Huntleigh Flowtron AC550, Service Manual

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5.11 Replacing the Pressure Control Assembly
1. Carefully peel the face label from the front panel and place to one side.
2. Unscrew and remove the four countersunk securing bolts and nuts.
3. Disconnect all tubing attached to the assembly.
4. Replacement is reverse of the above procedure.
5. Ensure that the pressure control spring and rivet are in position before
securing pressure control to front panel.
6. Reconnect tubing to the pressure control, ensuring all tubes are pushed
fully onto their mounts.
7. Re-apply the existing label or apply a new label as appropriate.
5.12 Replacing the Connectors
Disconnect all tubing from the relevant connectors.
Remove the connector housing.
Replacement is reverse of the above procedure.
5.13 Replacing the Electrical Cord
1. Remove the power supply leads from the 3-way terminal block.
2. Remove the control PCB.
3. Unscrew the left hand side nylon pillar, attached to the motor gearbox
assembly.
4. Remove the earth wire.
5. Remove from “strain relief bush.”
Replacement is reverse of the above procedure.
247901 5-6 Issue 1
March 1998