Rottler SG9A, Руководство по эксплуатации и обслуживанию

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Tapping and Seat Angle Cutting 9-4 SG9A Manual
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While rotating the assembly tool holder/carbide tip holder, the carbide bit’s cutting edge should just touch the
micrometer spindle.
Once in contact with the micrometer spindle, the carbide tip should not be moved at all. If this is not observed,
the cutting edge may be damaged and the resulting surface quality, when machining, will be deteriorated.
Tapping Operations:
Place the Jacobs chuck or Collet Holder in the spindle as explained previously. Install tap in the chuck, and
tighten.
Center over the hole to be tapped
Set spindle RPM at approximately 50 RPM and Feed Rate at .00010
Choose a spindle speed sufficient for the tap (approximately 50 RPM), and allow the tap to feed the spindle as it
threads the hole.
When the proper depth is achieved, press to reverse the spindle rotation and left spindle return the tap off the
hole.
Three Angle Seat Cutting:
Place the ball drive adapter in the spindle.
Align spindle to valve guide.
Place a valve in the setting fixture. Position the pointer on the
valve where you wish to place the top of the seat.
Remove the valve; replace it with the correct pilot.
Select the proper diameter tool holder. Place the carbide insert in
tool holder. Slide tool holder onto ball head.
Place ball head over the pilot in setting fixture. Use radial
adjusting screw to set diameter of cutter to correspond to
position of pointer on setting fixture.
Tighten hex socket screws on bottom of ball head. See figure 9
Remove ball head assembly from setting fixture. Place fixed
carbide pilot in cylinder head.
Center the spherical ball head toolholder over the pilot shank.
Required spindle rotation speed will vary, depending on seat
hardness. As seat hardness increases, so does the required
spindle speed. Some will require full speed.
Special care should be taken in centering the floating head
above the valve guide, to achieve a concentric seat.
Cut seat only enough to clean up surface.
Too much cutting will sink the valve too far in the head. Many
operators prefer to use the spindle fine feed when machining
seats as extreme control of spindle down feed can be
accomplished.