National Vacuum Equipment 607 challenger series Replacement And Rebuild Manual page 18

18 | 607 Challenger Series
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�
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�
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