Multi-piece grader & Off-Highway tubeless
tire rims
Demounting Instructions
32 |
Wheel & Rim Safety Manual
CAUTION:
Always completely deflate tire by removing valve core before removing the tire from vehicle or
before attempting any other demounting operation. Check the valve stem by carefully running a piece of
wire through the stem to make sure it is not plugged. See Safety Procedures & Standards for Off-Highway
Rim Wheels. After complete deflation, place the assembly on the floor with the loose flange side up and
proceed in order of the steps below.
Tools Required:
2 Goose-necked beads unseating tools; rubber lubricant; and babbitt hammer.
1
1. Drive the goose-necked ends of the unseating
tools between the tire and flange about 5”
(127 mm) apart.
2
2. Pry both tools outward and sideways through
an arc of about 70. Be careful to avoid tearing
the chafer fabric. Leave one tool in position
and place the second about 5” (127mm)
beyond. Repeat the above operation in
successive steps until the tire bead is
completely unseated.
3
3. After the tire bead is unseated, stand on the
flange and tire sidewall to depress the flange
down along the rim base; then try to pry the
lock ring.
4
4. Hold the side flange down with hooked end
of tool to remove the sealing ring from sealing
groove.
