Replacement Vacuum Pump - Bosch ACS 753 Repair Instructions

ACS 753, ACS 763, ACS 863 Service Manual

Replacement Vacuum Pump

WARNING: Disconnect the unit from
the power source before beginning
service work. Incorrect use or
connections can cause electrical
shock.
WARNING: Wear safety goggles
when working with refrigerants.
Refrigerants can cause eye injury.
WARNING: Use extreme caution
w h e n d i s c o n n e c t i n g h o s e s .
Pressurized refrigerant may be
present in hoses. Point hoses away
from you and anyone nearby.
Instructions
These instructions outline the steps to replace
the existing vacuum pump. See Figures 4-2
and 4-3.
Removing Vacuum Pump
1. Disconnect the unit from the power source.
2. Open the service rear door.
3. Remove the screw holding the control panel
to its support and rotate the control panel
toward the front of the unit.
Robert Bosch GmbH
ss01940
Oil fill port
Figure 4-2. Vacuum Pump
Plumbing and Mechanical
4. Remove the two plastic lines from the
vacuum pump.
5. Remove the two bolts fastening the vacuum
pump to the pump shelf.
6. Disconnect the vacuum PUMP connector
from the main harness.
7. Remove the vacuum pump from the unit.
Installing Replacement Vacuum Pump
1. Place the vacuum pump into the unit.
2. Secure the vacuum pump to the unit with
two screws.
3. Connect the electrical connector (PUMP)
from the vacuum pump to the main harness.
4. Connect the two plastic lines.
5. Remove the cap from the vacuum pump
oil fill port.
6. Add 140 g (5 oz) of oil into the vacuum
pump.
7. Place the cap on the fill port.
8. Close the service rear door.
9. Perform the steps to start the pump.
10. While the vacuum pump is running, check
the correct fill level through the sight glass.
11. Perform a function test and check for leaks.
Oil drain
port
77
Sight
glass
SP00D00609 2018-03-26