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9.5 Tyre wear is excessive
Rear wheel tyre should not slip
With correct adjustment, regular main-
tainance and controll of the setting, as
well as if the tyres fit properly, tyre wear
only increases minimally. If, contrary to
expectations, it is higher, it is a sign that
the tyre is slipping.
Here, you should check the tyre pres-
sure and setting and adjust them if
necessary,
see pp. 25-30
.
If the tyre wear only increases at one
spot on the tyre, this indicates radial
run-out. In this case, replace the tyre
and check the rim for radial run-out.
9.6 Friction roller coating wears out very quickly
Friction roller coating worn
The friction roller coating on the drive
unit is a wearing part. When delivered,
it is coloured in black. After a short time,
a red colour shines through, which does
not yet represent wear.
However, if you can see the fabric or
even the metal in a very short time, it
indicates that the drive is not adjusted
correctly. Rough/knobble profile can
also lead to increased tyre and friction
roller wear. In this case, check the set-
ting and change the tyre.
9.7 HMSoft appears in the add-e NE
X
T smartphone app
Serial number is not displayed
It can happen that the serial number
does not appear in the add-e NE
X
T
smartphone app. Instead, only HMSoft is
displayed.
The drive unit provides assistance, but
cannot read off any values or perform a
software update.
This error code indicates that problems
exist with the Bluetooth module. In this
case, contact your specialist retailer or
