Snap-On EEWH331A Instructions page 16

16
4.1-4
4.1-5
4.1-6
4.1-7
4.1-8
C. Set the rim clamps to the proper position: retract clamps
to clamp the wheel from the inside and expand clamps to
clamp from the outside.
Clamping the wheels from the outside set the clamps at
diameter nearly equal to the rim diameter, before placing
the wheel on the clamps. This will avoid the risk of pinching
the tire.
NOTE: In order to make the locking of hard or lowered
tires easier, the operator can use the rim
pusher provided with the bead pusher (Item
1, Fig.4.1-4). Apply the rim pusher on the
bead pusher tool (2), position it at the centre
of the rim and low the rim as far as the clamps
(3) can lock the rim.
WARNING
TO MINIMIZE THE RISK OF SCRATCHING ALLOY
RIMS, THESE SHOULD BE CLAMPED FROM THE
OUTSIDE
D. Liberally lubricate both beads.
Place the wheel WITH DROP CENTER UP (Fig. 4.1-5)
on the turntable, and clamp in position. Hold the tire and
wheel down while clamping.
E. Position the mount/demount head in contact with the
rim edge and lock it into place: the tool automatically
moves away from the rim edge vertically. Lock the mount
dismount head into position with the yellow button (Fig.
4.1-6).
NOTE:
The plastic insert inside the mount/demount tool must
be periodically replaced. Every machine is
equipped with several plastic inserts (inside
standard equipment box). Follow the instructions
included with the replacement parts.
NOTE:
Once the mount/demount head is positioned properly,
matching wheels may be changed without
having to reset the head.
F. Rotate the wheel on vehicles equipped with TPMS
sensors so that the sensor is aligned with the back edge
of the mount/dismount head.
G. Insert the bead-lifting tool under the bead and over the
support of the mount/demount tool. Lift the bead onto the
mounting fi nger. To facilitate this operation, press with left
hand on the bead in position diametrically opposite to that
of the tool. If desired, the bead-lifting tool can be removed
after lifting the bead onto the fi nger (Fig. 4.1-7).
H. Rotate the turntable clockwise and at the same time
push down on the tire sidewall to move the bead into the
drop-center of the rim (Fig. 4.1-8).
Snap-on EEWH331A
EN