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Maintenance MAC2000
Caution: The filter drier should not be changed with the MAC2000
still connected to the vehicle. Disconnect the unit by closing the vehicle’s
service-port valves and disconnecting the high- and low-side hoses from
the vehicle.
1. If not already done, plug the MAC2000 into a properly grounded
AC outlet; set the Power switch to ON; then wait until the unit
completes its self diagnostics. The screen will display “Select
mode” when ready.
2. From the Main menu, press the Next menu function key to display
Menu 2.
3. Follow the on-screen prompts; then press the Start key to begin
evacuating the filter.
4. When completely evacuated, follow the on-screen prompts and
remove the old filter drier by unscrewing it counterclockwise.
Dispose of the used filter in a proper manner.
5. Lubricate the O-rings of a new filter drier with a light grease or
saliva; then hand tighten until it bottoms out.
6. Press the Reset key after the new filter has been installed. This
will remove any air that may have entered the system during the
changeover process.
4.2 Replacing the External Source Tank
The internal storage tank contains enough refrigerant for several jobs,
but it’s important to replace the external source tank soon after the
message “Source Tank empty” is displayed so that the internal
storage tank isn’t depleted during a charge operation.
30 Instruction 2072-0400