until the bearing is removed. Refer
to Figure 4-22.
P3
P15
Inside Diameter
1”
1 1/4”
Outside Diameter
2”
2 3/4”
3. Repeat step 2 to remove the other
bearing. Good support used on
the inner races will prevent bear-
ing damage.
4C Inspection of Components
Thoroughly clean all parts. All com-
ponents should be examined for wear
and corrosion. Replace any parts
showing visible wear.
Check to be certain that a press fit
still exists between the shaft and the
bearings. New bearings, or at least
cleaned and regreased bearings, are
recommended.
Check the shaft for galling, pitting,
and corrosion. Surface corrosion on
the pump portion of the shaft must be
removed so the seals will slide freely
during assembly. The shaft diameter
should be no smaller than .002” be-
low the nominal fractional seal sizes.
Remove any nicks or burrs which
may have occurred during disassem-
bly. Reclean parts as necessary.
4D Reassembly
All parts should be visually inspected
and cleaned or replaced as outlined
in 4C above. It is recommended that
the bearings be replaced any time
the bearing pedestal is disassembled
for service.
1. Using an arbor press, install the
bearings on the shaft prior to in-
stalling the shaft into the pedestal.
A steel “donut” with the proper
inside diameter and outside diam-
eter, refer to Chart 1, should be
used between the arbor face plate
and the lower bearing to insure
proper installation and to prevent
bearing damage. The bearings
BEARING PEDESTALS
A.
Preliminary
B.
Disassembly
C.
Inspection of Components
D.
Reassembly
E.
Testing and Final Adjustments
4A Preliminary (P3 and P15)
1. Disconnect the inlet and outletpip-
ing before unbolting the pump. If
the pipes are corroded, use pen-
etrating oil on the threads to aid in
removal.
2. Unbolt the pump from the base
and remove. Disassembly instruc-
tions for the pump are found in
section 4, T51 PUMP ENDS. All
work on the unit should be per-
formed on an elevated workbench
whenever possible.
The disassembly and reassembly
procedures are broken into two sec-
tions covering the following units:
4B — Disassembly of the P3 and
P15 Bearing Pedestals
4D — Reassembly of the P3 and
P15 Bearing Pedestals
Exploded views of each unit, Figures
4-19 and 4-20 are provided for refer-
encing the numbers in the following
procedures, i.e. flinger (#21).
4B Disassembly (P3 and P15)
The following tools and equipment
are needed for disassembly of the P3
and P15 units:
1. Soft plastic or wooden mallet.
2. Arbor press or vise.
3. 3/4” X 6” piece of water pipe for
P3, 1-1/4” X 6” for P15.
4. Internal snap ring plier.
5. Penetrating oil.
When installing or removing bearings
from the shaft, the use of an arbor
press is strongly recommended.
To disassemble the pedestal:
Refer to Figures 4-19 and 4-20 for
reference to the numbered parts in
the procedures below.
Section
T51 • E51
Page 516
Dated
February 2014
1. Remove the flinger (#21) located
in the pump end of the bearing
pedestal (#3).
2. Using a snap ring plier, remove
snap ring (#4).
3. Open the jaws of the vice approxi-
mately 2-1/4” for model P3 and 3”
for model P15.
4. Place the pedestal, pump side
down, on the jaws. Refer to Fig-
ure 4-18.
5. Using a plastic or wooden mallet,
gently tap on the end of the shaft
until it slides out of the frame. Both
bearings should come out with the
shaft. Do not use a metal ham-
mer; severe damage to the shaft
will occur.
6. Using the arbor press remove the
two (2) bearings from the shaft.
Refer to Figure 4-21. If the inner
race is well supported during this
operation, no damage will be done
to the bearings.
Figure 4-22
Figure 4-18
Figure 4-21
If an arbor press is not available, a
bench vise may be substituted using
the following instructions.
1. Remove the pedestal and close
the jaws to approximately 1-1/8”
for model P3 and 1-3/8” for model
P15.
2. Place the shaft with either bearing
resting on top of the jaws and
gently tap on the end of the shaft
4.Service
T51 • E51 SERIES
