Robinair 342000 Refrigerant Service Solution - Manual (Page 20)

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© 1999 Robinair, SPX Corporation
Operating Instructions
REPLENISHING A/C SYSTEM OIL
When running the engine, be sure the vehicle is in PARK
and always provide adequate ventilation.
Before charging the A/C system, you must replenish any oil removed from the
A/C system during the recovery process. Charge only the amount of oil that
was removed from the A/C system during the recovery process. Check the oil
drain bottle to determine the amount of oil that was removed. Be sure to empty
the oil drain bottle before recovering the next A/C system to prevent an inaccu-
rate oil charge.
NOTE: If no oil was removed from the A/C system during recovery, DO NOT
charge any oil into the A/C system.
To use this function, you must first pull a vacuum on the system. This feature is
accessed through the charge menu.
1. Press the CHARGE key.
2. Enter the amount of the charge.
3. Press the NEXT key.
4. Press and hold the OIL INJECT key.
5. To charge, press the START key.
NOTE: The unit will only charge through the high side after oil inject.
6. Select the correct oil for the A/C system being serviced. Refer to the vehicle
manufacturer’s service manual.
7. Adjust the O-Ring around the oil injector bottle to the required oil charge
level. For example, if the bottle’s oil level is at 4 ounces and you need 1/2
ounce of oil to replenish the A/C system, place the O-ring at the 3-1/2
ounce level.
8. Press the CHARGE key. Press the NEXT key.
NOTE: Depending on your altitude, you may not be able to achieve 28" Hg. It
is important that the altitude setting in the Set-Up Menu is correct for your
location. The 342000 uses this information to calculate and provide an equiva-
lent set point for your altitude. For instance, at 7000 feet, the 342000 pulls to
21" Hg before completing evacuation.
WARNING!