Servicing
Pump Replacement
Thermo Electron Corporation Model 42i Low Source Instruction Manual 7-11
5. Disconnect the three connectors that pass through the center of the
partition panel.
6. Remove two screws from the left side of the case (viewed from front).
7. Remove one screw from the bottom front of the case.
8. Remove one screw from the top front of the partition panel.
9. While holding the case securely, loosen the captive screw at the rear of
the measurement bench, and pull the measurement bench from the rear
of the case.
10. Remove the screw at the top rear of the partition panel securing the top
of partition panel to the measurement bench, and lower the panel being
careful not to put excessive tension on the cables.
11. Replace the measurement bench by following previous steps in reverse.
Pump Replacement Use the following procedure to replace the pump (see Figure 7-6).To
rebuild the pump, see “Pump Rebuilding” in the “Preventive Maintenance”
chapter.
Equipment Required:
110V pump or 220V pump
Screwdriver
1. Turn instrument OFF, unplug the power cord, and remove the cover.
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap must
be worn while handling any internal component.
To Next Page
Loading...
