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Operation of front derailleur levers
(FD-6500 / FD-5500 / FD-5501)
• Lever
: Shifts from smaller to larger front chainring.
a
F
Lever
F
a
If operation of lever a
dose not
F
complete the chainring shift stroke,
operate lever a
again for the
F
distance (X') to complete that part of
the lever stroke (X) which was short.
Full gear shift stroke
x
• Lever
: Shifts from largest chainring to intermediate
b
F
chainring.
Lever
b
F
When lever b
is operated, there is one click where trimming (the
F
noise prevention mechanism) engages,
and a second stronger click when the
gear shift stroke is completed. After
trimming, the next push will complete
the gear shift stroke to the
smaller front chainring.
complete stroke
Trimming (noise prevention operation)
If the chain is on the large front chainwheel and the
larger rear sprocket, the chain will rub in the front
derailleur plate, producing a characteristic noise. When
this happens, press lever
b
F
it clicks); this causes the front derailleur to
move slightly towards the smaller
chainwheel, thereby eliminating
the noise.
Chain position
lever
a
F
start position
Actual stroke
x'
lever
b
F
start position
Gear shift
Trim operation
Click
Click
lightly (to the point where
Movement of the
front derailleur
Operation of front derailleur levers
(FD-6503 / FD-5503 / FD-5504)
• Lever
: Shifts from smaller to larger front chainring.
a
F
Lever
F
a
If operation of lever a
dose not
F
complete the chainring shift stroke,
operate lever a
again for the
F
distance (X') to complete that part of
the lever stroke (X) which was short.
Full gear shift stroke
x
• Lever
: Shifts from largest chainring to intermediate
b
F
chainring.
Lever
b
F
• Lever
: Shifts from intermediate chainring to smallest
b
F
chainring.
complete stroke
Caution on operation
Lever
will also move when lever a
b
F
be careful not to apply pressure to lever
be careful not to press lever a
. Gears will not shift when both levers are pressed
b
F
simultaneously.
Be sure to read these service instructions in conjunction with
the service instructions for the FD-6500 / FD-6503 /
FD-5500 / FD-5501 / FD-5503 / FD-5504 before use.
2
lever
a
F
start position
1
Actual stroke
x'
lever
b
F
start position
Gear shift
Click
Click
is operated, but
F
. Similarly
b
F
when operating lever
F
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