A SERVICE OF

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8 - 4
8 Maintenance
MITSUBISHI CNC
[4] Remove the fixing screws (hexagon socket screws at four locations) for the cooling fan unit.
(Note 1) Some spindle motors have the fixing screws (hexagon socket screws) for the cooling fan unit at two
locations.
[5] Slowly unplug the lead wire of the cooling fan from the section where the lead wire for the cooling fan is led out. At
this time, slowly unplug the protection tube which protects the lead wire for the cooling fan together. Slowly unplug
the protection tube by pushing it out from inside the terminal box or pulling it from outside the terminal box not to
overload the cooling fan side.
(Note 1) Take special care not to damage the lead wire for the cooling fan.
A
A
Spindle motor
Cooling fan
unit
Hexagon socket screws
at four locations
View A-A
Hexagon socket screws
B
B
Spindle motor
Cooling fan unit
Protection tube
View B-B
Section where the cooling fan
lead wires are led out
Inside the terminal box