Section 4: Maintenance
S540 Power Semiconductor Test System Administrative Guide
4-6
S540-924-01 Rev. D / January 2019
Moving instruments weighing more than 40 pounds
When installing or removing equipment heavier than 40 pounds, use a mechanical lifting device. If
there is an instrument mounted below the heavy instrument, it must be removed to provide clearance
for the lifting forks. You will also need to allow for additional space outside of the cabinet for the lifting
device.
Refer to the lifting device operating manual for proper usage.
Instruments in the S540 system that require a mechanical lifting device include:
4200A-SCS Parameter Analyzer with multiple options installed
707B Switch Matrix Mainframe with cards installed
HVM1212A High-Voltage Matrix
The Comp-41 system computer, if located near top of the system cabinet
General replacement procedure
Severe personal injury or death due to electric shock or electrocution may result if power is
not removed before working inside the cabinet. Always disconnect the cabinet line cords
from the AC line power receptacles before opening the system cabinet. Also, never turn on
the system until all connections and safety grounds are installed.
1.
Remove power and place a lock and tag on the main circuit breaker of the power distribution unit
(on page 2-21)).
2.
Disconnect and tag cabling to the unit requiring removal. Do not change cable routing or
securement.
3.
Properly supporting the unit, remove it from the system cabinet.
The HVM1212A high-voltage matrix is very heavy and requires a mechanical lifting device to
safely lift it.
