Caution, Warning, Bead loosening – COATS Extended Mobility (EMT) RunFlat Tires User Manual
Page 15
The Objective of this Section:
To identify the safe and proper loosening of both inner and outer tire beads.
Safety Issues Related to this Section:
• ALWAYS wear eye protection during tire service activity.
• ALWAYS wear durable work clothing (i.e.; tight-fitting leather gloves, steel-toed shoes, back belts).
• NEVER wear loose fitting clothing or articles, jewelry, or long hair.
• NEVER smoke or have open flames or other ignition sources in or near tire changing area.
1
Use a crayon to mark both the tire and wheel with their
location on the vehicle (i.e.; RF, LR, etc.). Check the side-
wall of the tire for any rotation and position indicators.
Remember that some low-pressure sensors are location-
specific as well. Note any offsets that may exist between the
front and rear wheels, or any difference in tire width.
Marking the tire and wheel will help you reinstall them in the
correct location later.
2
Inspect the wheel and tire for damage. Pay close atten-
tion to the rim flange–nicks or burrs here may interfere
with the mounting process or damage the tire bead. Make a
note of any damage found, and review with the customer
before continuing.
Safety glasses must be worn at all times. Air is released
from the tire with sufficient force to propel dirt and
debris into the eyes.
Never smoke or have open flames and/or other ignition
sources in or near tire changing area. A flammable gas
may have been used to pressurize the tire, and severe
personal injury or death could result.
3
Remove the valve core and allow the tire to completely
deflate. Remove all wheel weights from the wheel at this
time.
4
Roll the tire and wheel into position at the bead loosener,
with the top bead facing outward and the wheel seated
firmly against the rubber pads. The valve stem should be
positioned towards the top of the bead loosener shoe. This
position works best for wheels with existing pressure sen-
sors, and those wheels with asymmetrical safety humps..
Bead Loosening
D–1
10
min
Stop Time
D
CAUTION
!
WARNING
!