9.2.2
Screws with preCOTE coating
The motor can partly be fitted with screws with preCOTE coating. To ensure screw locking, use
new screws with preCOTE coating during assembly/repair. As an alternative, use normal
screws with a threadlocker such as Loctite.
9.2.3
External fan
9.2.3.1
External fan unit
The external fan unit is mounted on the NDE radially (at the top or side) or axially. In case of
replacement, remove the complete external fan unit.
Deinstalling
WARNING
Rotating or live parts
Live electrical parts at the external fan motor are dangerous. Contact with them can cause
death, serious injury or material damage.
1. Before you start working on the fan, disconnect the fan motor from the supply system.
2. Make sure that the device cannot be switched back on.
3. Wait until the external fan has stopped before you continue.
1. Secure the external fan unit against falling before you start working.
2. Loosen the fixing screws that secure the external fan unit to the bearing shield.
3. Observe existing retaining components and retain them for the reassembly.
Assembly
To mount the external fan unit, perform the above instructions in reverse order.
1. Position the external fan unit and tighten the fixing screws.
2. Ensure that the retaining components are undamaged and correctly installed.
9.2.3.2
Replacing the external fan
If the external fan is defective, contact the Service Center (Page 171).
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1MQ1
Operating Instructions 01/2019
135
Summary of Contents for SIMOTICS FD 1MQ1
Page 2: ...28 01 2019 14 14 V11 01 ...
Page 144: ...Maintenance 9 2 Corrective Maintenance SIMOTICS FD 1MQ1 144 Operating Instructions 01 2019 ...
Page 170: ...Disposal 11 5 Disposal of components SIMOTICS FD 1MQ1 170 Operating Instructions 01 2019 ...
Page 172: ...Service and Support SIMOTICS FD 1MQ1 172 Operating Instructions 01 2019 ...
Page 176: ...Quality documents SIMOTICS FD 1MQ1 176 Operating Instructions 01 2019 ...
Page 181: ......