Assembly Of Pumps With Type E-Bearing Frame - GE OSMONICS TONKAFLO SS Series Installation, Operation And Maintenance Manual

6. To remove the bearing cup(s) from the bearing frame, use a brass or
soft steel rod and hammer to knock them out.
7. Inspect both oil seals and replace if the seals are no longer pliable or
if they were leaking (Section 6.5.2, Assembly of Pumps with Type
E-Bearing Frame).
6.5.2 Assembly of Type E-Bearing Frame
STEPS
1. If removed, press new bearing cup(s) into the bearing frame, making
sure they are fully seated.
2. If removed, press a new bearing cone #1 (Figure 6.10, Setting Bearing
Frame Overhaul) onto the shaft, holding the bearing square with the
shaft while starting. Make sure the washer behind bearing cone #1
has been replaced. The correct setup may be checked by placing the
shaft into the bearing frame and measuring the 2.772 inches ± 0.010
inch (70.41 ± 0.25 mm) recess (Figure 6.11, Setting Bearing Frame
Shaft End Play).
3. With the shaft placed in the bearing frame, press on the second
bearing cone, holding it square with the shaft while starting. Press
until the bearing cone is fully seated against the bearing cup and
there is no end play.
4. Reinstall the tanged flat washer, lock washer and nut. Hand tighten
the lock nut and lightly set a tang on the lock washer into a slot on the
lock nut. If desired, a 3/8-16 NC x 3 bolt may be inserted through a
side port in the bearing frame and into the set screw hole in the end
of the bearing frame shaft (Figure 6.8, Separation of Liquid End from
Bearing Frame) when tightening the lock nut.
5. Using a press, force bearing cone #2 back against the tanged flat
washer by pressing on the motor end of the shaft. This sets the
bearing so the shaft end play may be checked.
6. Check the end play of the shaft by pulling and pushing on the shaft.
The end play should be 0.005-0.008-inch (0.127-0.203 mm) for direct-
driven pumps, using a dial indicator (Figure 6.11, Setting Bearing
Frame Shaft End Play). End play of 0.0065-inch (0.165 mm) or less is
difficult to feel by hand. Readily noticeable play means further
adjustment is necessary.
7. If further adjustment is necessary, press bearing cone #2 to reseat it
against the bearing cup.
22