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Shimano drum brake (Inter-M)
If any of the following signs occur when braking,
you must not ride any further:
1) abnormal braking noises, or
2) unusually high braking power or
3) unusually weak braking power.
In these cases, consult a specialist workshop.
The brake drum can get very hot after prolonged braking;
the brakes should therefore not be touched for at least
30 minutes after riding.
Check that the front brake is fixed correctly to the hub by
means of the brake unit fixing nut.
Check whether the hub axle is touching the inner side of the fork and whether the
wheel is fixed correctly to the frame by means of the quick release; a loose connection
can lead to serious accidents.
Braking performance may be reduced by a rusty brake cable. In this case, replace the
brake cable by a new, original brake cable and check the brake function again.
The Inter-M brake differs from conventional band brakes in that the brake
drum is filled with grease. The rotational resistance of the wheel can increase slightly,
especially in cold weather.
The Inter-M brake is equipped with a modulator to control the braking force exerted
on the hub. When the brake is operated, the modulator generates noises. However,
these noises do not indicate a fault.
If you operate the Inter-M brake strongly when the bicycle is at a standstill and pull
on the wheel, you will notice a small amount of play. This is normal and does not
cause any problems when riding.
Front wheel roller brake
Dismantling
(before removing the wheel)
➢
Push the cam plate as far as it will go.
Then push the connecting piece
along the groove in the cam plate to
remove it.
If it is difficult to remove the
connecting piece, the cable adjusting
screw must be turned to the right in
order to decrease the cable tension first.
Assembly
(after fitting the wheel)
➢
To attach the brake cable, the above
steps must be performed in the reverse order. When attaching the connecting
piece to the cam plate, it must pushed until it latches. Check that the connecting
piece is located correctly in the position shown.
The rivet must be located in the middle of part A of the cam plate.
➢
Pull the brake lever and check the brake function.
If the brake does not function properly, the brake cable must be adjusted.
30
RE
L
EA
SE
GREASE
1
2
Auf die Seite
herausschieben
Verbindungsstück
Wenn die Nockenplatte nach
oben gedrückt ist
Nut
RELEASE
GREASE
3
Stark nach unten ziehen
Verbindungsstück
Nut
RELEASE
Teil A der Nockenplatte
Verbindungsstückniete
Connecting piece rivet
Part A of the cam plate
Push out to the
side
When the cam plate is
pushed upwards
Pull downwards strongly
Groove
Connecting piece
Groove
Connecting piece
DCW BedienA_GB UNI.qxd 24.10.2007 12:50 Uhr Seite 30