Checking The Tyres; Checking The Rims; Check And Correct Tyre Pressure; Dunlop Valve - Bosch KETTLER KB064-ZAFD Series Translation Of The Original Operating Instructions

Notice
If the tyre pressure is too low in the tyre, the tyre
does not achieve its load bearing capacity. The
tyre is not stable and may come off the rim.
If the tyre pressure is too high, the tyre may burst.
 Check the tyre pressure as per specifications
 Adjust the tyre pressure as necessary.
 Check tyre wear.
 Check the tyre pressure.
 Check the rims for wear.
• The rims of a rim brake with invisible wear
indicator are worn as soon as the wear indicator
becomes visible in the area of the rim joint.
• The rims with visible wear indicator are worn as
soon as the black, all-round groove on the pad
friction surface is no longer visible. We
recommend that you also replace the rims with
every second brake lining replacement.
 Check the tension of the spokes.
7.4.2

Checking the tyres

 Check the tyre wear. The tyre is worn if the
anti-puncture protection or the carcass cords
are visible.
 A specialist dealer will need to change the tyre
if it is worn.
7.4.3

Checking the rims

 Check the rims for wear. The rims are worn as
soon as the black, all-round groove on the pad
friction surface becomes invisible.
 Worn rims must be replaced by a specialist
dealer.
 We recommend that you also replace the rims
at the same time as every second brake lining
replacement.
MY20K01-12_1.0_12.06.2019
7.4.4

Check and correct tyre pressure

7.4.4.1 Dunlop valve

The tyre pressure cannot be
measured on the simple
Dunlop valve. The tyre
pressure is therefore measured
in the filling hose when
pumping slowly with the bicycle
pump.
It is recommendable to use a
bicycle pump with a pressure
gauge. The operating
instructions for the bicycle
pump must be adhered to.
Unscrew and remove the
valve cap.
Connect the bicycle pump.
Pump up the tyre slowly and
pay attention to the tyre pressure in the
process.
 Correct the tyre pressure according to
specifications in the Pedelec pass.
 If the tyre pressure is too high, unfasten the
union nut, let out air and tighten the union nut
again.
 Remove the bicycle pump.
 Screw the valve cap tight.
 Screw the rim nut gently against the rim with
the tips of your fingers.

7.4.4.2 Presta valve


It is recommendable to use a
bicycle pump with a pressure
gauge. The operating
instructions for the bicycle pump
must be adhered to.
Unscrew and remove the
valve cap.
Open the knurled nut around
four turns.
Carefully apply the bicycle
pump so that the valve insert is
not bent.
Cleaning and servicing
96