Advanced Procedures; Advanced Bead Breaking Procedures; Bead Breaking "Ah" Wheels (E.g. Bmw M3, M5, Some Porsches, Range Rover, Lancia, Etc.); Bead Loosen "Ah" Wheels As Follows - Hunter TCX575 Operation Instructions Manual

3.1 Advanced Bead Breaking Procedures

Bead Breaking "AH" Wheels (e.g. BMW M3, M5, Some Porsches, Range
Rover, Lancia, etc.)

Bead Loosen "AH" Wheels as follows:

28  3. Advanced Procedures

3. Advanced Procedures

The capabilities of the TCX575 allows the user to utilize numerous advanced
procedures on a variety of rims and tires. For the operator to take advantage of these
features, this section explains in detail what additional steps can be taken.
"AH" (Asymmetrical Humps), "Bead Locking System" wheels may be identified by
looking on the back of a rim for "AH" in the rim size designation casting
(e.g. 8X17-AH).
"AH" wheels are designed so that the lowest point of the safety hump is located at the
valve stem or 180 degrees out. These two points are where it is easiest to loosen the
bead from the bead seat.
AREA BETWEEN THE BEAD
SEAT AND THE SAFETY
HUMP CHANGES TO
PREVENT TIRE SLIPPAGE ON
RIM
Swing the bead breaker arm out and away from the housing.
Position the wheel against the side of the tire changer between the bead breaker arm
and the housing.
Rotate the wheel so that the valve stem is in line with or 180 degrees from the blade.
Swing the bead breaker arm toward the tire and position the blade one to two inches
from the edge of the rim on the sidewall of the tire.
Operation Instructions for TCX575 Tire Changer