ACS 553, ACS 563 Service Manual
1 689 975 295 2021-04-13 Robert Bosch GmbH
72
Plumbing and Mechanical
These instructions outline the steps to replace
and 4-3.
1. Disconnect unit from the power source.
2. Remove the front plastic cover.
3. Remove the four screws under the control
panel.
4. Tilt the control panel upwards the front of
the unit.
5. Remove the plastic line from the vacuum
pump.
6. Remove the two nuts from isolators threaded
studs that fastening the vacuum pump to the
frame of the unit.
7. Disconnect the vacuum PUMP connector
from the main harness.
Remove the cap from the vacuum pump
9. Remove the vacuum pump from the unit.
1. Remove the cap from the vacuum pump
2. Place the vacuum pump in the unit.
3. Slide the horizontal tab of the pump base
through the rectangular hole in the base so
the tab is located under the base frame and
rubber trim.
4. Cam the vacuum pump base downward,
aligning the isolator studs on the base with
the holes on the pump base.
5. Secure the vacuum pump to the isolators
with two nuts.
6. Connect the electrical connector (PUMP)
from the vacuum pump to the main harness.
7. Connect the plastic line.
Add 250 ml of oil into the vacuum pump.
9.
10. Tilt the control panel down and secure with
four screws.
11. Reinstall the front plastic cover.
12. Perform the steps to start the pump.
13. While the vacuum pump is running, check
14. Perform a function test and check for leaks.
Oil drain port
Sight glass
ss01940
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