Omcan VP-NL-0050-LS, Инструкция по эксплуатации

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13
Maintenance
NOTES
• Check the condition of the tensioning springs at both ends of the seal beam; replace if necessary.
• These springs maintain tension on the sealing wire.
• Using the seal beam without the springs may cause sealing wires to break.
INSTALL THE SEALING WIRE AND TEFLON TAPE AS FOLLOWS:
1. Position the sealing wire across the beam and fasten it on one side with a small bolt.
2. Apply tension on the wire by pulling it with a pair of pliers.
3. Fasten the wire on the opposite end of the beam with the second bolt and cut the wire to length; the ends
of the sealing wire must be long enough to make electrical contact with the pins in the vacuum chamber.
4. Apply the Teflon tape smooth and tight over the seal beam; make sure that the beam is clean and free of
grease.
5. Re-install the beam in the vacuum chamber; check to make sure that the ends of the sealing wire make
contact with the steel pins.
ALUMINUM/STAINLESS STEEL SEAL BEAM
REMOVE THE SEALING AND CUTTING WIRES AS FOLLOWS:
1. Remove the old wires by pulling them loose from the seal beam contacts.
2. Loosen the clamp screws and remove the seal beam from the U-profile.
3. Remove the Teflon tape from the seal beam.
4. Remove the mounting plates on both ends of the seal beam by loosening the screws; this releases the
sealing wires and/or sealing and cutting wires.
5. Clean the seal beam thoroughly.
NOTES
• After removal of the wires, check the strips of fiber glass for damage; replace if necessary.
• Check the condition of the tensioning springs at both ends of the seal beam; replace if necessary.
• Using the seal beam without the springs may cause the sealing wires to break.
• Check contact plate for damage; replace if necessary.
INSTALL THE SEALING AND CUTTING WIRES AS FOLLOWS:
1. If necessary, install new strips of fiber glass on the seal beam.
2. Insert the new wires behind one of the mounting plates and tighten the screws; make sure that the end of
the wires line up with the bottom edge of the mounting plate.
3. Position the wires across the seal beam and loosely install the second mounting plate.
4. Carefully clamp the seal beam upside down in a bench vice.
5. Pull the wires as tightly as possible with a pair of pliers and secure the second mounting plate by tightening
the screws.
NOTE
1. The wires can be further tightened by slightly loosening the screws of one of the mounting plates.
2. Pull the wires one-by-one tighter with a pair of pliers.
3. Re-tighten the screws after the correct tension has been achieved.
4. Cut the end of the wires flush with the bottom edge of the mounting plate.