ACS 653, ACS 663 Service Manual
SP00D00624 2021-04-08 Robert Bosch GmbH
30
Introduction
Due to normal wear and tear, these units require regular maintenance to ensure safe operation
and optimum performance. The above chart provides a schedule of the minimum recommended
maintenance tasks.
After (SEE TABLE) of refrigerant has been
filtered. Refer to “Filter Change” in the
Maintenance section of this manual.
Model
R134a
Replacement lter at:
68 kg (alert 56 kg)
Model
R1234yf
Replacement lter at:
150 kg (alert 138 kg)
When the lter is replaced or every 100 hours.
Refer to “Vacuum Pump Maintenance” in the
Maintenance section of this manual.
Monthly.
Monthly. Refer to “Calibration Check” in the
Maintenance section of this manual. Every year
all scales must be calibrated by an authorized
service center.
Whenever it is necessary. Refer to “Scales Reset”
in the Maintenance section of this manual.
Automatic every 10 days. Refer to “Pressure
Decay Leak Test” in the Maintenance section
of this manual (for R1234yf only).
Every yearly — performed by an authorized
service center (for R134a only).
Monthly.
Monthly. Use a clean cloth.
Monthly. Use a clean cloth.
Daily.
Monthly.
Every yearly — performed by an authorized
service center.
Daily.
Every six months or whenever it is dirty and / or
clogged. Replace the sample hose assembly
during every lter change. Refer to “Refrigerant
Identier Maintenance” in the Maintenance
section of this manual.
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