBERG 304.336.48
Dimensions (assembled): Height: 80-100cm, Width: 58cm, Depth: 60cm
Seat Height Range: 45-55cm (adjustable)
Seat Depth: 40cm
Backrest Height: 50cm
Material: Steel frame, nylon base, polyurethane foam, polyester mesh
Weight Capacity: 120kg (264 lbs)
Casters: 60mm diameter, suitable for hard floors and carpets
Color Options: Black frame with black mesh, or white frame with grey mesh
Warranty: 10-year limited warranty

Adjustments and Settings

Customize the chair for optimal comfort and support.

Height Adjustment: Lift the lever under the seat to raise/lower the chair. Release to lock at desired height.

Tilt Tension: Rotate the knob under the seat clockwise to increase resistance, counterclockwise to decrease.

Tilt Lock: Pull the lever on the right side to lock the chair in upright position. Push to release for rocking.

Backrest Angle: Fixed ergonomic angle; not adjustable.

Armrests (if installed): Height adjustable by pressing buttons on sides.

Proper Usage

For safe and prolonged use of your TOSSBERG chair.

Adjust height so feet rest flat on floor with knees at 90-degree angle.
Use the tilt mechanism for dynamic sitting; avoid sudden movements.
Do not stand on the chair or use as a step ladder.
Roll gently on casters; avoid sharp impacts.
Keep chair away from direct heat sources and moisture.

Tip: Take regular breaks and adjust sitting position throughout the day.

Care & Maintenance

Regular care ensures longevity and appearance.

Clean frame and base with damp cloth and mild detergent. Dry immediately.
Mesh backrest: Vacuum gently or use upholstery cleaner for stains.
Seat fabric: Spot clean with mild soap solution. Do not soak.
Casters: Remove hair and debris regularly to maintain smooth rolling.
Check screws and connections every 6 months; tighten if loose.

CAUTION! Do not use abrasive cleaners, solvents, or steam cleaners. Avoid excessive moisture.

Safety Information

Important safety guidelines for users.

Maximum weight capacity: 120kg. Do not exceed.
Chair is intended for one person only.
Keep fingers clear of moving parts during adjustment.
Ensure casters are clean and floor is level to prevent rolling.
Do not modify or disassemble chair beyond instructions.
Keep away from children under 3 years; not a toy.
Use on stable, flat surfaces only.

Warranty & Support

IKEA 10-year limited warranty covers manufacturing defects. Proof of purchase required.

For support, visit www.ikea.com or contact your local IKEA store. Provide model number TOSSBERG 304.336.48.

Replacement parts available through IKEA customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Chair wobbles	Loose screws or uneven floor	Tighten all screws; ensure floor is level; check casters are fully inserted.
Height adjustment not working	Gas lift issue or lever obstruction	Check lever connection; ensure no objects blocking mechanism. Contact support if faulty.
Casters not rolling smoothly	Debris or hair wrapped around wheels	Clean casters; remove hair and dirt from wheel axles.
Squeaking noises	Moving parts need lubrication	Apply silicone-based lubricant to joints and mechanisms. Do not use oil.
Backrest feels loose	Mounting screws loose	Tighten screws connecting backrest to seat brackets.
Fabric/mesh tearing	Normal wear or sharp objects	Avoid sharp items; contact IKEA for replacement cover if under warranty.

Note: For persistent issues, discontinue use and contact IKEA support.

Service: www.ikea.com or visit your local IKEA store.