Figure 2
Mechanical lifting device (Presto model shown)
General replacement procedure
4. Remove power and lockout/tagout system (see Lockout/tagout in Section A of this document).
5. Disconnect and tag cabling to the unit requiring removal. Make sure not to change cable routing or
securement.
6. Properly supporting unit, remove it from the system cabinet.
Removing system power
Remove system power before performing maintenance/replacement of components:
1. Shut down software. Follow precautions for removing hazardous voltage from the probe or other types of
test fixture before handling.
2. Shut down the computer.
3. Place the system cabinet power switch to the OFF position.
4. If cabinet has doors, open them.
5. Place the main circuit breaker on the power distribution unit(s) in the OFF position.
6. Disconnect the source power to the S500 system (1 or 2 power cords dependant on system configuration).
7. Place the locks and tags on the source power connection, main circuit breaker, power switch, and EMO
button.
8. Wait 30 minutes before accessing any high voltage units.
Calibration and Repair
Refer to individual instrument manuals for details.
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