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M3500B/M5500B Service Manual
Patient Connector
Removal
1. Disconnect the 3 connectors from the Patient Connector to the Power
PCA at the Power PCA - 2 are High Voltage spade connectors (note the
correct locations before removing) and 1 is a 9 pin connector with a latch.
See Figure 4-33.
2. Unscrew the large nut on the back of the connector.
3. Pull the connector and its wires and O-ring out of the case. Guide the 9
pin connector out through the nut and through the hole in the case by turn-
ing the connector sideways.
Replacement
1. Slide the wires of the new connector through the new O-ring that came
with the connector, then insert them through the hole in the case, and then
through the large nut. Use the existing nut.
2. Seat the O-ring on the connector.
3. Align the flat section on the connector with the flat portion of the case
hole.
4. Push the connector into the hole, seating the O-ring into the case.
5. Tighten large nut snugly but not excessively - the goal is to compress the
O-ring, not crush it hard against the case.
6. Replace the 3 connectors from the Patient Connector to the Power PCA.
Bottom Case Assemblies
4-65
4
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