INSTALLATIONMOTOMAN 4-19 MH–Series Positioner Manual with MotoMount9. Tighten the tailstock bearing gland nut to the tailstock adapter shaft per thebearing manufacture’s literature.10. Remove the hoisting straps.4.4.7 Tooling Fixture Installation (regular)1. Jog the headstock until MotoMount is horizontal. The tooling mountingholes and locating pin must be pointing up.WARNING!Make certain servo power is OFF for the remainder of theinstallation, or serious operator injury and/or equipment damagemay result.2. Use a suitable lifting device to position the tooling above the headstockassembly (see Figure 4-21).3. Slowly lower one side of the tooling fixture onto the headstock using thelocating pin.4. Install the M12 tool mounting bolts and washers onto the headstock (customer-supplied, grade 8.8 bolts), and torque the bolts to 76 N • m (56 lbf-ft).4.4.8 Final Alignment CheckThe MotoMount system helps reduce the load on bearings due to tooling fixturemisalignment with the headstock and tailstock. However, optimum performance isachieved when the alignment is as close as possible. Horizontal and verticalmisalignment is possible. Both the horizontal and vertical alignment proceduresrequire the measurement of the same gap on the MotoMount drive components. Atooling fixture must be installed to align the system.Horizontal AlignmentCheck the horizontal alignment by measuring the gap (see Figure 4-23) betweenthe mounting fixture and mounting block. The measurement of this gap must notchange more than 1 mm (.039 in.) after the headstock is rotated 180 degrees. Tocheck MotoMount’s horizontal alignment, proceed as follows:1. Jog the positioner until MotoMount is horizontal.NOTE: The alignment procedure may be easier if the weld ground cable is removed.2. Using calipers, measure the alignment gap.NOTE: It is important to measure the alignment gap at the same location. This will ensure properalignment.3. Rotate the positioner 180 degrees.4. Measure the alignment gap at the second position. If the gaps differ by morethan 1 mm (.039 in.), the horizontal alignment must be adjusted. Use thefollowing procedure to adjust horizontal alignment:a) Calculate the average gap between the two positions, by adding bothmeasurements together and dividing by two.b) Loosen the bearing mounting bolts and move the tailstock bearing hous-ing towards the direction of the larger gap until the gap is at the averagevalue.
