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Maintenance 54
7.5.1 Pump 40-300 m
3
Figure 17: Replacing the Oil Exhaust Filter (Pump 40-300 m
3
)
Follow the steps below to remove the old oil exhaust filter:
1. Remove the filter cover (4) of the vacuum pump (1) and put it aside.
2. Remove the leaf spring (3) and put it aside.
3. Remove the old filter (2).
Follow the steps below to install a new oil exhaust filter:
4. Insert the new filter into the vacuum pump.
Make sure the O-ring is properly placed on the filter inlet.
5. Mount the leaf spring placed aside.
6. Mount the filter cover placed aside.
7.6 Replacing the Sealing Wire
Depending on the specifications of your machine, you can have one of the following (combinations
of) sealing wires:
• Wide seal: one wide sealing wire
• Cut-off seal: one sealing wire and one cutting wire
• Double seal: two sealing wires
• Bi-active seal: one seal bar with a wide sealing wire on both sides
The process of replacing the sealing wires is the same for all types.
Make sure, for bi-active seal systems, that the upper and lower sealing wires are aligned
precisely during the sealing.