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Page 8
WEIGHT= XX.X LB
AUTOMATIC
?
#
>>
WEIGHT= XX.X LB
VACUUM
? #
ENTER
*
A/C HAS PRESSURE
GO TO RECYCLE
#
ENTER
ENTER VACUUM
TIME XX MIN
#
>< ENTER
PEFORM LEAK
TEST
? Y/N#
< ENTER
ADD OIL? Y/N#
< ENTER
START?
#
ENTER
TIME LEFT=XX MIN
PUMP ON
PUMP OFF XX MIN
CONTINUE
?
#
ENTER
ADD OIL NOW
CONTINUE
?
#
ENTER
DEEP VACUUM
1. Set up the AC880 and turn the Main Power Switch ON.
2. Attach the Red and Blue Hoses to the A/C System per the vehicle
manufacturer's instructions and open the Red and Blue Hose Valves.
3. Using the Keypad, press the “Up Arrow” key two times to display “WEIGHT=
XX.X LB” “VACUUM?
#” and press the ENTER key. The Display will read
“ENTER VACUUM” “TIME XX MIN
#”.
* This screen will display if the AC880 senses a pressure in either the High or Low
Pressure Hoses. When this occurs, the A/C System must be emptied using the
Recover/Recycle procedure on Page 6. Press the ENTER key to return to the
Main Menu.
4. Press the “Up Arrow” key to change the value of the field. Press the “Right
Arrow” key to change to a different field. The value entered must be greater than
zero. Press the ENTER key to accept the value. The Display will read
“PERFORM LEAK” “TEST? Y/N
#”.
5. Press the “Right Arrow” key to move the cursor between Y and N to select
whether or not the AC880 pauses at the end of Vacuuming so that a vacuum
leak can be detected in the A/C System. Press the ENTER key to accept the
Yes or No choice. The choice entered is stored in memory and comes up as the
default the next time the procedure is used. The Display will read “ADD OIL?
Y/N
#”.
6. Press the “Right Arrow” key to move the cursor between Y and N to select
whether or not the AC880 pauses at the end of Vacuuming (or Vacuum Leak
Checking) to allow the Adding of Oil to the A/C System. Press the ENTER key
to accept the Yes or No choice. The choice entered is stored in memory and
comes up as the default the next time the procedure is used. The Display will
read “START?
#”.
7. Press the ENTER key to start the Vacuum Pump.
The Vacuum Pump will turn On, the Display will read “TIME LEFT=XX MIN”
“PUMP ON” and the minutes remaining will count down on the Display. The
Vacuum Pump will turn OFF when the Display reads zero minutes.
8. If a Vacuum Leak Check was selected by choosing Y in Step 5 the Display will
read “PUMP OFF XX MIN” “CONTINUE?
#” and the Attention Light will turn ON.
The elapsed time since the Vacuum Pump turned OFF will count up on the
Display. An increasing pressure on the Low Pressure Gauge is evidence of a
vacuum leak in the A/C System. Press the ENTER key to return to the Main
Menu or to Add Oil if selected in Step 6.
9. If Add Oil was selected by choosing Y in Step 6 the Display will read “ADD OIL
NOW” “CONTINUE?
#”, and the Attention Light will turn ON. Refer to Figure 4
and connect Oil Charge Bottle (11) to Oil Charge High Side (7) or Oil Charge
Low Side (10) based on the vehicle manufacturer’s instructions for charging high
or low side. Open the valve on the Oil Charge Bottle (11), and leaving it open
until the correct amount of oil has left the Oil Charge Bottle. Close the valve on
the Oil Charge Bottle and press the ENTER key to return to the Main Menu.