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Wheel & Rim Safety Manual
Never inflate to more than 40 psi (275 kPa) to seat tire beads. Additional inflation can cause a tire
explosion. If tire beads do not seat when the tire is inflated to 40 psi (75 kPa), deflate the assembly,
re-inspect the components, properly assemble, and follow proper inflation procedures to reinflate.
After the tire is fully inflated, inspect the tire, rim, and rings for proper seating before you remove the
assembled unit from the restraining device or safety chains.
An incorrectly assembled or damaged multi-piece rim could have components that are not firmly
locked in place.
Proper Assembly for Two-Piece Rims
Correct
Incorrect
The components in a correctly assembled
two-piece rim fit snugly and are locked
together.
An incorrectly assembled or damaged two-
piece rim could have a large gap in the side
ring. The components are not firmly locked
in place.
Proper Assembly for Three-Piece Rims
Correct
Incorrect
co ect
A three-piece rim that is correctly
assembled has firmly fitted components
that are locked together.
An incorrectly assembled or damaged
three-piece rim could have a large gap in
the lock ring. The components are not
firmly locked in place.
