Rittal BC 1007 HS, Manual

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3.5.4 Chip Trap/Dropout
The Chip Dropout is located under the Pressure Plate
Manifold and vacuum hose connection. This chip
dropout cup will collect all larger milling slugs and large
drill filings. When the chip trap becomes full, the large
debris is then get vacuumed into the vacuum hose and
can cause blockages.
Emptying the Chip Dropout requires the operator to pull
down while twisting the trap, discard the debris and re-
insert the cup into the manifold.
3.5.5 Vacuum Seal
The Vacuum Seal is a foam rubber seal that increases
the air flow around the milling tool and helps vacuum
the metal shavings away from the cut.
Daily cleaning of the vacuum seal is required to remove
metal shavings and cutting oil. Do not use chemicals when cleaning, wipe with a soft cloth.
Replacement should occur when the seal deteriorates, see Section 3.3 for replacement
procedures.