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To readjust the brakes, unscrew the knurled lock ring located at the point where
the brake cable enters the brake lever on the handlebars (a). Unscrew the
knurled, slotted adjusting bolt by a few turns. This reduces the free travel of the
brake lever. Keeping the adjusting bolt firm, tighten the lock ring against the
brake lever unit. This prevents the adjusting bolt from coming loose by itself.
Ensure that the slot of the bolt faces neither forward nor upward, as this would
permit water or dirt to enter more easily.
DANGER!
Always test the brakes' function when stationary after adjusting them and
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make sure the brake pads engage fully with the rim without touching the
tyre, when you pull them hard.
Hydraulic rim brakes
Operation and wear
Common hydraulic rim brakes consist of two brake assemblies that are mount-
ed on the left and right side of the rim and are connected by an assembly plate
and, if necessary, by a brake booster (b).
Actuating the brake lever compresses the hydraulic pistons through oil pressure,
pushing the brake pads against the rims.
The friction generated by braking causes wear to the brake pads as well as to
the rims. Frequent rides in the rain and dirt and on uneven ground can ac-
celerate wear on both braking surfaces. Some rims are provided with wear
indicators, e.g. grooves or circular indentations. If the rim is worn down to the
point where the grooves or indentations are no longer visible, they need to be
replaced.
Once the abrasion of the rim has reached a certain critical point, the rim may
break under the tyre pressure. This can make the wheel jam or the inner tube
burst, both of which can cause an accident. Risk of falling!
Keep the hydraulic brake assemblies, especially the brake pad area, clean, as
dirt can prevent the pads from travelling back in their rest position. Regularly
check the lines and connections for leaks.
a
b
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c
ORIGINAL OPERATING INSTRUCTIONS 2017
| TREKKING AND TREKKING-PEDELEC
DANGER!
Loose connections or leaky brake lines can drastically impair braking
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power. If you find leaks in the brake system or buckled lines, contact your
SCOTT dealer. Risk of accident!
Functional check
Check whether the brake pads are accurately aligned with the rims (c) and still
sufficiently thick. You can judge the wear of the brake pads by the appearance
of grooves. If the pads are worn down to the bottom of the grooves, it is time to
replace them. Be sure to observe the appropriate instructions of the respective
manufacturer.
See your SCOTT dealer and ask him to examine the remaining thickness of the
rims when you are through your second set of brake pads at the latest. Your
SCOTT dealer has special measuring devices for determining the remaining
thickness of the rims (d).
The brake pads must hit the rim simultaneously and in parallel (e). This setting is
to prevent the brake pads from screeching when applied.
The brake lever must always remain clear of the handlebars. You should not be
able to pull it all the way to the handlebars (f), not even in the event of an emer-
gency stop. If this is the case, however, observe the following chapter "Synchro-
nising and readjusting".
A correctly adjusted brake is only ensured if all of these checks have been made
successfully.
DANGER!
Adjusting the position of the brake pads relative to the rims requires a
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considerable degree of skill. Replacing and adjusting the brake pads is a job
best left to your SCOTT dealer.
DANGER!
Have your rims regularly inspected and measured by your SCOTT dealer.
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d
TREKKING AND TREKKING-PEDELEC |
ORIGINAL OPERATING INSTRUCTIONS 2017
e
f
ENGLISH
65 |
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