Rev. 2.0
Maintenance Guide
2-5
2-1-3. IC Head (KE-3020VR)
1) Disconnect the Zθ-motor cables from the servo amplifier board. (Disconnect all connectors
from the 4th stage described in step 7) of section 2-1-1.)
2) Disconnect the T-sensor cable c from the head main board (CN27).
3) Disconnect the connector d (3 locations) of the LA connection cable from the FMLA sensor.
4) Disconnect the φ4 air tube. (See also section 2-1-2.)
5) Detach the release bar. (See also section 2-5.)
6) While keeping the IC head by hand so that it does not fall down, remove the M5×20 SEMS
cap bolts (6 pcs.) e, M3×6 SEMS cap bolt (1 pc.) f, and M4×8 SEMS cap bolt (1 pc.) g.
7) Raise the IC head so that it is not in contact with other components, and then detach it.
(Pay special attention so that the FMLA is not in contact with the release bar of the
LNC-head.)
8) Reassemble the components in the reverse order of disassembly.
∗ Apply Loctite 242 to the head mounting screws (6 pcs.) and tighten them with a
tightening torque of 7.0 N⋅m during assembly
9) After the head has been replaced, it is necessary to input the MS parameters again. For
details about input items, see section 2-8.
f
d (2 locations, front and rear)
d Connected to the front left portion.
g
M5×20 SEMS cap bolts (6 pcs.) e
θ-motor cables
Z-motor cables
φ4 air tube
To the head
main board
(CN27)
T-sensor cable c
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