Robinair 34788-I Recovery, Recycling, Recharging Unit - Manual (Page 21)

19
539602 Rev. H June 11, 2013
Maintenance
Change Vacuum Pump Oil
For maximum vacuum pump performance, change the
vacuum pump oil after every 10 hours of operation. (The
unit will display a prompt after 10 hours of operation.)
1. Press MENU. Use the arrow keys to select
MAINTAIN VACUUM OIL, and press START / YES.
The display shows how long the vacuum pump has
operated since the last oil change:
PUMP OIL TIME X:XX
TIME REMAINING X:XX
CHANGE OIL?
2. Press START / YES. The display shows VACUUM
OIL CHANGE TIME 2:00, and counts down to zero.
Allow the vacuum pump to run until it automatically
stops. The display then shows DRAIN OLD OIL AND
ADD 5 OZ NEW OIL.
3. Refer to Figure 16, and remove the brass plug from
the vacuum pump’s oil fill port. (The pump drains
faster when vented.)
4. Remove the oil drain fitting cap, and drain the oil into
a suitable container for disposal. Replace the cap.
5. Attach the flexible tube and cap to the oil bottle; pour
five (5) ounces of vacuum pump oil into the fill port.
6. Press START / YES. The display shows FILL PUMP
TO CENTER OF SIGHT GLASS, and the vacuum
pump starts. While the vacuum pump is running,
slowly add oil until the level rises to the center of the
reservoir’s sight glass.
7. Press STOP / NO. The counter resets to zero after a
vacuum pump oil change has been completed.
8. Replace the brass plug on the fill port. Press STOP /
NO to exit to the Main Menu.
CAUTION: To prevent personal injury, do NOT
operate the unit at any time without the brass plug
installed, because the vacuum pump is pressurized
during normal operation.
Review the laws in your jurisdiction to
determine the correct disposal procedure
for pump oil. It is the responsibility of
the user to determine if a material is a
hazardous waste at the time of disposal.
Ensure you are in compliance with all
applicable laws and regulations.
Oil Drain Fitting
Oil Fill Port
Sight Glass
Figure 16