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Heavy Duty Chair 

With High Back

2

Assembly Instructions

STEP 4
Attach Backrest "J" to the read of 

Mechanism "H" with Backrest Screws "K". 
NOTE: Fully tighten all screws.

STEP 5
Insert Gas Lift "M" into hole on Base "B".

STEP 6
Place seat assembly onto Gas Lift "M". 

Push firmly on the chair rseat to securely 

attah seat assembly to seat post.

LUMBAR SUPPORT HEIGHT ADJUSTMENT

To adjust lumbar support height, simply pull up or push down the lumbar 

support (1).

ARM HEIGHT ADJUSTMENT

To adjust arm height, push button (2) in to allow the arms 

to move up or down freely, release button (2) once the desired 

height is reached.

BACKREST ANGLE ADJUSTMENT

Push lever (3) back for free float. Push lever (3) forward to lock backrest in 

position. To unlock, push lever (3) back and lean back slightly to release lock.

SEAT SLIDE ADJUSTMENT

Lift lever (4) up to slide seat forward or backward. Release lever (4) to lock 

the desired seat position.

SEAT HEIGHT ADJUSTMENT

To raise seat height, remove pressure from the seat and lift lever (5). 

To lower seat height, sit on the chair and lift lever (5).

TILT TENSION

Turn knob (6) clockwise to increase tension and counter-clockwise to 

decrease or ease the tension.Be careful not to loose the knob completely. 

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