Flowserve P-50 Durametallic - Manual (Page 6)

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2.5 Position the P-50 with the gland tight against the seal chamber
face. Turn the gland so that the flush tap is as close to the 12:00
o'clock position as possible and so that the flush piping will clear
the bearing frame. Tighten the gland nuts evenly in a diagonal
sequence. Do not overtighten the gland nuts, as this can warp
seal parts and cause leakage.
2.6 Assemble the pump. Avoid pipe strain. Align coupling properly.
2.7 With the impeller, shaft,
coupling, and bearings
in their final operating
positions, tighten the
P-50 set screws.
See Figure 5.
2.8 Remove the setting
devices from the drive
collar. See Figure 6. Save
the setting devices for future
use when the pump impeller
is reset or when the seal is
removed for repairs.
2.9 Turn the shaft by hand
to ensure unobstructed
operation.
2.10 See Operational
Recommendations
before start-up.
Figure 5
Figure 6