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traditional rear wheel cam action system.
a.Adjustingthetraditionalcamactionmechanism(g.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
wheelsecurely.Holdingthenutwithonehandandturningthelever
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
therstWARNINGinthisSection,p.18.
b.Adjustingthecam-and-cupmechanism(g.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.
a. Removing a disk brake or rim brake Front Wheel
(1) If your bike has rim brakes, disengage the brake’s quick-release
mechanism to increase the clearance between the tire and the brake pads (See
Section 4.C g. 11 through 15).
(2) If your bike has cam action front wheel retention, move the cam lever from
the locked or CLOSED position to the OPEN position (gs. 8a & b). If your bike
has through bolt or bolt-on front wheel retention, loosen the fastener(s) a few
turns counter-clockwise using an appropriate wrench, lock key or the integral
lever.
(3) If your front fork has a clip-on type secondary retention device, disengage
it and go to step (4). If your front fork has an integral secondary retention device,
and a traditional cam action system (g. 8a) loosen the tension adjusting nut
enough to allow removing the wheel from the dropouts. If your front wheel uses
a cam-and-cup system, (g. 8b) squeeze the cup and cam lever together while