MAHLE RTI RHS780 - Manual (Page 8)

September 24, 1999 Page 7
DRAINING RECOVERED OIL
Oil is separated from the recovered refrigerant and MUST be removed following
EACH Recover/Recycle procedure to determine the amount (if any) necessary to add
into the A/C System as follows:
Note: The RHS780 must be connected to power source. Draining Recovered
Oil may be done while the RHS780 Vacuum Pump is ON.
1. Setup the RHS780 as shown on Page 4 and press and hold the Oil Drain Re-
pressurization Switch (17) for 5 seconds and then release it.
2. Slowly open the Oil Drain Valve (18) to drain any oil which may have been
removed from the A/C System. A Measuring Cup (19) is provided to collect the
oil.
Unless the A/C System had previously been overfilled, the RHS780 will typically
not remove enough oil to make replenishment necessary.
3. Close the Oil Drain Valve (18).
4. Press and hold the Oil Drain Re-pressurization Switch (17) for 5 seconds. This
permits any residual Non-Condensable Gas to be re-circulated for reprocessing
during the next recycle procedure.