R&E Stricker Reha-Entwicklungen GmbH
27
Power Assist Devices
Repair, cleaning and maintenance
Fig. 46:
Adjustments V-Brake
• In the event that the brake operates unevenly,
check.the.fine.adjustment..To.do.this,.adjust.
the 2 mm Allen screw on the brake arms.
Turn the screws clockwise to increase the
distance of the brake pad from the rim. Turn
counterclockwise to decrease the distance.
Adjust the brakes so that both sides have the
same distance to the rim.
16.5.2 Maintenance
Be sure to check the brakes regularly. Only then
can you rely on the function of the brakes and
come to a safe stop even in dangerous situations.
Pay attention to the following points when
checking the brakes:
• Are the brake shoes in good condition?
• Carefully clean the brake shoe from time to
time with emery paper or a wire brush.
• Replace worn brake pads.
• Do the brake shoes have the correct alignment
to the rim .Adjusting“)
• Do the brake shoes have the correct distance to
the rim? .adjust“)
• If the brake cables are undamaged?
• Check all places where the brake cables
come into contact with the frame.
•
If.individual.fibers.of.a.brake.cable.
are damaged, replace the brake cable
immediately.
•
Tighten.the.brake.cable.fixing.screws.
regularly.
• They generally after about 8000-10000 km
all brake cables and outer shells.
16.5.3 Squeaking brakes
Squealing brakes can have different causes.
Basically, it is a resonance effect as a result of
vibrations. Due to the different possible causes,
you may have to try several measures to eliminate
the cause. The following measures can help to
eliminate the problem.
• Adjust the brake shoe slightly higher or lower to
the.rim.flank.
• Shorten or grind the brake pads a little to make
the.braking.surface.a.little.flatter.
•
Sand.the.rim.flanks.a.little.with.fine.sandpaper.
If these measures show no effect, try brake pads
from another brake pad manufacturer or install a
Brake Booster.
16.5.4 Insufficient braking power
First check the adjustment of the brakes. The
routing of the brake cables can also have a
negative.influence.on.the.braking.performance..
Too tight radii lead to unnecessarily high hand
forces due to friction of the brake cable. Outer
sheaths that are laid too generously have the same
effect. Corroded brake cables also impair braking
performance and should be replaced.
16.5.5 Changing the brake pads
In the case of a brake shoe with replaceable brake
lining, pull the pin out of the brake shoe using a
pair of combination pliers. The brake lining can
now be pulled off. If necessary, use combination
pliers for this if the brake lining is very tight. If the
brake lining of the brake shoe cannot be replaced,
replace the entire brake shoe.
