Maintenance (Power Disconnected) TriStar II 3020 Scheduled Maintenance Instructions
12 Jun 09
14. Place the trap on the centering ring.
15. Open the clamp and place it around the flange of the intake port and the flange of the trap.
Swing the clamp fastening screw toward the intake port until it fits into the slot in the
other half of the clamp. Tighten the wing nut securely by hand.
16. Reconnect the hose from the analyzer to the oil vapor trap.
a. Inspect the centering ring before placing it on the trap body. If it appears flattened,
replace it with a new one. A flattened centering ring can cause vacuum leaks.
Use this type of centering ring for the trap body.
b. Place the clamp around the flange of the vacuum pump hose and vapor trap.
c. Swing the clamp fastening screw around until it fits into the slot on the other half of
the clamp. Tighten the wing nut securely by hand.
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