Rottler SG7, Operation And Maintenance Manual, Page: 40 / 102

Section 5 Operating Instructions SG7 Manual
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Machining valve seats and Counter Boring
Aligning Spindle to Work
Most machining operations require the spindle to be directly centered over the work to be performed. This
is usually accomplished by air floating the work head above the area to be machined then manually
lowering the spindle to engage the tooling that’s going to be used. Most of the tooling used with the SG7
has been engineered with this centering feature incorporated into the design
If the pedal is released too quickly, the floating head may bounce. True centering may
not be achieved, if this happens. Slowly releasing the air float pedal gives the best
results. Removing your hands completely from the work head during the final seconds of centering will
insure that you do not negatively influence centering accuracy.
Changing the Spindle Adapters
Once that you have the tool holder setup, fit the ball head tool holder into the spring free spindle adapter.
The SG7 spindle has been engineered to allow ultra-fast tooling changes.
Make sure the spindle spring free locking nut is in the off lock position, line up the two ears of the spindle
adapter and insert into the spindle ISO 30 taper. Lock the nut buy turning counterclockwise, to remove
hold the spindle adapter and turn nut clockwise.
Installing the Spherical self Aligning Toolholder
Once the spring free adapter is in the spindle, fit the Rottler Spherical Self aligning Tool holder assembly
into the spindle adapter.
Fine Feed Engagement
To engage the fine feed mechanism it is necessary to push inward on the spindle feed handwheel while
rotating the fine feed handwheel until engagement is achieved. To disengage the fine feed simply pull
outward on the spindle feed handwheel