hymer BMC 550, Instruction Manual

Page: 220 / 252

13 Wheels and tyres
220
B-MC - 12/18-2 - EHG-0016-01EN
 If a trailer is connected: Detach the trailer before lifting the vehicle.
 Position the vehicle jack at the designated mounting points (see sec-
tion 13.5.3).
 Never overload the vehicle jack. The maximum permissible load is
specified on the vehicle jack's identification plate.

Use the vehicle jack only for lifting the vehicle briefly while changing
the tyre.
 Do not start the motor while the vehicle is jacked up.
 Whilst the vehicle is in a jacked up position, persons must not lie down
under it.

Do not damage the thread of the thread bolt or wheel bolt when chang-
ing the wheel.

Tighten the wheel nuts or wheel bolts cross-wise (Fig. 229).

When changing wheels (e.g. alloy wheel rims or wheels with winter
tyres), use the correct wheel bolts of the correct length and shape. Oth-
erwise the wheels may not be securely fixed or the braking system may
not work correctly.

All 4 wheels must be of the same model and size and be approved for
the vehicle.

Wheel rims or tyres that are not approved for the vehicle can jeopardize
road safety and they must be separately inspected and approved by an
accredited test centre.

Do not replace wheels cross-wise.

Protect the vehicle according to the national regulations, e.g. with a haz-
ard warning triangle.

Before changing the wheel, check the wheel rim and tyre size, the max.
tyre load and the speed index on the tyres. Only use the wheel rim and
tyre sizes stated in the vehicle documents.

The on-board tool set is adapted to the mounted wheel nuts or wheel
bolts. When alloy wheel rims are mounted, carry an appropriate tool for
the spare wheel (steel wheel rim) in the vehicle.

Further information can be found in the instruction manual of the base
vehicle.
The on-board tool set is stored in the footwell of the front passenger under
the floor plate.
13.5.2 Tightening torque
Wheel rim Tightening torque
Steel wheel rim 250 Nm ± 20 Nm
Alloy wheel rim 190 Nm ± 20 Nm