37
PART 1
3. Removing And Installing Wheels
Section 4. Tech
GT Bicycle Owner’s Manual
a. Adjusting the traditional cam action
mechanism (fig. 8a)
The wheel hub is clamped in place by the
force of the over-center cam pushing against
one dropout and pulling the tension
adjusting nut, by way of the skewer, against
the other dropout. The amount of clamping
force is controlled by the tension adjusting
nut. Turning the tension adjusting nut
clockwise while keeping the cam lever from
rotating increases clamping force; turning it
counterclockwise while keeping the cam
lever from rotating reduces clamping force.
Less than half a turn of the tension adjusting
nut can make the difference between safe
clamping force and unsafe clamping force.
WARNING
The full force of the cam action is needed to
clamp the wheel securely.
Holding the nut with one hand and turning the
lever like a wing nut with the other hand until
everything is as tight as you can get it will not
clamp a cam action wheel safely in the
dropouts.
See also WARNING on page 33.
b. Adjusting the cam-and-cup
mechanism (fig. 8B)
The cam-and-cup system on your front wheel
will have been correctly adjusted for your bicycle
by your dealer. Ask your dealer to check the
adjustment every six months. Do not use a
cam-and-cup front wheel on any bicycle other
than the one for which your dealer adjusted it.
3. Removing And Installing
Wheels
WARNING
If your bike is equipped with a hub brake such
as a rear coaster brake, front or rear drum,
band or roller brake; or if it has an internal
gear rear hub, do not attempt to remove the
wheel.
The removal and re-installation of most hub
brakes and internal gear hubs requires special
knowledge. Incorrect removal or assembly
can result in brake or gear failure, which can
cause you to lose control and fall.
CAUTION
If your bike has a disc brake, exercise care in
touching the rotor or caliper. Disc rotors have
sharp edges, and both rotor and caliper can
get very hot during use.
To Next Page
Loading...
