Robinair 34788-H Recovery, Recycling, Recharging Unit - Manual (Page 23)

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560826 Rev. D, August 23, 2013
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 17, 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
Maintenance
Figure 17