Service Manual 73
Page 15 of 32
C. Pumps with cartridge seal
Consult the separate seal instructions provided by the seal manufacturer.
INSTALL PACKING OR SEAL:
A. Pumps with packing
Install and seat each ring into the bracket stuffing box and stagger cut joints from one
side of the shaft to the other.
Loosely install the gland, using the gland studs, nuts and washers. The packing will be
adjusted on-site.
B. Pumps with single seal behind the bushing
(Out-Board location - See Figure 10)
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:
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.
Locating Pin
Locating Collar
Stationary Seat
Gland
Bracket
Gland O-ring
Seat O-ring
Shaft
Figure 7
Install the mechanical seal onto the shaft.
Lightly polish the shaft in order to remove any minor defects.
