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Demount the Tire
Demounting a Tire is the process of taking a Tire off a Wheel. Specifically, you need to pull the top
Bead over the top of the Rim, then pull the bottom Bead also over the top of the Rim.
⚠
CAUTION
During demounting, the Bead goes over the Demount Lip of the Mount/Demount Head but stays
under the Mount Lip. See
⚠
WARNING
To demount a Tire:
1. Make sure you are wearing OSHA-approved (publication 3151) personal protective equipment:
leather gloves, steel-toed work boots, back belts, hearing protection, and ANSI-approved eye
protection (safety glasses, face shield, or goggles).
2. Verify that the Tire's Beads are broken all the way around and on
3. Apply Tire Lubricant to both the top and bottom Tire Beads and the top Rim.
This helps slide the Beads over the Rims more easily.
4. Move the Mount/Demount Head into position, very close to the Rim
lock it in position using the Control Button on the Adjustment Handle.
At this point, the top Bead is under both the Mount Lip and the Demount Lip; it needs to be
brought up over the top of the Demount Lip.
5. Push the top Bead on the side of the Tire opposite the Mount/Demount Head into the Drop Center
of the Wheel.
This gives you some extra room to help pull the top Bead over the Demount Lip.
Side view. Not necessarily to scale.
6. Take the Bead Lifting Tool, position one end on the outside of the Demount Lip of the
Mount/Demount Head, then slide it down between the Demount Lip and the top Tire Bead until it
is just past (and a little under) the Bead.
R80EX Tire Changer
You
must
use Tire Lubricant; this makes the Tire demount more easily and helps
to prevent damage to the Wheel and/or the Tire.
Mount/Demount Heads
The following procedure
Do not
try to demount a Tire whose Beads are not broken on both sides; you
could damage the Wheel, the Tire, or even injure yourself or bystanders.
for additional information.
requires
that the Tire's Beads are broken on both sides.
47
both sides
of the Tire.
but not touching it
P/N 5900087 — Rev. B — Jan. 2020
, and
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