SRAM Rock Shox Yari 2019 Service Manual page 29

Apply grease to the air piston and seal head outer o-rings/seals.
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Insert the air spring assembly into the upper tube. Firmly push the air
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piston into the upper tube.
Insert the seal head into the upper tube and firmly press it into the
upper tube until it stops.
Retaining rings have a sharper-edged side and a rounder edged side.
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Installing retaining rings with the sharper-edged side facing the tool
will allow for easier installation and removal.
Place the tips of the retaining ring pliers into the eyelets of the retaining
ring. Guide the retaining ring with your finger to prevent the shaft from
from getting scratched while installing the retaining ring.
Use the pliers to push the seal head into the upper tube while installing
the retaining ring into the groove. Release the retaining ring pliers
when the ring is fully seated in the groove.
Confirm the retaining ring is properly seated in the retaining ring
groove by using the retaining ring pliers to rotate the retaining ring
and seal head back and forth a few times, then firmly pull down on
the air shaft.
Do not scratch the air spring shaft. Scratches on the air shaft will allow
air to bypass the seal head into the lower leg, resulting in reduced
spring performance.
Pull the shaft out until it stops.
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NOTI CE
29
Air Spring Installation