Rebuilding the lift mechanism is a two part process.
Fix wobbly computer chair.
The height of the chair is normally controlled using a lever below the chair.
How would i fix this without having to spend another 100 on a computer chair.
Remove corner blocks tap out with rubber mallet if glued.
If the clamp slides off fasten it over a strip of rubber to improve the grip or try the pvc pipe method below.
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I don t see any bolts losened or gone.
The built in height adjustment will still not work properly.
This plate contains several screws and bolts as well as the adjustment lever and hydraulic lift.
If you ve got wooden chairs that wobble follow these steps and fix them for good.
If the lift mechanism in your office chair needs repair but the upholstery portion is still in good shape don t toss the chair.
Most standard office chairs are controlled by a hydraulic or pneumatic lift mechanism that allows the users to move the seat up and down to suit their body shape and desk setup.
Be sure to take care when removing the corner blocks and joints.
It goes up and down perfectly just when sat it the chair wobbles all over the place.
When the lever is pulled to one position the lift mechanism of the chair propels the chair to its top height.
Remove chair pad screws with cordless screw gun.
How to fix those pesky wobbly chairs forget playing cars and matchbooks under the legs.
Wood shrinks over time and this aging process weakens the joints.
The chair should now be unable to slide down past the clamp.
If the chair is at the wrong height move the clamp higher or lower on the cylinder.
If so tighten with the appropriate type of screwdriver flat head or phillips or with a wrench.
Examine the black plate on the bottom of the chair s seat.