TriStar II 3020 Scheduled Maintenance Instructions Maintenance (Power Disconnected)
Jun 09 13
17. Plug the pump power cord into the power source.
18. Allow the pump to run a few hours (overnight if possible) to eliminate air and moisture
from the fresh oil and to produce efficient vacuum operations.
Changing the Vacuum Pump Exhaust Filter
The gases used by the TriStar are exhausted by the vacuum pump. An exhaust filter is installed
on the exhaust port of oil-filled pumps. The filter minimizes the release of oil vapor and should
be replaced when it becomes saturated with oil. Oil on the exhaust filter may indicate a leak in
the evacuation line.
1. Loosen the wing nut of the clamp at the vacuum pump exhaust port. Swing the clamp
away from the exhaust port and remove it.
2. Remove and discard the exhaust filter; do not remove the centering ring.
3. Make sure the centering ring is in place on the exhaust port.
4. Place the new filter on the centering ring.
5. Open the clamp and place it around the flange of the exhaust port and the flange of the
exhaust filter. Swing the clamp fastening screw toward the exhaust port until it fits into
the slot in the other half of the clamp. Tighten the wing nut securely by hand.
Clamp wing nut
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