Adjustment Cantilever Calipers - Dynacraft SINGLE SPEED Owner's Manual

Brake pads should finally be adjusted so that the leading
edge of the pad makes first contact with the rim. Some
brakes have special curved washers to allow this, but on
less complex models it will be necessary to apply a little
force to the pad and its mounting.
ADJUSTMENT - CANTILEVER CALIPERS
Minor brake adjustment can be made via the cable adjusting
barrel, usually located on each brake lever. To adjust,
squeeze the brake pads against the rim, loosen the lock
nut, and turn the adjuster to pull the brake pads closer to,
or spread them away from the rim as required. Brake pad
clearance should be a maximum 2 mm from the rim. When
2 mm clearance
correct, retighten the locknut. If the pad cannot be set close
enough to the rim in this manner, you may have to adjust the
length of the brake cable. To adjust the brake cable length:
the main brake cable routes through a link cable to the
anchor bolt on one of the brake arms. Squeeze both arms
together so the brake shoes hit the rim, loosen the cable
anchor bolt and pull all the slack out of the cable. Retighten
the cable anchor bolt securely.
WARNING
The brake cable adjusting barrels are for minor
adjustments only. For major adjustments see the
appropriate section in the manual for the type of brakes
on your bicycle. When making adjustments with the
cable adjusting barrel attached to the brake levers, it is
recommended that the corresponding slots in the brake
lever, cable adjusting barrel and locknut not be aligned.
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DETAILED MAINTENANCE