Replacing The Rough Pump; Wet Systems - Agilent Technologies 947 Betriebs- Und Servicehandbuch

Models 947, 948 and 960 Leak Detectors Operations and Service Manual
B.4 Replacing the Rough Pump
B.4.1 Wet Systems
This discussion includes procedures for replacing rough pumps in wet systems ("Removing
the Wet System Rough Pump" on page B-16) and rough pumps in dry systems ("Removing
the Dry System Rough Pump" on page B-20).
In both cases, the rough pump is mounted on the bottom of the right side of the main
cabinet. Figure B-10 shows the front view of wet and dry pump configurations.
Before replacing the rough pump:
Refer to the appropriate pump operations manual.
Ensure that the replacement pump is either the same one as you are replacing, or a
pump that can be used in its place.
Forepump
Wet Pump Configuration
Figure B-10 Location of Forepump and Rough Pump — Wet and Dry Configurations
WARNING
Rough Pump
To avoid injury, use proper lifting techniques when
moving pumps. Your system may have pumps that
require two people to move them safely.
Forepump Rough Pump
Dry Pump Configuration
B-15