22
3
Demounting of
tubeless tires
3-5
NOTICE: Not all tire
mounting/demounting
machines work alike.
Be sure to read the
operating or instruction
manual for your particular
machine before attempting
to mount or demount tires.
Remove the valve core from the valve stem to ensure
complete deflation. Place wheel on machine and
position tool so flat end can be driven between tire
bead and rim flange. Straighten tool to a vertical
position until bead is separated from wheel.
Repeat procedure at intervals until bead is totally
separated from wheel. Repeat procedure on other side
of tire. Tire is now ready for demounting. Lubricate the
tire bead.
Insert curved end of tire tools between tire and wheel,
approximately 10 inches apart. Pull one tool toward
center of wheel, then pull second tool in the same
manner. To free bead, leave one tool in position, take
out and reinsert the other tool, curved end between
bead and flange, a short distance from the spanned
area. Pry bead free of rim, repeating process until
entire bead is free from wheel.
Insert straight end of tire tool between beads and both
rim flanges, hooking stop on the tool over second
flange. Position inserted tool at 90
°
angle to tire
assembly at top of wheel and lubricate bead areas on
both sided of tool. Lean tire assembly toward tool and
rock or bounce to pry off the tire.
1
3
2
4
Recommendations
for demounting
tubeless tires
(continued)
1. When hand demounting tires from wheels, placing aluminum wheels on a clean
wooden floor, or rubber mat is recommended. Additional care should be used when
demounting Alcoa Dura-Bright
®
surface treated wheels since minor nicks and scratches
can not be polished out (see section 5-8, pages 37-38 for specific cautions, care and
maintenance procedures).
2. Always use a rubber, leather-faced or plastic mallet.
3. Keep tire tools smooth. Use them with care. Rim gouges or nicks may cause cracks.
4. If using a tire mounting/demounting machine on aluminum wheels, care should be
taken to prevent gouging the wheel.