National Vacuum Equipment 607 challenger series Replacement And Rebuild Manual - page 15
607 Challenger
Series | 15
www.natvac.com | 800.253.5500
19 Shift the housing so that
the intake (Square port) is
hanging slightly off of the
rebuild work surface
Place one of the 0 007” shims
between the rotor and rotor
bore so that the shim is within
the housing and will not inter-
fere with the endplate when
they are reinstalled
Divert the pull wire into the
housing cavity and out through
the intake port
Repeat for both ends of the
rotor
18 Inspect the original vanes for
any delamination, chipping
or other damage
A new vane is flush with the
outside diameter of the rotor
If any of the vanes are worn
more than 1/4”, chipped or
delaminated they should be
replaced
We highly recommend replac-
ing vanes in sets Apply a liberal
amount of lubricant to the vanes
before installing in the rotor slots
It is always a good idea to have
a spare set of replacement
vanes on hand to reduce pump
downtime