Selecting Machining Mode
11-3
SG9A Manual
www.rottlermfg.com
Make sure the Head Clearance Height is sufficient for the Tool holder to clear the Cylinder
Head and the fixture when moving the work Head across.
The Vertical stops have now been set. You are finished with the Vertical Stops screen, these steps has to be done
on every new cylinder head and it will be save on the Head Selection mode.
Is importing to save changes every time you getting out of each mode if you are sure the those changes are
correct.
NOTE: Next time you get the same cylinder head all the setting has been storage and all you have to do is bring
the tool holder aver the pilot with the Handwheel with work head floating clamp the work head about .060” before
touch the seat and using the hand wheel and the spindle on make contact with the valve seat lightly and press zero
to set you starting point, now you ready to start machining the seats
Start Auto Cycle:
1. After you select the right cylinder head, mode and you have all the tooling
set to the right specifications for the application that you are working on it.
Float the work head over the seat that you will be machining and make sure
you have enough clarence to go across the pilot.
2. By pressing and holding the MOVE (green button) Lower Cutterhead over
pilot bring the tool holder into the pilot shank, the work head will automatically
be on flouting mode, is very importing to balance the work head with you left
Hand so you won’t crash the Tool holder
into the pilot. See Picture No.1
3. Press the MOVE Button Start Cutting Height, the spindle will go dawn and
float for few seconds to the setting that you inner on the display box. On this
sample, the spindle will go down 0.020” before it touching the seat.
4. Press the AUTO Button Finish Cutting Depth, on the simple you will see on
the display box -0.0150”. The spindle will start at the programmed RPM. The
vertical feed will start at the programmed rate in a downward direction until the correct depth is reached.
If the seat is not clean completely you can press the MOVE button on the Head Clearance Height and the spindle
will retract vertically to the programmed height, you can visually inspect the finish. If
you need to cut more to seat, press the MOVE button on the Start Cutting Height
Without Spindle Float. You can add more to the Finish Cutting Depth or by adding
additional Depth by pressing .002” or .005” button.
5. The cutter will then continue the circular interpolation dwelling to the programmed RPM and then it retracts the
cutting tool from the seat. When the cutter is back off the valve seat and all motion will stop, and you satisfy with
the finish on the seat. Press the MOVE button on the Head Clearance Height and move the work head to the next
seat.
6. Remove the Pilot from the Valve Guide and insert the pilot in to the next Valve Guide; once that you have the
spindle on the Head Clearance Height flout the work head to the next seat and you have the pilot in the guide press
the MOVE button on the Rapid to Pilot Height and then rapid from Step 2.
The Setting on the Dwell Screen is very import,
depending on the seat material you can judge the
cutting RPM and the Dwell Speed, in average seat
you can start with 200 RPM for cutting and 300 to
400 RPM for Dwell mode
