Lubrication Procedure; Automatic Oil Pump - NVE MEC 5000 Owner's Manual & Operating Instructions

Lubrication procedure for all vacuum pumps on start up
(This procedure must be followed prior to the operation of a new
vacuum pump.):
• With force feed lubrication type, install dripper on top of pump
and connect rubber lines.*
• Remove dipstick and fill oil reservoir with
recommended turbine oil.
• With 540 RPM pumps: fill gear housing to level of clear plastic
sight plug on the side of the housing with SAE 90 gear oil.
• Remove plastic cap on air inlet and pour 2 oz. turbine oil into
pump. Start pump slowly and with valve in suction position,
pour 2 oz. turbine oil into air inlet.
• At this point oil should be visible in the dripper or oil lines.
Adjust dripper flow to 1 drop every 2 seconds.
*Dripper will be shipped loose or taped to the bottom of the
changeover valve handle.

automatic oil pump

• The automatic oil pumps are set at the factory
during pump testing and should require no further adjustment
during pump installation.
• The pumps are adjusted to one drop every two seconds per
outlet. This oil rate equals 2.7 fluid oz. per hour.
16 | MEC 5000, 6500 & 8000/P
www.natvac.com | 800.253.5500