Siemens SIMATIC LS120 Instructions De Montage page 20

Removing the power supply unit
1. Unscrew two retaining
screws from power
supply unit
Removing drives
1. Detach power supply cable from
basic module
4. Remove drive holder with drives
8
2. Detach power supply cable
3. Slide power supply unit to the right
4. Remove power supply unit from the PG 740 PII
2. Detach ribbon cable from hard disk
3. Release floppy drive lead by
unlatching socket with screwdriver
LS120 Installation Instructions
C79000-K7076-C010-01