Servicing
Pump Replacement
Thermo Electron Corporation Model 48i Instruction Manual 7-19
2. Disconnect the pump power cable from the AC PUMP connector on
the measurement interface board.
3. Remove both lines from the pump.
4. Loosen the four captive screws holding the pump bracket to the shock
mounts and remove the pump assembly and the shock mounts.
5. Invert the pump assembly, remove the two pump mounting screws
located on the bottom side of the pump bracket, and remove the
bracket from the pump.
6. Install the new pump by following the previous steps in reverse.
7. Perform a leak test as described in the “Preventive Maintenance”
chapter.
Figure 7-10. Replacing the Pump
Pump
Pump Bracket
Captive Screws (4)
Shock Mounts (4)
Floor Plate
Pump Mounting Screws (2)
(Bottom)
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