10
DUALDRIVE
MAINTENANCE
Technical Manual 2006
Problem
Hub:
Shifting difficulties
Pedals are carried forward
when freewheeling
Derailleur:
Chain jumps from smallest
sprocket to frame dropout.
Difficult or impossible to
shift chain onto smallest
sprocket.
Chain jumps over largest
sprocket and falls between
the spokes and largest
sprocket or inner cage
plate scrapes on spokes.
Delayed shifting.
Rough shifting behavior.
Chain jumps two gears on
small sprocket
Delayed shifting onto
larger sprocket
Delayed shifting onto
smaller sprocket
Cause
Incorrect gear setting
Bearings set too tight
Loose lock nuts
Rear frame dropouts non
parallel
High gear limit screw is not
adjusted properly.
High gear limit screw is not
adjusted properly.
Low gear limit screw is not
adjusted properly.
Rear derailleur or derailleur
hanger is bent.
Clearance between guide
pulley / sprocket is too large.
Clearance between guide
pulley / sprocket is too small.
Shift cable insufficiently
tensioned.
Shift cable insufficiently
tensioned.
Shift cable is too tight.
Excessive cable friction,
pinched or poorly routed
cable.
Remedy
Adjust shifting system, oil
control cable, check that cable
stop is fastened correctly.
Re-adjust bearing
Tighten lock nuts (15 – 20 Nm,
133 – 177 in.lbs.)
Bend / reorient dropouts
Turn in screw H until the
guide pulley is aligned with
the smallest sprocket.
Unscrew screw H until the
guide pulley is aligned with
the smallest sprocket.
Turn in screw L until the
guide pulley is aligned with
the largest sprocket.
Straighten or replace.
Adjust b-adjust screw by
rotating counterclockwise.
Adjust b-adjust screw by
rotating clockwise.
Turn barrel adjuster on the
shifter counterclockwise.
Turn barrel adjuster on the
shifter counterclockwise.
Turn barrel adjuster on the
shifter clockwise.
Lubricate or replace cable
and housing. Check for
excessive bending of cable
housing.
TROUBLESHOOTING
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