Merida City Bikes, Руководство по эксплуатации

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81
e
f
g
h
Lighting system
When riding on public roads a properly functioning
lighting set is obligatory (see the chapter “Legal require-
ments for riding on public roads”).
You should be familiar with the assembly of the lighting
set so that you can repair possible failures yourself.
The rear light
(e)
and the front lamp
(f)
are powered
by the generator (also referred to as a dynamo). They
are connected with two cables each to the generator. In
some cases the front lamp and the rear light are wired
with only one cable each the frame being in this case
the return line.
Rear light
Either bulbs or LEDs beam through a (red) diffusion disc
rearwards and are visible at best even from the side.
Nowadays most rear lights provide a stand light func-
tion that is powered by a capacitor or a battery when the
MERIDA bike has to stop at traffic lights, for example.
Front lamp
Illuminants are either bulbs, halogen lamps or one or
several LEDs, i.e. light emitting diodes, beaming white
light by means of a reflector and/or a diffusion disc on
the road lane.
Some models are fitted with a sensor that automatically
switches on the front lamp when it gets dark; the dyna-
mo must, however be activated. An additional feature of
particularly high quality front lamps is a stand light func-
tion or even daytime running lights (both with LEDs).
Bottle dynamo
A bottle dynamo (g) should be mounted with its drive
shaft vertical to the wheel axle and with its roller in full
contact to the tire. The bottle dynamo can be mounted
to the front or rear wheel. When switched on it tilts with
its roller against the tire side. To switch off the dynamo it
is tilted back in its initial position where it locks in place.
Hub dynamo
Hub dynamos
(h)
are built into the hub of the front
wheel. They are virtually non-wearing and extremely
effective. Some models are switched on electronical-
ly, some others mechanically. Hub dynamos are either
switched on by a lever at the handlebars or directly at
the front lamp. Other models offer the convenience of
being switched on and off automatically by means of
a sensor.