SPANNTOP [nova] – Assembly
Fig. 37
5. Tighten all cylindrical screws with a torque wrench
in a cross pattern [see section »Screw tightening
torque«].
For exact adjustment, if necessary loosen the
cylindrical screws a little, repeat the adjusting
and retighten the cylindrical screws in a cross
pattern.
6.3.3 Checking face run and concentricity
1. Place the magnetic base of the dial indicator on
the inside of the machine.
Fig. 38
2. Place the dial indicator for concentricity on the insi-
de edge of the spindle flange and check the con-
centricity [≤ 0,005 mm].
Fig. 39
3. Place the dial indicator for face run on the outer
edge of the mating surface, check the face run
[≤ 0,005 mm].
4. If face run and/or concentricity are larger than the
maximum permissible value:
Disassemble the flange.
Clean all mating surfaces of spindle and spindle
flange.
Re-assemble the flange.
Repeat the adjusting.
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