Huvema 19002, Manual

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23
PROCEDURE FOR SECTOR ARMS SETTING
In aforesaid case of cutting six flutes, it is natural that indexing should process
with the interval of 5 holes circle. The operator has to count 5 holes interval one
by one. Sector arms are designed to avoid such a trouble.
The procedure for sector arms setting would be as follows:
1. Mount the proper index plate on the worm shaft. The proper index plate
provides the chosen hole circle.
2. Loosen the index crank nut and set the index pin into a hole on the chosen
hole circle. Tighten the index crank nut and check to see that the pin enters
the hole easily.
3. Loosen the set screw on the sector arms. Place the harrow edge of the left
arm against the index pin.
4. Count the required holeds on the chosen hole circle. Do not include the hole
in which the index crank pin is engaged. Move the right sector arm slightly
beyond the last required hole and tighten the sector arm set screw.
5. After the first flute has been cut, return the table to the original starting
position. Withdraw the index pin and turn the crank the required complete
turns plus the required holes indicated by the right sector arm.
6. Turn the sector arm furthest from the pin clockwise until it is against the
index pin.
7. Repeat steps 5 and 6 as necessary.