Question

to dismount the inner bead from the wheel, what are the proper valve stem and machine arm locations?
a) the valve stem should be at the 6 oclock position and the machine arm at the 11:30 position.
b) the valve stem should be at the 12 oclock position and the machine arm at the 6 oclock position.
c) the valve stem should be at the 11:30 position and the machine arm at the 12 oclock position.
d) the valve stem should be at the 12 oclock position and the machine arm at the 11:30 position.

Explanation:

When dismounting the inner bead from the wheel, the valve stem should be positioned at 12 o'clock and the machine arm at 11:30. This is a standard procedure in tire - wheel dismounting operations.

Answer:

D. The valve stem should be at the 12 o'clock position and the machine arm at the 11:30 position.