
Section 5 Operating Instructions
SG7 Manual
www.rottlermfg.com
5-12
Operation Tips before Machining Valve Seats
DO NOT depress Foot Pedal once centering is completed as this will change machine and cylinder Head
alignment.
Keep Spindle clean and dry. Never Used Oil.
Clean valve guide with a brush to remove foreign matter.
Required spindle rotation speed will vary, depending on seat hardness. As seat hardness increases, so
does the spindle speed will change. Some will require full speed
NOTE:
If valve guides are so badly worn that the proper centering will be impossible, it will be necessary
to replace that valve guide to achieve the a concentric valve seat.
See suggested machining speed chart below.
SEAT MACHINING SUGGESTED RPM CHART
VALVE SEAT
DIAMETER
SPINDLE
SPEED
INCH
METRIC
RPM
15/16"
24
175
1.000"
25.4MM
150
1.125"
29MM
150
1.250"
32MM
125
1.375"
35MM
100
1.500"
38MM
100
1.625"
41MM
100
1.750"
44.5MM
100
1.875"
47.5MM
75
2.000"
51MM
75
2.125"
54MM
75
2.250"
57MM
75
2.375"
60MM
50
2.500"
63.5MM
50
Valve Seat Machining Procedure
Seat Pocket and valve guide must be clean to ensure proper fit of the carbide pilot.
Select the correct Carbide pilot for the valve guide ID Diameter
At this point, the spindle and work head should be level according to the position of the cylinder head.
Fit the Rottler Tool Holder and pilot assembly into the spindle cone; make sure to align the locator pins
before you fit it into the spindle adapter and push it until you feel that is lock.
The spindle has been engineered to allow ultra fast tooling changes.
Make sure the that spindle Self 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, the locking nut automatically will be on the lock position
To remove turn the self-locking nut to the left position, hold the spindle adapter, it may drop on the
machine table. Damage will result
Содержание SG7
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Страница 45: ...Section 5 Operating Instructions SG7 Manual www rottlermfg com 5 15 Rottler Six and One Instructions...
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