DEMO Technology I & II - page 69

127
3. La madera y sus derivados
5. Mechanism
❚❚
Whenever you use your bike
Check the tyres and air
pressure
. You might have a flat or a slow leak.
Check your
brakes
. They ensure your safety and the safety of other people.
Check the
lubrication
of the chains and gears. In wet areas or in summer, these parts can rust or rub, produce
friction and eventually break.
❚❚
Every month, if you use your bike regularly
Check the
cables
. Are they twisted or broken? Is the tension correct?
Check the
chain wheels and sprockets
. Are the teeth in good condition? Does the chain move correctly? Does it
jump, slip or rub anywhere? If any of these parts are damaged, you should replace them.
Check the
air pressure
of the tyres. The proper pressure is printed on the side of the tyre. You should always carry
an air pump and a repair kit.
Check the
lubrication
of all the moving
parts, including the chain and sprocket
mechanisms. You should also lubricate
the seat tube, the suspension, the cables
or any places where there is friction.
Check the
suspension
pressure if
you bicycle has got an air or hydraulic
suspension system. Are they adjusted
correctly for your weight?
Check the
tyres
for any cracks, damage
or excessive wear.
Check all the
nuts and bolts
on your
bicycle. Are any of them loose?
Check the
frame
of your bicycle. Are
there cracks or stress marks on any of
the tubes? These problems must be
repaired immediately.
Keep your bicycle clean!
Dust and dirt cause problems for mechanisms
because they cause friction and wear. You should clean your bicycle
carefully at least once every three months. After you clean it, you should
lubricate the moving parts. If you keep your bicycle in good condition,
you will get better use from it for much longer.
Which parts of my bicycle do I have to check?
45.
Which bicycle parts need lubrication? Why is this necessary?
Find information about different lubricants for bicycles. Which
type is best for each mechanism (brakes, gear wheels, sprockets,
chain, axle, handles, etc.)?
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