Corghi JOLLY - Tyre Demounting; Tyre Mounting; Special Tools

36 JOLLY Operator’s manual
TYRE DEMOUNTING
- Set the swing arm and vertical slide with the lever M (fig. 18) so that the lower part C
touches the edge of the rim (fig. 19).
- Close lever M to lock the vertical slide C. Release lever M and the vertical slide will
automatically move away from the rim (fig. 20).
To adjust the vertical slide position, use the handwheel N (fig. 21).
- Insert and position the bead lifting tool I between the mounting slide and the tyre
bead (fig. 22a).
When working with alloy wheels or wheels with delicate paintwork, you are advised to
remove the bead lifting tool before proceeding with the demounting.
WARNING
Grip the bead lifting tool firmly during use.
- Raise the upper bead to above the rear part of the demounting vertical slide and
force part of the upper bead into the rim groove by pushing down on the tyre on the
opposite side to the vertical slide (fig. 22b).
- Start the demounting procedure by pressing lightly and repeatedly on pedal F (fig.
23).
- Rotate the wheel through one complete turn, pressing down with the hands on the
side of the tyre opposite to the vertical slide, so that the bead is positioned in the
central rim groove (fig. 24).
- Move the horizontal swing arm to position D to remove the inner tube from the tyre
(fig. 25).
- To take out the second bead, repeat the above procedure (fig. 26).
TYRE MOUNTING
WARNING
Always check that the size of the tyre is compatible with the size of the wheel before
proceeding with mounting.
- Before starting the mounting procedure, lubricated the beads (fig. 27).
Lubricated beads are easier to handle and are protected against possible damage.
Make sure that the tyre is in good condition without any signs of damage.
- Position the tyre over the wheel and move the swing arm to the work position.
Position the lower bead under the front part of the vertical slide. Press the pedal
to turn the table top clockwise and mount the bead. Make use of the rim groove by
pressing on the right-hand wall of the tyre to reduce the torsional stress on the bead
during the rotation.
- After mounting the lower bead, repeat the same procedure for the upper bead.
- Turn the swing arm to position D, free the wheel and inflate the tyre.
Special tools
To facilitate mounting/demounting of low-profile tyres, it is advisable to use the bead
presser pliers (optional accessory).