Snap-On EEWH311A Instructions D'opération page 20

®
NOTE:
YOUR MACHINE IS SHIPPED WITH SEVERAL
REPLACEMENT PLASTIC INSERTS (INSIDE
STANDARD EQUIPMENT PACK). THE PLASTIC
INSERTS WILL HELP AVOID DAMAGE FROM
ACCIDENTAL CONTACT BETWEEN THE MOUNT/
DEMOUNT HEAD AND THE RIM. THE PLASTIC
INSERTS WILL NEED TO BE PERIODICALLY
REPLACED.
MAINTENANCE NOTE:
IF THE MOUNT/DEMOUNT HEAD NYLON INSERTS
ARE WEARING OUT PREMATURELY, THE CAUSE
IS MAINLY THE UNCORRECT POSITIONING OF
MOUNTING HEAD ON THE RIM. THIS IMPRECISION
STRESSES INSERTS WHICH KEEP GRANTING THE
RIM PROTECTION BUT REDUCE THEIR LIFE.
NOTE:
ONCE THE MOUNT/DEMOUNT HEAD IS
POSITIONED PROPERLY, IDENTICAL WHEELS
MAY BE CHANGED WITHOUT HAVING TO RESET
THE HEAD.
F. Insert the mount/demount tool between the bead
and the mount/demount head. Pry the bead onto the
mount/demount head using the mount/demount head
as the leverage point. To make this operation easier,
insure that the bead of the tire, 180º across from the
mount/demount head, is in the drop center of the
wheel. Push the tire into the drop center with your hand
or bead depressor tool if necessary.
33:It is suggested that the mount/demount tool be
removed after lifting the bead onto the mount/demount
head (Fig. 4.1-5), however, you may remove the tool
after the bead has been removed.
Fig. 4.1-5
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EEWH311A Tire Changer Operation Manual
G. Rotate the turntable clockwise (pedal down) and, at
the same time, push down on the tire sidewall to move
the bead into the drop center of the rim (Fig. 4.1-6).
Fig. 4.1-6
H. Repeat the process for removing the lower bead.
This time, lift the bead opposite to the mount/demount
head to keep it in the drop center (Fig. 4.1-7).
If you meet difficulty during this operation, use the bead
presser assist device PBA (see chapter 5.3).
Pivot the swing arm to the right and remove the tire.
Fig. 4.1-7
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Operation Manual