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Twin tube dampers

Adjustment Procedure 76, 80, 82, 86, 87, 88, 90, 8040, 8240 Series

Koni dampers will always be supplied at the minimum setting, and can be adjusted as follows:

Remove the shock absorber from the vehicle and hold it vertically in your hand or with the lower eye attached in a vice. Use clamp plates to prevent damage. Under no circumstances  should the piston rod be held in a vice, this will damage the rod and could cause the damper to leak oil.

Fully compress the damper, at the same time turning the dust cap or piston rod slowly to the left (counterclockwise), until it is felt that the cams of the adjustment nut engage in the recesses of the foot valve assembly.

Some shock absorbers include a bump rubber concealed under the dust cover which must be removed prior to adjusting.  

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The damper may have already been adjusted. Therefore check whether the shock absorber is in the adjustment position or not by keeping it collapsed and gently turning it further to the left counting at the same time the half turns until a stop is felt. Stop turning then and do not use force.   

Keeping the damper compressed, make 1 half turn (180 degrees) to the right (clockwise). In case of prior adjustment add the number of half turns previously found. The total range is about 5 half turns.

Pull the damper out vertically without turning for at least 1cm to disengage the adjusting mechanism. The dust cap or piston rod may now be turned freely.

Adjustment Direction

Clockwise             = Firmer
Anit-Clockwise       = Softer

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