Datex-Ohmeda Anesthesia Delivery Unit S/5 Technical Reference Manual page 72

Datex-Ohmeda ADU
Step 12: Replacing the batteries in the Central Electronics (Three years)
Spare parts: Batteries (4 pcs) 891389
Tools:
NOTE: All batteries must be replaced at the same time.
NOTE: Screws 63611 and 61721 are used to fasten top and side covers. Replace worn screws.
Preparations (removal of covers)
1. Disconnect mains, A-EV1, A-FGC1, Display and On/Standby cables from the Central
Electronics unit. See pictures below.
2. Unfasten the 4 Allen screws that hold the upper and lower part of the module frame, see picture
below. If an A-EO box is mounted it should be removed first. It is secured by the two lower
screws.
Figure 15
3. Pull out the A-ELEC from the frame.
4. Remove the top cover from the A-ELEC by removing the three screws (1) and unlocking the two
screws (2) as figure below.
Figure 16
5-14
Allen wrench 4mm
Cross-head Pozidriv screwdriver
Disconnecting the On/Standby switch cable and removing the four Allen screws
1
2
Removing top cover from the A-ELEC
Document No. 8502852