Maintenance 50
The oil in the vacuum pump may be hot. Avoid contact with hot oil when removing the oil.
Follow the steps below to remove the oil from the pump:
1. Only applies to Boxer 52: Remove the vacuum pump from the housing.
a. Unscrew the mounting screws (1) of the rotating mounting plate (3) and place them in a
secure location.
b. Turn the rotating mounting plate outward until a drip pan can be placed under the oil drain
plug (2).
Figure 16: Mounting Plate Boxer 52
2. Place a drip pan under the oil drain plug.
3. Remove the oil drain plug.
The oil will drain from the pump.
4. Replace the oil drain plug.
Follow the steps below to add oil to the pump. You can follow these steps after all oil has been
removed, but also to refill oil.
5. Remove the oil drain plug.
6. Add oil until the oil level is between the minimum and maximum levels.
7. Replace the oil drain plug.
8. Only applies to Boxer 52: Replace the vacuum pump into the housing.
a. Turn the rotating mounting plate and vacuum pump back into the housing.
b. Screw in the mounting screws (1) of the rotating mounting plate (3) and tighten them.
7.5 Replacing the Oil Exhaust Filter
The oil exhaust filter prevents oil vapours from being emitted from the vacuum pump with the
exhaust air. If the filter becomes saturated, the maximum vacuum level can no longer be reached.
Replace the filter in case of vacuuming problems or as specified in Maintenance Schedule on page
48.
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