Disc Brake; Back-Pedal Brake - Bosch KETTLER KB064-ZAFD Series Translation Of The Original Operating Instructions

The hydraulic rim brake features a locking lever.
Figure 10: Rim brake locking lever, closed (1) and open (2)
The rim brake locking lever is not marked with any lettering.
Only a specialist dealer may set the rim brake locking lever

3.1.3.2 Disc brake

3
4
Figure 11: Pedelec brake system with a disc brake –
example
1 Brake disc
2 Brake calliper with brake linings
3 Handlebars with brake lever
4 Front wheel brake disc
5 Rear wheel brake disc
On a pedelec with a disc brake, the brake disc is
screwed permanently to the wheel hub.
The brake lever is pulled to increase brake
pressure. The brake fluid is used to transfer
pressure through the brake lines to the cylinders
in the brake calliper. The braking force is boosted
by a speed reduction and applied to the brake
linings. These apply the brake disc mechanically.
If the brake lever is pulled, the brake linings are
pressed against the brake disc and the wheel
movement is decelerated until it comes to a stop.
MY20K01-12_1.0_12.06.2019

3.1.3.3 Back-pedal brake

3
Figure 12: Pedelec brake system with a back-pedal brake
– example
1 Rear wheel rim brake
2
2 Handlebars with brake lever
3 Front wheel rim brake
4 Pedal
5

Back-pedal brake

The back-pedal brake stops the movement of the
rear wheel when the rider pedals in the opposite
direction to the direction of travel.
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5
2
1
4 5
Overview
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