SECTION TSM 144.1 ISSUE B PAGE 6 OF 10
11. The rotor and shaft can now be removed by tapping on
the end of the shaft with a soft leaded hammer or, if using
a regular hammer, use a piece of hardwood between the
shaft and hammer. The rotary member of the seal will
come out with the rotor and shaft.
11. Remove the mechanical seal rotary member from the
rotor and shaft assembly
12. KE, KKE, LQE, LSE: Remove the inner single row ball
bearing and bearing spacer collar from the casing. See
Figure 6.
Q, QS: Remove the single row ball bearing from the
casing. See Figure 7.
13. Remove the seal seat or stationary part of the seal from
the casing.
14. Disassemble the thrust bearing assembly.
Loosen the two setscrews in the flange outside diameter.
Rotate the end cap counterclockwise and remove. Remove
the ball bearing. See Figure 7.
The casing should be examined for wear, particularly in the
area between the ports. All parts should be checked for wear
before the pump is put together.
When making major repairs, such as replacing a rotor and
shaft; it is advisable to also install a new mechanical seal,
head and idler pin, idler and bushing. See “Installation of
Carbon Graphite Bushings,” page 8.
Clean all parts thoroughly and examine for wear or damage.
Check the ball bearings, bushing and idler pin and replace if
necessary. Check all other parts for nicks, burrs, excessive
wear and replace if necessary.
Check the bearings for roughness. Roughness can be
determined by turning the outer race by hand. Replace the
bearings if they have roughness.
Be sure the shaft is free from nicks, burrs and foreign
particles that might damage the mechanical seal. Scratches
on the shaft in seal area will provide leakage paths under the
mechanical seal. Use a fine emery cloth to remove scratches
or sharp edges.
OUTER BALL BEARING
OUTER BALL BEARING
BEARING HOUSING
BEARING HOUSING
INNER BALL BEARING
INNER BALL BEARING
BEARING SPACER COLLAR
BEARING SPACER COLLAR
BEARING SPACER COLLAR
BEARING SPACER
BEARING SPACER
SETSCREW
SETSCREW
SETSCREW
SETSCREW
ENDCAP
ENDCAP
SHAFT
SHAFT
LOCKNUT
LOCKNUT
FIGURE 6 - THRUST BEARING ASSEMBLY KE, KKE, LQE, LSE SIZES
FIGURE 7 - THRUST BEARING ASSEMBLY Q AND QS SIZES
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