Kettler SHIMANO KS127 Series Translation Of Original Operating Instructions page 93

Operation
Increasing air pressure with EVOL air
chambers
Only applies to pedelecs with this equipment
Balance the air pressure between the positive and
negative air chambers by slowly compressing the
fork by 25% of the deflection after every increase
of the air pressure by 3.5 bar (50 psi) 10 to 20
times.
If the air chambers will not balance, it is possible
that the air pressure in the positive air chamber
could be higher than in the negative air chamber.
If the fork feels very stiff and is in the fully
rebounded position, compress fork until the air
transfer can be heard or felt. Hold fork in this
compressed position for several seconds.
Releasing air pressure from EVOL air
chambers
Only applies to pedelecs with this equipment
Slowly release air pressure so that the air can also
be released from the negative air chamber via the
air valve.
If the air pressure releases too quickly, it is
possible that the air pressure in the negative air
chamber could be higher than in the positive air
chamber. If the damper remains compressed and
does not fully rebound, increase the air pressure
until the damper rebounds. Slowly compress the
damper 10 to 20 times by 25% of the deflection.
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MY22K03 - 32_1.0_13.09.2021