ACS 653, ACS 663 Service Manual
SP00D00624 2021-04-08 Robert Bosch GmbH
34
Diagnostics and Testing
1. Connect (or verify) service hoses to
the test tank and turn the quick couplers
clockwise.
2. Select the icon from the main
menu. Unit shows the ENTER VEHICLE
DATA input page, confirm with icon.
The following display may show:
If there is sufficient vacuum available, this
displays:
Machine is asking to input:
• Charge amount (min is 10 g).
• Select charge hoses (3 option: High, Low
and Both side).
3. Select icon to continue.
Machine is asking to input:
• Oil inject (Yes or No). If select No unit
don’t inject any oil.
• Oil amount: xxx ml (is possible set as ml,
oz or lb).
• Oil type: 2 option (PAG or POE).
• Type the measured ambient temperature
and set the viscosity of oil being used.
4. Select icon to continue.
Machine is asking to input:
• Select icon to enable the UV
dye injection.
5. Conrm with icon and begin the charge
process. Moving or bumping the unit at this
point may result in an inaccurate charge.
Charging please wait displays:
6. When the charge cycle gets close to the
desired weight value, the machine slows
down. It will charge, settle, charge again,
settle, etc.
7. If there is not sucient refrigerant in the tank
to charge the system, the display shows:
8. Select icon to exit. May require tank ll.
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