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HP
Velotechnik
Chain roller
The chain roller guides the chain below the se-
at to the rear wheel and is an essential part of
the HP VELOTECHNIK
No Squat design. It ensu-
res that no pedaling influences get into the
suspension.
The surface of the chain roller features a „si-
lent ring“ that is made of a long lasting elasto-
mer. Depending on maintenance and care it
has a life span of approx. 3000-5000 km.When
this section is worn completely the links of the
chain will run on the roller. In that case you
will notice that the chain makes more noise
while running and you should change the rol-
ler.
The chain roller consists of two parts.After
you have dismounted the chain roller you can
tear the two halves apart and change the silent
ring.
Dismounting the chain roller
Hold the nut on the left side of the frame with
a ring spanner SW 13 and undo the screw in
the chain roller with an Allen key SW 8.
Memorize the exact position of the washers.
Remove the screw together with the chain
roller from the frame. Change the chain roller.
Lubricate the shaft of the screw..
Push the screw through the chain roller, the
washer and the spacer with the retention
spring into the frame. Put on the washer on
the left side, secure the thread with L
OCTITE
and tighten the nut with 14-16 Nm.
The bearings must not be treated with a jet of
water from a high-pressure cleaner or with
solvents since it destroys the seals and remo-
ves grease in the bearings. If the bearings don't
move smoothly anymore you'll have to replace
them.
Chain roller
Caution! The roller comes with two main-
tenance free sealed bearings.The bearings
are exchangeable. Between the bearings the-
re is a spacer that keeps the correct distan-
ce. If you forget to put in the spacer after
you have dismounted the bearings they will
be destroyed when you tighten the screw
while remounting them.