7
Use only new lubricant to replace the amount
removed during the recycling process. Discard
used lubricant per applicable federal, state and
local requirements.
5. Verify the message on the LCD reads
“RECOVERY COMPLETE.”
6. Press the RESET key. The LCD should read
“CHECK OIL LEVELS.”
7. Measure the oil in the oil drain bottle. Dispose of
recovered oil in a proper manner.
8. Close the service valves and disconnect the
high and low side auto service hoses from the
automobile.
Models with the optional refrigerant identifier
37881/37888
The unit will display “IDENTIFY REFRIGERANT?”
To make your selection use the left or right arrow
keys to toggle from YES to NO. Press the ENTER
key to make your selection and then press the Start
key to start the process. If YES is selected the unit
will begin the refrigerant identification process.
If the refrigerant does not pass the identification
process (98% purity) the unit will display the error
message “ CONTAMINATED” and the screen will
show the results of the identification. Press the
Reset key and follow the instructions on the screen
and the unit will clear itself automatically. Repeat
the identification process to insure the proper
identification of the refrigerant purity level.
If the unit fails the second time follow the on screen
instructions and take the appropriate steps to re-
move the contaminated refrigerant with a separate
unit for removal of contaminated refrigerant.
WARNING: DO NOT RECOVER CONTAMINATED
REFRIGERANT WITH THIS UNIT. RECOVERING
CONTAMINATED REFRIGERANT WILL VOID ALL
WARRANTIES AND MY CAUSE DAMAGE TO OTH-
ER AUTOMOBILES THAT YOU SERVICE IN THE FU-
TURE.
RECOVER, cont.
VACUUM
The vacuum function of the 37880 SERIES is de-
signed to remove air/moisture from the automobile
A/C system by pulling a deep vacuum. This mode
is most often used after completing a repair that
required opening the A/C system to the atmos-
phere. Moisture in an A/C system can cause erratic
operation and must be removed before recharging
the system with refrigerant.
VACUUM Operational Steps
NOTE: If desired, the gauges of the 880 SERIES
can now be used to aid investigation of an A/C sys-
tem problem. Ensure the automobile A/C system is
turned off prior to selecting a mode on the ma-
chine.
1. Verify the auto air conditioning system is off.
2. Select Vacuum option from the main menu.
3. Press the ENTER key.
4. When the LCD reads
“SET VACUUM TIME,”
set
the vacuum time by using the numeric keypad
until the desired time is shown. press ENTER to
accept the vacuum time shown on the LCD.
Bypass vacuum time by setting time to zero
(FULL CYCLE MODE only). Note: We recom-
mend 10-15 minimum vacuum time to ensure
proper charging.
5. When the LCD reads
“SET VACUUM HOLD
TIME,”
set the vacuum hold time by using the
numeric keypad until the desired time is shown.
press ENTER to accept the vacuum hold time
shown on the LCD. Vacuum hold time can be
bypassed if the time is set to zero.
6.
The display will now read “INJECT OIL AFTER
VACUUM”
YES or NO Press the left or right
arrows to select YES or NO.
7. The LCD will read
“CONNECT HOSES PRESS
ENTER TO CONTINUE”
8. Connect the high and low side auto service
hoses to the respective high and low side ser-
vice ports on the automobile A/C system. Open
the service hose valves.
9. Press START key to begin vacuum operation.