Coats 80C, Operating Instructions Manual

8 • 

Important: Always read and follow operating instructions.

CAUTION

At times during the mounting and 
demounting procedure, the bead lifting 
tool may encounter resistance and can be 
thrown. Keep one hand firmly on the tool 
to avoid possible tool disconnect. Use the 
reversing feature to back out of jam-ups. A 
thrown tool can cause injury.

14.

 Insert the smooth curved end of the bead lifting 

tool over the forward end of the demount tool and 

below the top bead of the tire (figures 16 & 17). Lift 

the bead up and over the knob on the demount tool 

(figure 16 & 17). Also, note the valve stem position to 

the demount tool. Use the Robo-Arm

®

 helper device 

to push down on the tire opposite the demount tool 

to allow the bead to utilize the drop center area of the 

rim, this position reduces stresses in the bead and 

allows an easier bead lift.

Figure 16 -  Insert Bead Lifting Tool

15.

 Push the bead lifting tool down towards the 

wheel to lift the tire bead up and over the knob portion 

of the demount tool. Hold the tool and bead in this 

position (figure 17).

Figure 17 - Lift Bead Over Demount Tool

16.

 Depress the rotation pedal to rotate the wheel. 

The Duckhead mount/demount tool will guide the tire 

bead up and over the edge of the wheel. Continue 

rotation until the upper bead is demounted.

NOTE: 

Push down on the tire across from the 

demount tool during pedestal rotation to utilize 

the drop center area of the wheel. This reduces 

the tensional force on the top or first bead during 

demount (figure 18).

Figure 18 - Demounting Lower Bead

17.

 Lift and hold the tire at an angle so that the 

lower bead is resting in the drop center directly 

across from the demount tool, and is loose below the 

demount tool (figure 18). Insert the smooth curved 

end of the bead lifting tool down over the forward end 

of the mount/demount tool and below the lower bead. 

Lift the bead up and over the knob on the demount 

tool (figure 19).

Figure 19 - Guide Lower Bead Over Knob On Demount Tool

18.

 Depress the rotation pedal to rotate the wheel. 

The demount tool will guide the bead up and over the 

edge of the wheel. Continue rotation until lower bead 

is demounted.

Valve Stem

Push down