Bego 39701001, Manual

Page: 78 / 94

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Ejecting and cleaning the seals
Dirty O-rings on the openings to the casting
chamber (e.g. residual investment material) may
lead to leaks that would create some noise.
Moreover, the vacuum and pressure values may
change, which could lead to faulty casting results.
O-rings can be ejected with compressed air.
1. Open the mould door.
2. Go to Settings > O-rings > Eject O-rings (1).
The O-ring is released using compressed air.
3. Remove the seal.
4. Clean the O-ring, grooves and sealing sur-
faces with a cloth and isopropyl alcohol.
5. Slightly grease the O-rings with seal grease
(REF 16232).
6. Remove surplus grease with a dry cloth!
7. Insert the seal again
8. Repeat the process with the crucible door.
9. Check the seals, see page 75.
(1)
WARNINGS
Burn hazard from hot parts!
Carry out maintenance and cleaning
work before casting or after the device
has cooled down.
ATTENTION
The grease is difficult to remove
from skin and clothing.
Wear the protective clothing and
gloves prescribed for use in dental
laboratories!
NOTE
• Do not overstretch the seal when cleaning and
inserting it!
• Do not interchange the seals, they have differ-
ent sizes! A poorly fitted seal will cause leaks.