Gary Fisher 2004 gary fisher bicycles Manual Do Utilizador
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CHAPTER THREE
Inspection, Adjustment & Lubrication
Introduction
Some Fisher bicycles are equipped with an internal shift
system, where gear changes are made inside the rear hub.
Determine which of the four types of internal shift systems is
on your bike and read the information for that system covered
on the following pages:
•
Shimano Nexus 8 speed
has 8 gear position indicated on
the shifter
•
Shimano 3 speed
has 3 gear position indicated on the
shifter
•
SRAM DualDrive 2 x 7
speed mixes an internal shift
system with a rear derailleur
Nexus 8 speed systems
The internal shift system consists of those parts of the bicycle
which allow you to shift gears including the shifter, rear
hub, and shift cable. The shifting mechanism is
enclosed, keeping the shifting system lubricated
for low maintenance. These instructions explain
how to inspect, adjust, and lubricate an internal
shift system.
Inspection
A properly adjusted shift system is quiet. If an
unusual noise follows any shift, or while pedaling,
your shift cable may need to be adjusted. If after
adjustment the noise persists or grows louder, stop
the bicycle and try to locate the noise. If necessary,
ask your Gary Fisher dealer to identify and correct
any problems. For more information about your
shift system consult your Gary Fisher dealer.
shift system consult your Gary Fisher dealer.
Once a month,
make sure the hub gears are
properly adjusted:
• On a Nexus 8 speed system with the shifter in
• On a Nexus 8 speed system with the shifter in
4th gear, the red lines on the pulley and the cog
joint bracket (Figure 3.5.1) should line up.
Once a month
, check the shift cable for kinks,
rust, broken strands, or frayed ends. Also check
the housing for bent ends, cuts, broken coils and
wear. If you suspect a problem with your shift cable,
do not ride your bicycle. Replace the cable and/or
Figure 3.5.1 Pulley and cog joint
bracket
bracket
Pulley
Cog joint
bracket
Shift cable clamp bolt
INTERNAL SHIFT SYSTEMS
Figure 3.5.2 Nexus shifter
Shift cable
barrel adjuster
Cable end
cover
Internal Shift Systems