LAUNCH
Tyre Changer(TWC Series)
12
Turn the fore swivel arm, and place the press block on the
tyre opposite to the mount/demount head. Lower down the
control lever to press down the block 5-6cm, then prize the
tyre bead onto the mount/demount head with tyre
lever(fig.33). (The positions of the mount/demount head
and tyre bead are described in chapter
operation
.)
Fig.33
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Move the press block to its none working position,
depress the pedal
“
“
to turn the turntable
clockwise until the rim is separated. In case of a
tubed tyre, it is advisable to keep the air inflation
valve to the right of the mount/demount head about
10 cm away to avoid damaging.
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If there is tube in the tyre, remove it first.
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Draw out the disk, and make the disk under the
lower bead, but not under rim. Insert the tyre lever
between the head and bead and press it down. Lift
the control lever up to break the bead from rim
groove. Make the lower tyre bead opposite to
mount/demount head enter into the rim groove, and
prize the lower tyre bead onto the ball protuberance
(fig.34).
Fig.34
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Restore the disk and depress pedal
“
“
until the
lower tyre bead is separated from the rim. Depress
the pedal
“
”
to lose jaws, f
inally remove the tyre
and rim.
Mounting tyre
Attention:
Check the size of tyre and rim to see if they match
each other.
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Seat the lower bead following procedures in chapter
operation
.
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If it is a tubed tyre, check first for the possible
damages. Round it onto the rim. Make sure to
keep the tube in the right position throughout the
mounting process.
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To seat the upper tyre bead, place the tyre well and
readjust position of the tyre bead (same as mount of
the lower tyre bead). Draw out the roller and make
its side surface 1
—
2cm away from margin of the rim.
Place the press block on the upper bead 20cm
clockwise away from the mount/demount head.
Press the control lever to make the press block go
down 5
—
7cm to seat tyre bead into the rim groove
(Fig. 35).
Fig.35
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Depress the pedal
“
”
to turn the turntable
clockwise. When only 10
—
15cm is left, slow down to
avoid damage of the tyre bead. Stop the motor once
there is any indication for damage. Lift the pedal to
turn the turntable counter-clockwise. Try again when
the tyre is back to the original shape.
