R76 Series of Tire Changers
38
P/N 5900346 — Rev. C — Dec. 2019
About Valve Stems
The following drawing shows a Valve Stem and its components.
This manual talks about Valve Cores and Valve Stems at multiple points:
•
When demounting a Tire
. Taking out the Valve Core lets the air out of the Tire, which
must
be done before you can demount a Tire.
It is very dangerous to do any service on a Tire if there is air in it.
There is a tool called a Valve Core Tool that makes it easy to remove a Valve Core.
•
When replacing the entire Valve
Stem
. Valve Stems are normally replaced when you mount
a
new
Tire on a Wheel.
When mounting a new Tire, BendPak Ranger recommends installing a new Valve Stem, but it is
not required. The process for replacing a Valve Stem is to cut out or pull out the old Valve Stem,
then install the new Valve Stem. This should be done after the old Tire has been demounted but
before the new Tire is mounted.
There is a tool called a Valve Stem Installer/Remover Tool (sometimes Valve Stem Puller/Remover
Tool) that can be used to both remove an old Valve Stem and install a new Valve Stem.
This tool is
not
the same tool as the Valve Core Tool, although sometimes they are sold together.
•
When inflating a Tire
. Before starting the first stage of inflating a Tire (sealing the Beads),
remove the Valve Core.
Make sure to keep it
. Removing the Valve Core allows air to move
more easily into the Tire.
Once the
second
stage of inflating a Tire (seating the Beads) is
complete
, put the Valve Core back
in.
Sealing and seating the Beads do not put too much air pressure into the Tires. Inflating the Tire,
the third stage, does. So you want the Valve Core in for the inflation stage, as that will keep the air
from coming back out of the Tire.
If you forget to put the Valve Core back in before inflating the Tire, you can put it back in when the
Tire is inflated. Just note that when you unclip the Air Chuck, the air is going to start coming out of
the Tire, which both lowers the pressure in the Tire and makes it difficult to put the Valve Core in.
Summary of Contents for R76LT
Page 58: ...R76 Series of Tire Changers 58 P N 5900346 Rev C Dec 2019 Labels...
Page 59: ...R76 Series of Tire Changers 59 P N 5900346 Rev C Dec 2019...
Page 87: ...R76 Series of Tire Changers 87 P N 5900346 Rev C Dec 2019 Maintenance Log...
Page 88: ...1645 Lemonwood Drive Santa Paula CA 93060 USA 2019 BendPak Inc All rights reserved bendpak com...
