Siemens Maxum II Reference Manual page 16

Electronic Compartment Component Descriptions and Maintenance Procedures
2.1 Power Supplies
1. Ensure that power has been disconnected from the analyzer.
2. Open the electronics enclosure door.
3. Unplug SYSCON power cable from the bottom of the SYSCON cage.
4. Unplug the PECM 24V cable.
5. Loosen nuts (1 in photo A above)
6. Slide the power supply forward enough to disengage the power-supply tabs from enclosure
tabs as shown in photo below. (2 in photo A above)
7. Tilt the power supply clockwise to allow the tabs to clear the flanges. (3 in photo A above)
8. Drop the power supply off the nuts. (4 and 5 in photo B above)
9. Before completely removing the supply, unplug the safety ground wire from the spae lug
on the back of the enclosure. (See 7 in the photo C
above.)
10.Slide the power supply out of encloure. (6 in photo B above)
To PECM power connector
Figure 2-3
Reinstalling the power supply
The new supply is installed using the steps in reverse order. It may be necessary to slightly
bend the flange edges down to allow the supply bracket to engage the flanges. See C in the
photo
16
power connector
on bottom-left of cage
Power Supply Module Details
Removing the Power Supply Module above.
To safety
ground lug
on back wall
To SYSCON
Removing the Power Supply Module
Line-cord connector
Maxum II Reference Manual
Manual, 7/2017, 2000596-001
Line-voltage
selector switch
Fuse holder