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4.3 Calibrating and Adjusting the Position of the Column
4.4 Checking and Adjusting the Bead Rollers
48 • • • • Maintenance and Calibration
Check the column position as follows:
Clamp a 14 or 15 inch rim without tire.
Position the mount/demount head against the outer edge of the rim.
Verify that the left-hand side of the mount/demount head has a clearance
of 1/8 inch from the rim edge while rotating the clamping device. The right
side of the mount/demount head must contact the edge of the rim.
Adjust the column position as follows:
Remove bolt securing rear panel to base. Set rear panel and bolt aside.
Loosen the four mounting bolts securing column to the base.
Clamp a 14 or 15 inch rim without tire.
Position the mount/demount head against the outer edge of the rim.
Turn the column so that the left side of the mount/demount head has a
clearance of 1/8 inch from the rim edge, while rotating the clamping
device. The right side of the mount/demount head must contact the edge
of the rim.
Tighten and torque four mounting bolts securing column to the base to 45
ft-lbs.
Re-install rear panel and secure to base with bolt previously removed.
Check to ensure bead rollers operate in line with each other as follows:
Position the bead roller assembly into its working position.
Clamp a 14 or 15 inch rim without tire, from the outside of the rim with
rubber jaws.
Set the rim diameter indicator to the diameter of the mounted rim.
Rotate the wheel so that the lower roller arm will not contact the tulip arm.
Lower the upper bead arm so the roller just passes the outboard flange of
the rim by 1/8 of an inch.
Return the upper arm to the resting position.
Raise the lower arm and note if there is any difference in distance when
the roller is passing the lower rim edge. The lower bead roller should
pass the inboard flange of the rim at same position as the upper roller
setting.
Adjust rollers as follows:
Loosen both nuts that lock the lower bead roller arm adjustment cable.
TC33 Series Tire Changer Operation Instructions
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