General safety instructions
7
Saf
ety instructions
Bolts and nuts
Screws gradually settle in and hence they can
come loose. Therefore check the screws
regularly if they are tightened appropriately
with a torque wrench.
In the tables on page 88 and 89 you will find
the prescribed tightening torques, they refer
to greased screws!
Attention!
Screws must be
tightened with prescribed tightening
torque. In this manual tightening torques
are given in "Nm“ (Newton meter). Always
use a torque wrench wherever a torque
setting is given in this manual. Never rely
on "feeling". Screws tightened too much or
not enough can break, which can lead to
dangerous accidents. In case you don't own
a torque wrench have your bicycle me-
chanic do the respective work. You will
find tables with the prescribed torque set-
tings on page 88 and 89 in this manual.
The grease also prevents your screws from
seizing in their threads so that they won't un-
screw anymore. In particular, screws made of
stainless steel are susceptible to this and
therefore have always to be put in with
grease.
Do use high quality acid free grease, if possible
a lubricant with added solid particles like Tef-
lon or MoS2. Their ingredients still work
properly after the thinner grease has been
removed from the contact surfaces.
Alternatively you can use thread locker that
you apply to the screw before you put it into
the thread.
Always check the screws very diligently for
signs of corrosion. Rust at the screw heads
may also lead to the screw seizing in the
thread. When the metallic and shiny coating
of galvanised screws comes off and discloses
dull, gray-brown steel you have to exchange
the screw.
When you exchange screws please only use
screws of the same type. Screws come in dif-
ferent strength classes. Please only use galva-
nised screws of the same type and strength,
corresponding to the German strength class
8.8 or stainless steel screws grade A2-70,
when not given any other recommendation. If
you are in doubt please ask your specialist
dealer.
Quick release levers
Quick release levers hold wheels and seat in
position.
A quick release lever consists of two basic
parts: the lever on one side provides the
clamping force. With the adjusting nut on the
other side you adjust the clamping tension on
the screw thread.
Danger!
An incompletely or im-
properly closed quick release can result in
parts coming loose and hence in a crash,
possibly resulting in serious injury.
To open the quick release, move the lever
away from the frame. In doing so the inscrip-
tion "open" should be visible on the lever.
To close the quick release, move the lever
with power in the other direction so that the
word "close" is visible on the outward side of
the lever. At the start of the lever's motion,
for, say, half of its movement, the lever should
move very easily, without any clamping action.
In the second half of the lever's movement the
force on the leer should increase considera-
