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Service Manual 73
Page 24 of 32
Bracket Access Hole
Seal
Gland
Collar
Pin
Figure 10 – Single Seal in Out-Board Location
It is always recommended to replace the rotor if scoring is present on the shaft. If the
old one is being reused, lightly polish the shaft, in order to remove minor defects.
INSTALL THE LOCATING COLLAR (see Figure 7):
Using a needle nose pliers (or similar tool), install the locating pin by inserting it
through the hole in the bracket into the hole in the shaft.
Position the collar so the side with the slot for the locating pin is towards the housing.
Slide the collar over the shaft until it engages with the locating pin.
INSTALL THE STATIONARY SEAT INTO THE GLAND (see Figure 7):
Lightly lubricate the o-ring on the stationary seat and then press the seat into the
gland. If the gland has an anti-rotation pin, make sure the pin is aligned with the slot
in the seal seat.
INSTALL THE MECHANICAL SEAL ONTO THE SHAFT.
Lightly polish the shaft in order to remove any minor defects.
Place the seal head on the rotor shaft. A light lubricant will assist. Proper location of
the seal is with the back portion against the collar. If the seal head has setscrews,
tighten them once the seal head is properly located.
Plug the access holes when finished with the 1/2“ NPT plug.
!
CAUTION
The highly polished seal faces should not be touched during the assembly process as any minor
scratch could result in leakage once in service.