COATS 9024E Tire Changer - Manual (Page 19)

5. Loosen bottom bead, starting with valve stem
positioned at the 2 o’clock position above the bead
loosener shoe (figure 28).
Figure 28 - Loosen Bottom Bead
6. Liberally lubricate the bottom bead of the tire (fig-
ure 29).
Figure 29 - Lubricate Bottom Bead
7. After loosening and lubricating the lower bead,
rotate the tabletop until the clamps are in the 12, 3, 6,
and 9 o'clock positions (Figure 30).
Figure 30 - Rotate Tabletop to 12 O’clock
Avoid back injury, seek assistance when lift-
ing heavy tire/rim assemblies onto the tire
changer.
8. Clamp wheel from the outside. Position rim edge
into clamp at 12 o'clock position. Lower the wheel and
depress the clamp control pedal. Slowly move the
clamps inward until they securely contact the outside
edge of the rim (Figure 31).
Figure 31A - Clamp Wheel (Tire Removed for Clarity)
Figure 31B - Outside Clamped with Tire Removed
Tip: This is usually accomplished by crouching down in
front of the tire changer, holding the wheel with the
right hand, and operating the clamp control pedal with
the left hand. This allows the operator to watch the
clamps as they move inward to ensure proper, damage-
free clamping.
9. After clamping the tire and wheel, position the
duckhead ® as explained in the previous section.
10. Lubricate upper bead liberally. Use the R.H.
tapered roller to help push the tire bead down so bead
area is easier to reach for lubrication (figure 32).
Figure 32 - Lubricate Upper Bead
CAUTION
Important: Always read and follow the operating instructions. • 15
Valve Stem