
Section 5 Operating Instructions
SG7 Manual
www.rottlermfg.com
5-8
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 tool holder 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.
The capacity of the Rottler SG7 associated with a complete
tooling range allow working on seats of diameters between
14 and 120 millimeters (0.55’’- 4.7’’).
Three tooling ranges are possible:
1. For seats diameters between 14 and 25 mm ( 0.55’’- 1’’): tool holder BH600R1 and Mini tip holder
TH1999 for seat range .551” - .984” (14mm-25mm) with pilots with 6.00mm shank diameter.
2. For seats diameters between 18 and 60 mm ( 0.71’’- 2.4’’): tool holder BH375R1, or UPT5100
(SG10A,9M only) and tip holder TH2000 for seat range .710” - 1.180” (18mm-30mm) or TH2001 for
seat range 1.100” - 1.570” (28mm-42mm) or TH2002 for seat range 1.570” - 2.360” (40mm-60mm),
with 9,52 mm ( 3/8 ’’) pilots of shank diameter
3. For seats diameters between 40 and 80 mm (1,570”- 3.150”): tool holder BH375WR1 or UPT5300
(SG10A,9M only) and tip holder TH2003 for seat range . 1.570’’ - 2.360’’ (40mm - 60mm) or TH2004
for seat range 2.280” - 3.150” (58mm - 80mm), with pilots with 9,52 mm ( 3/8 ’’) shank diameter.
IMPORTANT: When the form tips, the square tips or the triangle inserts are fitted, check that their
reference faces are perfectly clean.
Summary of Contents for SG7
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Page 8: ...Section 1 Introduction SG7 Manual www rottlermfg com 1 4...
Page 14: ...Section 2 Installation SG7 Manual www rottlermfg com 2 5...
Page 20: ...Section 2 Installation SG7 Manual www rottlermfg com 2 11...
Page 27: ...Section 4 Control Definitions SG7 Manual www rottlermfg com 4 1 CONTROL DEFINITIONS...
Page 28: ...Section 4 Control Definitions SG7 Manual www rottlermfg com 4 2...
Page 46: ...Section 5 Operating Instructions SG7 Manual www rottlermfg com 5 16...
Page 47: ...Section 5 Operating Instructions SG7 Manual www rottlermfg com 5 17...
Page 50: ...Section 5 Operating Instructions SG7 Manual www rottlermfg com 5 20...
Page 58: ...Section 6 Maintenance SG7 Manual www rottlermfg com 6 7...
Page 66: ...Section 7 Troubleshooting SG7 Manual www rottlermfg com 7 7...
Page 73: ...Section 8 Machine Parts SG7 Manual www rottlermfg com 8 6 Base Assembly...
Page 76: ...Section 8 Machine Parts SG7 Manual www rottlermfg com 8 9 Spindle Assembly...
Page 79: ...Section 8 Machine Parts SG7 Manual www rottlermfg com 8 12 Transmission Assembly...
Page 81: ...Section 8 Machine Parts SG7 Manual www rottlermfg com 8 14 Head Support Assembly...
Page 85: ...Section 8 Machine Parts SG7 Manual www rottlermfg com 8 18 SG7 Electrical Components...
Page 86: ...Section 8 Machine Parts SG7 Manual www rottlermfg com 8 19 SG7 Pneumatic Drawing...
Page 88: ...Section 9 Options SG7 Manual www rottlermfg com 9 2...
Page 90: ...Section 10 Material Data Safety Sheets SG7 Manual www rottlermfg com 10 2...
Page 91: ...Section 10 Material Data Safety Sheets SG7 Manual www rottlermfg com 10 3...
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