B6508 - Office chair BOSS - Free user manual and instructions

Product Type	Office Chair
Brand	Boss
Model	B6508
Overall Height (min-max)	110-125 cm
Seat Height (from floor)	45-55 cm
Seat Dimensions (W x D)	50 x 48 cm
Backrest Height	55 cm
Armrests	Adjustable, 2D (height & width)
Base Material	Nylon, 5-star swivel base
Caster Type	Dual wheel casters, suitable for hard floors
Maximum Weight Capacity	120 kg
Gas Lift Class	Class 3
Tilt Mechanism	Multi-function tilt with tension control
Seat Material	Mesh fabric with high-density foam padding
Backrest Material	Breathable mesh
Frame Material	Aluminum alloy
Net Weight	16 kg
Assembly Required	Yes, tools included
Warranty	5 years
Certifications	ANSI/BIFMA X5.1

Frequently Asked Questions - B6508 BOSS

How to assemble the BOSS B6508 office chair?

Assembly is straightforward. Insert the gas lift into the base, place the seat on top, attach the backrest using the provided screws, and then install the armrests. All tools are included. Refer to the manual for detailed step-by-step instructions.

How to adjust the seat height?

While seated, lift the lever located under the right side of the seat. Your weight will lower the chair; to raise it, remove your weight and lift the lever. Release the lever at your desired height.

Can the armrests be adjusted?

Yes, the armrests are 2D adjustable. You can change the height by pressing the button on the side and sliding up or down. Width adjustment is done by sliding the armrest pad inward or outward.

What is the maximum weight capacity?

The B6508 chair supports a maximum weight of 120 kg (265 lbs). Exceeding this limit may damage the chair or cause injury.

How to clean the mesh backrest and seat?

Use a soft brush or vacuum with an upholstery attachment to remove dust. For stains, gently wipe with a damp cloth and mild soap. Avoid harsh chemicals. Allow to air dry completely.

Does the chair come with a warranty?

Yes, the Boss B6508 comes with a 5-year limited warranty covering manufacturing defects. Normal wear and tear, misuse, or unauthorized repairs are not covered.

Are replacement parts available?

Yes, spare parts such as casters, gas lift, armrests, and seat cushions can be ordered directly from Boss or authorized dealers. Contact support for part numbers and pricing.

How to fix a sinking gas lift?

If the chair sinks slowly, the gas lift may need replacement. First, ensure the height adjustment lever is fully engaged. If problem persists, disassemble and replace the gas lift with a compatible Class 3 lift.

Is the chair suitable for hard floors?

Yes, the dual wheel casters are designed for both carpet and hard floors. For extra protection, consider using a floor mat.

How to adjust the tilt tension?

Under the seat, there is a tension control knob. Turn clockwise to increase resistance (firmer tilt) or counterclockwise to decrease it (softer tilt). Adjust to your comfort level.

USER MANUAL B6508 BOSS

IMPORTANT NOTICE: HARDWARE PACKAGE IS ATTACHED ON THE BOTTOM OF SEAT CUSHION.

MODEL:B6508

(1)X1	(2)x1	(3)x1 (L)x1 (R)
Back Cushion	Seat Cushion	Left-Arm-LRight-Arm-R
(4)x1	(5)x1	(6)x1
TU026Gas Lift W/ Cover	TU005Nylon Base	Mechanism
(7)x5	(A)x6(M6*28 ARM SCREW(B)x4(M8*22 MECHANISM SCREW(C)x4(M8*25 L-bar Screw
TU015Caster

Line drawing of an office chair with a spin-down view showing the base and top (no text or symbols)

Insert and loosely tighten all screws. When assembly is completed, fully tighten all screws before using. This chair is only intended for sitting. Any other use will void the warranty.

Line drawing of an office chair with adjustable armrest and frontrest (no text or symbols)