40
| 607 PRO Challenger
Series
www.natvac.com | 800.253.5500
8� Place a cushion beneath the
rotor to prevent damage when
the front endplate is unbolted
(cardboard, rag, etc�)�
9�
(Fan Cooled Only)
Remove the
fan guard on the drive end side
of the pump� Remove the fan
and key from the rotor drive end
by first loosening the fan hub
screw. You may find it
necessary to drive the hub apart
with a screw driver in order to
slide the fan assembly off
of the rotor�
10� Repeat step 6 to drop the rear
end of the rotor down onto the
cushion�
(Fan Cooled Only)
Remove
the six (6) hex bolts holding
the aluminum fan shroud to the
front endplate and remove the
shroud�
11� Gently guide the front
endplate off of the (2) 3/8-16
threaded rod segments to
fully settle the rotor body on
the base of the housing bore�
Remove the rotor with care
from the housing. Place a Tag
on the housing side that
corresponds to your
drive end side!
