DRIVER'S MANUAL SB220GS - Training Registration System

After changing a tyre, the difference in diameter
between the fitted tyres may have
become too large (e.g. because of a
difference in tread depth and/or tyre
pressure). The ABS system cannot handle
too large a difference and will therefore be
switched off. This will cause the orange ABS
warning lamp to come on.
Depending upon the type of tyres on the
front and rear axle, this may already happen
with a worn tyre which is 2 bar below
the required pressure. Check the tyre
pressure first if the fault lamp lights up after
changing tyres.
Under extreme circumstances, no ABS
will occur!
This is why the difference in tyre diameter
of new tyres may not surpass 7.5%. (This
may occur when fitting non-regular types of
tyres on front or rear axle).
INFLATING THE TYRES
01488B
1. Remove the tyre inflating nipple’s cap,
the test connection at the passenger
entrance at main switch housing (LF)
or the test connection on the air dryer.
2. Connect the tyre inflating hose.
3. Inflate the tyres while the engine is running
and with maximum pressure in the
air reservoirs.
Note:
The entire air pressure system can be filled
externally with air via the test connection at
the passenger entrance or the test connection
on the air dryer. Note the correct line
pressure when doing so (see the Specifications).
LF version
01773B
LEAKAGE IN AIR SUSPENSION SYSTEM
If one of the air suspension bellows becomes
defective, the air delivery line leading
to both bellows on the same axle should be
disconnected. The delivery line must also
be plugged to prevent the loss of a substantial
amount of compressed air in the
reservoirs, which is also needed to operate
the brakes.
MAINTENANCE
65