RESHARPENING CUTTING HEADS
URSCHALLOY cutting heads may be
returned to the factory for resharpening, pro-
vided a certain amount of increased cutting
clearance is acceptable. With each grinding,
inside diameter is enlarged approximately
.010". Heads can be sharpened until amount
of oversize reaches unacceptable limit; gener-
ally .030" (.762mm). When Urschalloy cutting
heads are no longer usable, they may be
returned to the factory for rebate. Cutting
heads being returned for sharpening or rebate
should be clean and free from foreign materi-
al. See page 81 for ordering and returning
parts information.
FABRICATED cutting heads with open-
ings between the horizontal separators of
0.150" to 1.500" may be resharpened by filing.
Cutting heads with openings down to 0.100"
should be returned to the factory for resharp-
ening; openings below 0.100" cannot be
resharpened.
To resharpen fabricated cutting heads:
1. Remove cutting head from machine.
See page 44.
2. Use appropriate file. See chart. Use a
smooth, second cut or bastard square file
or a smooth or second cut mill (flat) file.
3. Place cutting head in a soft jaw vise and
file from outside to center. File in one
direction at a 45
°
angle to the land of the
cutting surface (Figure 67).
NOTE: Cutting head can be sharpened
until the land of the cutting edge is filed to
approximately 1/32" in width, then a new
cutting head is required.
4. Remove burrs on inside of cutting head
by honing each vertical land or running an
emery cloth counterclockwise inside cut-
ting head.
MAINTENANCE
Cutting Heads
65
File
Type of
Opening Between
Cutting Head
Horizontal Separators
4" Square
A
0.150"
B
0.150"
J
0.180 & 0.240"
K
0.150 — 0.390"
6" Square
A
0.270 & 0.510"
J
0.300 — 0.510"
Special Column
0.390 & 0.300"
(14 & 10 column)
4" Flat
K
0.510"
Special Column
0.510"
(14 & 10 column)
6" Flat
J
0.750 — 1.500"
K
0.750 & 1.500"
Special Column
0.750 — 1.500"
(14, 10 & 7 column)
Figure 67 — Sharpening fabricated cutting heads (1)
File, (2) Land, (3) Deburr counterclockwise
1/32" MIN.
45°
2
3
1
Summary of Contents for COMITROL 1700
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Page 19: ...17 GENERAL INFORMATION...
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Page 25: ...23 INSTALLATION...
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Page 49: ...47 PARTS...
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Page 52: ...PARTS Tools 50 2 1 3 4 5...
Page 54: ...PARTS Slant Machine 52 1 17 14 21 22 10 6 4 7 5 15 8 9 20 19 18 16 3 2 12 13 11...
Page 72: ...PARTS Optional Parts 70 7 8 5 6 7 8 3 2 4 10 1 9...
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Page 83: ...SAFETY 7...
Page 89: ...15 OPERATION...
Page 108: ...35 MAINTENANCE...
Page 152: ...79 PARTS...
Page 154: ...82 PARTS Tools 1 2 3 4 12 5 6 7 8 9 10 11 18 13 14 19 20 21 23 22 24 25 27 26 28 16 17 15...
Page 156: ...PARTS Frame Assembly 84 1 3 5 6 7 8 12 15 9 10 14 13 4 2 11...
Page 182: ...PARTS Spindle Assembly 110 1 2 3 23 4 5 6 22 7 8 10 11 12 13 14 15 16 17 18 19 21 20 9...
Page 211: ...PARTS Motor and Drive Parts 140 1 2 3 4 5 6 7 8 9 10 11...
Page 215: ...PARTS Motor Brake 25 lbs ft 144 25 LBS FT 15 H P MOTORS 1 3 4 6 2 5 8 9 10 11 10 7...
Page 221: ...PARTS Optional Parts 150 1 17 16 20 2 4 3 6 7 8 5 10 11 13 15 14 12 12 13 13 9 18 21 19 22...
Page 223: ...PARTS Optional Parts 152 1 2 3 26 4 5 6 25 7 8 10 11 12 13 14 15 16 17 21 24 22 18 19 20 9 23...
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