Positioning Of The Mounting Head; Lever The Top Bead Over The Rim Flange - Bosch Start Line TCE 420 Original Instructions Manual

en 40 | Start Line TCE 420 | Operation
7.7.1

Positioning of the mounting head

Warning – Risk of hand injuries!
There is a risk of crushing hands when
rotating the rim-chuck plate.
¶
Do not reach between the tire and the rim
with your fingers.
1. Press the top bead by hand to leave the space for
positioning the mounting head.
2. Depress the mounting arm control pedal to move the
mounting arm to the work position.
3. Push the button on the mounting arm lock plate to
release the hexagonal shaft.
4. Move the mounting head to the work position. The
plastic part at the nose of the mounting head should
be in contact with the rim.
5. Push the button on the mounting arm lock plate lock
the hexagonal shaft.
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7.7.2

Lever the top bead over the rim flange

1. Hold the bead-lifting lever firmly while keeping
space for the mounting head.
i
If the space is not adequate, please refer to the
"Operation tips" section. The tips in the "Operation
tips" section will ensure successful bead breaking.
2. Check that the mounting head has grasped the tire
bead fully.
i
If there is inner tube, please turn the valve 10 cm
away to the right and then proceed. This will prevent
damaging the inside of the tire.
Robert Bosch GmbH