Clamping A Truck Wheel - John Bean b 9200 Manuel D'utilisation

26
5.1-2
5.1-3
Operation
5.1.1

Clamping a truck wheel

The machine is delivered with an adaptor for light–truck
wheels. The relative centring cone is suitable for pitch
circles of 120 - 174 mm.
Clamping accessories for truck wheels are optional extras,
but they are indispensable for balancing the following types
of wheel:
Option A: Truck standard kit with centring cone for pitch
circle 198 - 225 mm and 270 - 286.5 mm.
Fig. 5.1-2 Option A: Clamping a truck wheel using
an adaptor and a centring cone
1 Truck wheel adaptor
2 Rim
3 Centring cone for pitch circle 198 - 225 mm or
270 - 286.5 mm
4 Wing nut for clamping
Option B: Truck professional kit with 4-arm and
5-arm star and a 5 column flange.
Fig. 5.1-3 Option B: Clamping a truck wheel
using an adaptor and a centring star
1 Truck wheel adaptor
2 Rim
3 Centring star
4 Wing nut for clamping
Note: To clamp a truck wheel with adaptor and centring
star, the golden truck wheel adaptor has to be used.
Clamping procedure
• Before clamping the wheel, check that the centre
bore is machined sufficiently accurately and not
deformed (e.g. uniformly round) and that the contact
surface of the wheel (central rim disc) is clean and
intact.
• Select and prepare a suitable clamping adaptor for
the wheel to be balanced (Fig. 5.1-2 and 5.1-3).
• Position the wheel bore at the centre of the clamping
adaptor using the loading device (Fig. 5.1-1).
• Fit the cone or centring star and partly tighten the
wheel with the wing nut.
• Raise with the loading device until the wheel can
rotate freely.
• As the wheel is further clamped continue rotating
the wheel slightly and further tighten the wing nut. In
this way the wheel will be aligned evenly with the
centring cone or centring star and will run in such a
way that it is centred without jamming on one side.
Note
For perfect balancing results the adaptors must always
be kept clean and stored correctly when not in use.
Operator's Manual b 9200