Maintenance (Power Disconnected) TriStar II 3020 Scheduled Maintenance Instructions
8 Jun 09
d. Replace the drain plug.
5. Remove the plug from the oil-fill port.
6. Slowly add oil to the port until the level is midway between the indicator lines in the oil-
level window.
7. Check the washer or O-ring used at the oil-fill port; replace if necessary.
8. Insert the oil-fill plug and turn clockwise to tighten.
Oil-fill port
Midway level
Do not allow oil to rise above the midway position. Doing so may cause oil to splash
into the oil filter and contaminate it.
If the drained fluid was dark in color, run the vacuum pump with the new fluid for five
minutes; then repeat steps 4 through 6. This procedures will help flush out all of the
contaminated fluid.
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