R980 Series of Tire Changers
8
P/N 5900158 — Rev. E1 — Nov. 2019
Frequently Asked Questions
Question
: What does a Tire Changer do?
Answer
:
A Tire Changer takes Tires off of Wheels (called demounting) and puts Tires onto Wheels
(called mounting).
Q
: What is the difference between a Tire, Wheel, and Rim?
A
: A Wheel is the round
metal
piece that attaches to the Vehicle’s axle. A Tire is the round
rubber
piece that surrounds the Wheel. The outer edge of the Wheel, where the Tire attaches to the
Wheel, is called the Rim. Some people use Wheel and Rim interchangeably.
Q
: What are the steps in the process of demounting a Tire and then mounting a new Tire?
A
: The steps are: Deflate the Tire, break the Bead, secure the Wheel on the Turntable, demount the
Tire, mount the new Tire, inflate the new Tire, then remove the Wheel from the Turntable.
Q
: What does “break the Bead” mean?
A
: A Tire is held on the Rim of a Wheel by the Tire Bead sitting between the Rim Lip and the Bead
Retainer of the Rim. The air pressure in the Tire holds it in place once the Bead is seated (during
mounting). When you “break the Bead”, you move the Tire Bead out of the location where it was
seated, which is needed to take the Tire off of the Wheel.
Q
: Can I break the Bead without fully deflating the Tire?
A
: No, do not do this.
Always fully deflate a Tire before attempting to break its Bead
.
The air pressure energy in a Tire, even if not fully inflated, can be considerable. If you were to
attempt to break the Bead of a Tire not fully deflated, that air pressure energy would be released
all at once, possibly injuring or, in rare cases, killing the Operator or bystanders.
Q
: What thing should I always do when working with the Tire Changer?
A
: You must match Rim Width with the Tire you are mounting. The result of a mismatch is that the
Tire could literally explode off the Wheel when you inflate it or while the Vehicle is being driven. In
both cases, people could be injured or killed.
Q
: Where should I put my Tire Changer?
A
: What you want is a flat Concrete floor with room around it that is also near where you work on
Tires. Ideally, you want it a little off the beaten path, as you must – for safety – keep everyone
away from the Tire Changer while it is in use. No one other than the Operator should be within 30
feet of the Tire Changer while it is in use.
Q
: Why isn’t there a plug on the end of the Power Cord?
A
: 220 VAC plugs vary by region, so if you are going to use a Power Cord with Plug, you need to
use a Plug that is appropriate for the power outlet you will be using. The other power option is to
wire the Tire Changer directly into the facility’s power system. You
must have
a licensed
Electrician perform all electrical work in accordance with all applicable electrical codes.
Summary of Contents for R980XR
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