HP Velotechnik trikes - Manual (Page 54)

Gear system and chain
50
Danger! Practice shifting gears
on a traffic-free street. In the course of this
make yourself familiar with the functioning
of the bar end shifters. Doing this in traffic
could distract your attention from possible
dangers.
Adjusting the gear system
Your dealer will adjust your derailleur gearing
system carefully before handing over the tri-
cycle. But during the first 300 kilometres (186
miles) of riding the cables can stretch, making
the gear indexing imprecise. The chain then
climbs only hesitantly onto the next sprocket.
Caution! Please read the manual
of the gear system manufacturer carefully
before working on the gear system.
Adjusting the gear indexing for the rear derail-
leur
Adjust the adjuster barrel where the shift ca-
ble touches the rear derailleur. Do it in small
steps of half a turn.
Check after each adjustment whether the
chain moves smoothly up to the next larger
sprocket. To do this, either turn the cranks by
hand or ride the tricycle.
When the chain climbs up easily, you need to
check that it still goes down easily onto the
smallest sprocket. If necessary turn the ad-
juster barrel a little more and then try shifting
gears again.
Danger! If the chain shifts over
the smallest or the biggest sprocket you
have to readjust the end-limit adjusters of
the rear or the front derailleur. Incorrect
adjustment can lead to the chain coming
off, getting stuck or damaging the spokes,
which may result in serious falls. The ad-
justment of the end-limit adjusters is a job
for a professional bicycle mechanic.
Danger! If the tricycle falls over,
the derailleur or its mounting can be bent
which results in a change of the derailleur
movement range. Check the movement
range and have it readjusted by your bicy-
cle mechanic, if necessary.
All moving parts of the gear system are af-
fected by wear. Cleaning and lubricating these
parts frequently can prolong the life of these
parts. However, they will have to be replaced
once worn out.
The cables have to be checked, cleaned and
serviced regularly. Expect more wear and
corrosion when the tricycle is often parked
outside in bad weather conditions.
Caution! Damaged cables that
show for example single wires have to be
changed immediately. Otherwise they may
damage your gear system. Take care that
the ends of the cables are protected with
fitting caps.