Mercedes-Benz Unimog Operating Instructions Manual page 327

X
All vehicles: loosen all wheel nuts and
remove all but two opposing wheel nuts.
X
Do not unscrew the last two wheel nuts
until the wheel is resting on the wheel bolts
and is not under load.
X
Remove the wheel.
Fitting the compressed-air hose, vehi-
cles with tyre pressure control system
G
WARNING
Vehicles with tyre pressure control system:
when you unscrew the connection to the
compressed-air hose on the wheel or the tyre
valve cap on the spare wheel, air escapes
under high pressure. This can disperse parti-
cles. These can get into or irritate the eyes,
nose, mouth and ears. There is a risk of injury.
Wear protective eyewear when unscrewing.
Example: wheel removed
Example: spare wheel
X
Wear protective eyewear.
X
Unscrew connector ; from tyre valve =
and remove compressed-air hose :.
X
On the spare wheel, unscrew cap A from
tyre valve ? and screw on compressed-air
hose : with connection ; immediately
and tighten.
Fitting a wheel
G
WARNING
Oiled, greased or damaged wheel nuts, wheel
bolt threads or spherical spring washers can
cause the wheel nuts to loosen. As a result,
you could lose a wheel while driving. There is
a risk of an accident.
Never oil or grease the threads or spherical
spring washers. In the event of damage to the
threads or the spherical spring washers, con-
tact a qualified specialist workshop immedi-
ately. Have the damaged wheel nuts, wheel
bolts or spherical spring washers replaced.
Do not drive on.
! Check wheel nuts regularly for tightness.
Retighten if necessary. Replace damaged
wheel nut cover caps and wheel nut covers.
Observe the wheel nut tightening torque.
! After changing a wheel, check the tyre
pressure immediately.
Observe the notes on operating and road
safety.
When fitting a wheel:
X
Only use wheel nuts that are approved for
your vehicle.
Wheel nuts for steel wheels and light-alloy
wheels are different and must not be mixed
up.
Before fitting the wheel:
X
Lightly oil the friction contact surfaces
between the pressure plate and the wheel
nut.
X
Remove rust and dirt from the contact sur-
faces of the wheel hub, wheel rim and
wheel nuts.
Flat tyre
325
Z