Bosch ACS 753 User Manual

ACS 753, ACS 763, ACS 863 Service Manual
SP00D00609 2018-03-26Robert Bosch GmbH
69
Electrical
Replacement Scale Assembly/Magnet
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
when disconnecting hoses.
Pressurized refrigerant may be
present in hoses. Point hoses away
from you and anyone nearby.
WARNING: If scale assembly circuit
are not calibrated, the tank can
overll,causingpossibleexplosion
and/or vehicle overcharge.
Instructions
These instructions outline the steps to replace
the scale assembly. See Figure 3.9.
Removing Scale Assembly
1. Disconnect the unit from the power source.
2. Remove the shroud.
3. Disconnect the liquid hose and vapor hose
from the tank.
4. Disconnect the wires from the air purge
solenoid, tank temperature sensor, and
pressure transducer.
5. Remove the two bolts securing the tank to
the scale.
6. Remove the tank from the scale.
7. Remove the two bolts holding the scale in
place.
8. Remove the ground wire connected to the
center divider of the unit and the harness
connected to the control board.
9. Slide scale forward and remove.
Installing Replacement Scale Assembly
1. Slide the rear ange of the scale under the
retaining lip of the chassis.
2. Connect the ground wire from the scale to
the center divider.
3. nstall the scale into the unit fastening
securely with two bolts.
4. Connect the scale assembly wire to the
control board.
5. Connect the unit to the power source.
6. Perform scale calibration (next chapter).

Bosch ACS 753 Specifications

General

Brand	Bosch
Model	ACS 753
Category	Air Conditioner
Language	English