0_demounting tire – COATS ProGuard Leverless Plus Tire Changer User Manual

Page 26

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Operation Manual

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COATS PRO GUARD PLUS

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Fig. 6

20

- As soon as the bead is perfectly hooked, lift the mounting tool by raising lever ref. 20 to pull out the bead.
To make the lifting easier set the tire pressing unit at “6 o’clock” position and press the tire side (fi g. 6).
Get a further help by contemporarily lifting the lower tire side by the lower bead-loosening roller (fi g. 7).

Fig. 7

- Press down on pedal ref. 2 to rotate the wheel clockwise until the entire bead is lifted from the rim

NOTE: rim and tire must spin together as one.

1

2

3

4

Once the bead loosening process is completed, and the wheel is already positioned onto the center-plate, check and
ensure its locking and centering.

18.1 Upper bead demounting

- Turn the wheel until the valve is in the “1 o’clock” position
(roughly 10 cm - 4-inch distance from the mounting tool) in order
to avoid possible damages to the valve or the pressure
sensor.

Valve

10 cm

Mounting tool
in working
position

Fig. 5B

Fig. 5

-Press the pedal ref. 1 to position the mounting arm close to the wheel while driving.
The mounting arm by handling (fi g. 5), lock it in position 1 by ref. 19 (fi g. 5B) to lock the operating arm and the hori-
zontal arm at the same time.
Automatically the mounting tool is moved up and away from the rim border to have a
clearance of approx. 2 mm when locked
- Lower the lever ref. 20 to insert the mounting tool between the bead and the rim edge. The mounting tool should
penetrate enough to hook the tire bead to let the operator complete the tire demounting: spin slowly the wheel until the
mounting tool is positioned correctly.
A gentle pressure on the tire sidewall by the upper roller could help the mounting tool positioning.

Pos. 1

Pos. 2

Pos. 3

19

19

19

18.0_DEMOUNTING TIRE

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