Replacement Fan Assembly - Bosch ACS 753 Repair Instructions

Electrical

Replacement Fan Assembly

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.
Replacement Instructions
Follow these steps to replace the fan assembly.
Refer to Figure 3-8.
1. Clear service hose and remove them.
2. Disconnect Voltage.
3. Remove front panel and open service rear
door.
4. Remove oil return and discharge compressor
hose.
5. Remove 2 screws outside the frame to free
the fan.
6. Note the orientation of the fan blades.
7. Disconnect the FAN connectors and fan
ground connector from the fan assembly.
8. Remove the fan assembly.
9. Fasten the fan ground connector to the
ground screw on the replacement fan body.
10. With the fan blades properly oriented as
noted in step 6, install the replacement fan
assembly by securing it to the lateral panel
assembly with two sheet metal screws.
11. Connect the FAN connectors to the fan
assembly. Use tie-wraps to secure the fan
wires
NOTE: There is no polarity requirement for
these connections.
12. Connect the power cord wire harness to
the vacuum pump shelf assembly, while
supporting the back panel to relieve stress
on the power cord after connecting.
SP00D00609 2018-03-26
ACS 753, ACS 763, ACS 863 Service Manual
13. Install the back panel assembly.
14. Restore compressor plumbing and/or
perform the steps to re-install the compressor.
15. Connect the unit to a power source and
place the power switch on. The fan should
run. If the fan does not run, refer to the
Diagnostics and Testing section.
ss01994
Figure 3-8. Fan Assembly
68
Upper mounting hole
Lower mounting hole
Robert Bosch GmbH