Models 947, 948 and 960 Leak Detectors Operations and Service Manual
B-18
B.4.1.1.3 Re-installing the Wet System Rough Pump
WARNING
To avoid injury, use proper lifting techniques when moving
pumps. Your system may have pumps that require two people
to move them safely.
To perform this procedure:
1. Ensure the area is clean for the new pump.
NOTE
You may have to loosen the radiator clamps on the tygon tubing
and slide it up the line to remove the pump.
2. Place the new pump into the cabinet aligning the holes in the pump over the mounting
holes in the floor of the cabinet.
3. Working from beneath the cabinet, place the bolts into the mounting holes, replace the
nuts, but do not tighten them fully.
You may have to shift the pump a bit when making the connections.
4. Place the centering ring and O-ring onto the pump outlet flange on the left side of the
pump.
5. Place the manifold against the centering ring.
6. If necessary, slide the Tygon tubing down over the connection and tighten the radiator
clamps (Figure B-12).
Figure B-12
Rough Pump Manifold and Exhaust Connections
Exhaust Connection
Manifold Connection
Tygon Tubing
Radiator Clamp Screws
NW25 Clamp
NW16 Clamp
