National Vacuum Equipment 607 challenger series Replacement And Rebuild Manual page 19

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28� Install two (2) four-way
gaskets to the housing
interface�
Reinstall the four way mani-
fold, making sure to line up the
square port on the housing with
the square port on the four way
manifold�
Replace any gaskets / O-rings
as needed�
29� We highly recommend pres-
sure testing your pump for
leaks before putting it to
work� We test our pumps at
20 psi of pressure�
Put a 3" Male NPT plug in the
exhaust port and a similar
adapter that can connect to a
controlled pressurized air supply
in the inlet�
Spraying your pump with soapy
water while pressurized will
expose any bubbling air leaks in
your vacuum pump�
30� Reconnect the pump to its
oil reservoir and start at a
slow R�P�M�
Run the pump for a few min-
utes to allow oil to fill the lines.
Inspect the translucent oil lines
to check that oil is flowing.
The pump is now ready to go
to work!
607 Challenger Series | 19