National Vacuum Equipment 607 challenger series Replacement And Rebuild Manual - (Fan Cooled Only) Reinstall
18
| 607 Challenger
Series
www.natvac.com | 800.253.5500
27
(Fan Cooled Only) Reinstall
the fan assembly, the key
should be pushed all the way
to the end of the key slot on
the drive end
Make sure there is sufficient
clearance to mount the fan cover
when positioning the fan assem-
bly Tighten the fan hub screw
Refer to step 9 for additional
information
26 Reinstall the oil pump drive
key in the non-drive end of
the rotor
Use hardening gasket sealer on
both sides of the oil pump gas-
ket. Apply teflon tape to oil pump
bolts
Install oil pump to the rear bear-
ing cover Ensure the oil pump
shaft is aligned with the drive key
Reconnect the oil lines to the oil
pump, and front bearing
Do not overtighten fittings to the
plastic oil line, or oil flow may be
restricted