Snap-On EEWH306A Instructions page 17

EEWH306A Tire Changer Operation Manual
D. Liberally lubricate both beads. Place the wheel WITH
DROP CENTER UP (Fig. 4.1-3a) on the turntable, and
clamp in position. Hold the tire and wheel down while
clamping.
Fig. 4.1-3
E. Gently position the mount/demount head in contact
with rim edge, now manually push the lock lever up and
lock it into place. The tool automatically moves vertically
up and away from the rim edge. Turn the swing arm
adjustment knob until the mount/demount head moves
horizontally away from the rim flange by approximately
1/16" (2mm): this is necessary to avoid any rim contact
during the changing process. (Fig. 4.1-4).
Fig. 4.1-4
NOTE:
EVERY MACHINE IS EQUIPPED WITH SEVERAL
REPLACEMENT PLASTIC
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.
Operation Manual
331
Fig. 4.1-3a
332a
INSERTS (INSIDE
MAINTENANCE NOTE:
IF THE MOUNT/DEMOUNT HEAD NYLON INSERTS
ARE WEARING OUT PREMATURELY, THE CAUSE IS
THE OPERATORS FAILURE TO CORRECTLY SET THE
SWING ARM ADJUSTMENT KNOB, CAUSING THE
INSERT TO INCORRECTLY CONTACT THE RIM.
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 under the bead and over
the support of the mount/demount head. Lift the bead
onto the mount/demount head. To make this operation
easier, insure that the bead of the tire, directly 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.
If desired, the mount/demount tool can be removed after
lifting the bead onto the mount/demount head (Fig. 4.1-
5), or you may remove the tool after the bead has been
removed.
Fig. 4.1-5
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
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