Bosch ZEMO SU-E FS 12 Translation Of Original Operating Instructions page 166

7.5.2 Checking the brake system
CAUTION
!
Crash caused by brake failure
Worn brake discs and brake linings and a lack of
hydraulic fluid in the brake cable reduce the
braking power. This may cause a crash with
serious injuries.
 Check brake disc, brake linings and the
hydraulic brake system regularly. Contact
specialist dealer.
The maintenance interval for the brake depends
on how often it is used and the weather
conditions. If the pedelec is used under extreme
conditions such as rain, dirt or high mileage,
maintenance must be performed more frequently.
7.5.2.1 Checking the handbrake
1 Check that all screws in the handbrake are
firmly in place.
 Tighten loose screws.
2 Check that handbrake is torsionally rigid on the
handlebars.
 Tighten loose screws.
3 Check that there is a gap of at least 1 cm
between the handbrake and the handle when
the handbrake is fully applied.
 Adjust the grip distance if the gap is too narrow
(see Section 6.5.9.5, Section 6.5.10.1 or
Section 6.5.9.4).
4 Check the braking effect by pedalling while
pulling the handbrake.
 If the braking power is too weak, adjust the
brake pressure point (see Section 6.5.9.8).
 Contact your specialist dealer if the pressure
point cannot be reached.
MY22Z01 - 12_1.0_25.07.2022
Cleaning, servicing and inspection
7.5.2.2 Checking the hydraulic brake system
1 Pull on the handbrake and check whether any
brake fluid leaks out of the lines, connections
or on the brake linings.
 If any brake fluid leaks from anywhere, take
pedelec out of service. Contact specialist
dealer.
2 Pull brake handbrake and hold several times.
 If you are unable to clearly detect the pressure
point and it changes, the brake needs to be
bled. Contact specialist dealer.
7.5.2.3 Checking the Bowden cables
1 Pull on handbrake several times. Check
whether the Bowden cables get stuck or they
make scraping noises.
2 Check the physical condition of the Bowden
cables for visible damage and check to see if
wire strands are broken.
 Have defective Bowden cables replaced.
Contact specialist dealer.
165