Flowserve GTS Series - Manual (Page 7)

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5.7 Remove the spanner nuts 9 , retaining rings 54 , and drive collars 58
from the assemblies. Be careful not to dislodge the split rings 94 .
5.8 Orient the seal so the drive collar end is facing away from the rotor.
Carefully slide the seals onto the appropriate shaft diameter without the
sleeve gaskets 19 and drive collars 58 . If the split rings pop out, reinstall
them.
5.9 Install the sleeve gaskets 19 and drive collars 58 onto the shaft and slide
them into location against the sleeve end. Be careful not to damage the
sleeve gaskets when sliding them onto the pilot diameter.
5.10 Lubricate the sleeve gasket compression screws 40 with anti-seize and
install them into the adjusting collar 129 finger tight. Be careful not to
dislodge the split rings when threading the screws into the adjusting collar.
Important Note: In some instances it may be difficult to get the screw
started. In this case, use a longer screw in 1-3 locations to compress the
gasket enough to get the shorter screws started. Remove the longer
screws and start the remaining shorter screws, again only finger tight. If the
longer screws are not removed, they will extend behind the adjusting collar
after final installation. This reduces the allowable axial travel of the seal and
could cause failure if the screws contact the flange.
5.11 Install the flange gaskets 18 , retaining rings 54 , and the spanner
nuts 9 . Use anti-seize on the nut threads. Thread the spanner nut onto
the flange but do not compress the gasket. Compressing the gasket at
this time will result in a failure.
5.12 Install the other turbine rotor components onto the shaft.
5.13 Temporarily secure the seals into position on the rotor.
5.14 Install the rotor assembly into the turbine. Take care not to damage the
flange gaskets. Also, take care to locate the seals in the appropriate
grooves.
5.15 Install the turbine bearing caps. Make sure there is no interference with the
seal spanner nuts. Note that the nuts will move farther in when tightened to
compress the flange gasket.
5.16 Install the lock pins into the flanges. Rotate the flanges so that the lock pins
are in the slots in the lower casing. Make sure the pins rest below the split
line in the turbine.
5.17 Remove the screws 40-1 that secure the setting plates 103 to the
sleeves. Do not remove the screws 40-2 that secure the setting plates to
the flanges at this time.
5.18 Tighten the sleeve gasket compression screws 40 in the drive collars
through the access window in the spanner nut 9 . Be sure to tighten all