Checking And Adjusting The Tyre Pressure - Presta Valve; Checking And Adjusting The Tyre Pressure - Schrader Valve; Brake System; Checking The Brake Linings For Wear - Bosch BULLS Twenty 6 EVO Translation Of The Original Operating Instructions

7.4.1.4 Checking and adjusting the tyre
pressure – presta valve
Only applies to pedelecs with this equipment

It is recommendable to use a
bicycle pump with a pressure gauge.
The operating instructions for the
bicycle pump must be adhered to.
1Unscrew and remove the valve
cap.
2Open the knurled nut around four
turns.
3Carefully apply the bicycle pump
so that the valve insert is not bent.
4Pump up the tyre slowly and pay
attention to the tyre pressure in the
process.
5 Correct the tyre pressure as per the
specifications on the tyre.
6 Remove the bicycle pump.
7 Tighten the knurled nut with your fingers.
8 Screw the valve cap tight.
9 Screw the rim nut gently against the rim with
the tips of your fingers.
7.4.1.5 Checking and adjusting the tyre
pressure – Schrader valve
Only applies to pedelecs with this equipment

It is recommendable to use a
bicycle pump with a pressure
gauge. The operating instructions
for the bicycle pump must be
adhered to.
1Unscrew and remove the valve
cap.
1
2Attach the bicycle pump.
3 Pump up the tyre slowly and pay attention to
the tyre pressure in the process.
 The tyre pressure has been adjusted as per the
specifications.
4 Remove the bicycle pump.
5 Screw the valve cap tight.
6 Screw the rim nut (1) gently against the rim
with the tips of your fingers.
MY20B01 - 52_1.0_02.10.2019
7.4.2

Brake system

CAUTION
!
Crash caused by brake failure
Worn brake discs and brake linings, as well as a
lack of hydraulic fluid in the brake cable, reduce
the braking power. This may cause a crash with
injuries.
 Check the brake disc, brake linings and
hydraulic brake system on a regular basis.
Contact your specialist dealer if any of these
components are worn.
The maintenance interval for the brake depends
on the weather conditions and how frequent the
pedelec is used. If the pedelec is used under
extreme conditions such as rain, dirt or high
mileage, maintenance must be performed more
frequently.
7.4.3

Checking the brake linings for wear

Check brake linings after brake has been fully
applied 1,000 times.
1 Check that the brake linings are no less than
1.8 mm wide at any point and no less than
2.5 mm between the brake lining and
supporting plate.
2 Push brake lever and hold. In doing so, check
the transport safety wear gauge can fit
between the brake lining supporting plates.
 The brake linings have not reached their wear
limit. Contact your specialist dealer if any of
these components are worn.
7.4.4

Checking the pressure point

 Push brake lever and hold several times.
 If you are unable to clearly detect the pressure
point and it changes, the brake needs to be
vented. Contact your specialist dealer.
Cleaning and servicing
85