Robinair 17700Z Recovery, Recycling, Recharging Unit - Manual (Page 11)

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34700Z Recovery, Recycling, Recharging Unit
Replenish A/C System Oil
Oil may be replenished through the high side after the
vacuum function, or with an oil inject tool after
charging the vehicle.
IMPORTANT : To prevent damage to
equipment, charge only the amount of oil that
was removed from the A/C system during the
recovery process. If no oil was removed from
the A/C system during recovery, DO NOT
charge any oil into the A/C system.
Empty the oil drain bottle before recovering an A/C
system to prevent an inaccurate oil charge.
1. Refer to the vehicle service manual to determine the
correct oil for the A/C system being serviced.
2. Check the oil drain bottle to determine the amount of
oil that was removed. See Figure 5.
3. 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.
4. Attach the oil injector bottle to the unit.
5. Press the INJECT OIL button. The unit looks for
pressure in the hoses, and temporarily displays
EQUALIZING PRESSURE.
6. When prompted, press and hold INJECT OIL until
the oil level in the oil injector bottle reaches the o-ring.
7. Press STOP / NO after the oil inject is complete to
recharge the system with refrigerant. The display
will prompt into the charge mode. (Charge mode
after injecting oil will only allow a high-side charge.)
Note: You must recharge the A/C system with
refrigerant at this time to ensure all the oil is
delivered.
Oil Injector
Bottle
Oil Drain Bottle
Operating Instructions
Figure 5
O-ring