Siemens SINUMERIK 840DE

03.06
4.2 Mounting
4-43
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
1. Slide the back of the fan box into the locking mechanism on the NCU box.

Fan box
2. Push the front section into the guide until the spring locks.

Guide
For replacing the fan box
1. Apply pressure to the locking spring on the front section of the fan box and
2. Slide the fan box downward.
Mounting
the fan box
Replacement
4 Descri
p
tion of the NCU