S SERIES PUMPS
OM-06111
MAINTENANCE AND REPAIR
PAGE E - 14
damage is extensive and the terminal plate and ter
minals are to be replaced, simply cut the power
cable leads above the terminal collars and heat‐
shrink tubing, and discard the terminal plate and
terminals.
If damage is not extensive and it is necessary to re
place the terminal plate (2) or terminal compo
nents, carefully cut away the tubing and adhesive.
Disconnect the power cable leads from the termi
nal posts, and separate the terminal plate (2) from
the terminal housing (1). Unscrew the terminal
posts (3), and remove the terminal collars (5),
posts and dyna seal washers (4) from the terminal
plate.
Remove the hardware (7 and 8) securing the green
and yellow ground leads to the terminal housing.
Reinstall the hardware.
See
Terminal Housing/Power Cable Reassemb
ly
if no further disassembly is required.
Intermediate And Motor Housing Disassembly
(Figure E-1)
See
PUMP END DISASSEMBLY
, and remove all
pump end and seal components.
With the pump end disassembled and the motor
cavity drained of oil, secure the pump in an in
verted position. Remove the hardware (35 and 36)
securing the intermediate (27) to the motor hous
ing (1).
Do not
remove the hardware (25 and 26)
around the rotor shaft (31) at this time.
Hook a three‐leg‐sling in the intermediate flange
holes and hoist the intermediate, rotor and shaft
(31), bearing cap (32) and both ball bearings (30
and 34) from the motor housing as an assembly. If
necessary, tap around the parting surfaces with a
soft faced mallet to loosen the seal between the in
termediate and motor housing. Remove the motor
housing gaskets (2, 3 and 4).
Cover the motor housing with a clean, lint free cloth
to avoid contamination by dirt or other foreign ma
terial.
Rotor And Bearing Removal
(Figure E-1)
Set the intermediate and rotor assembly on a clean
work area. Leave the lifting slings attached and re
duce the tension slightly. Remove the hardware
(25 and 26) securing the bearing cap to the inter
mediate. Steady the rotor and separate the inter
mediate. If necessary, tap the impeller end of the
rotor shaft with a soft faced mallet to loosen the
seal between the lower ball bearing (34) and the in
termediate bore.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected
in place
. It is
strongly
recommended that the bearings
be replaced
any
time the shaft and rotor
assembly is removed.
Before removing the bearings from the rotor shaft,
clean and inspect the bearings
in place
as follows.
Clean the bearings thoroughly in
fresh
cleaning
solvent. Dry the bearings with filtered compressed
air and coat with light oil.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven
tilated area; free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain
ers.
Rotate the bearings by hand to check for rough
ness or binding and inspect the bearing balls. If ro
tation is rough or the bearing balls discolored, re
place the bearings.
The bearing tolerances provide a tight press fit
onto the shaft and a snug slip fit into the motor
housing and bearing bore. Replace the shaft and
rotor (as an assembly), the motor housing or inter
mediate if the proper bearing fit is not achieved.
If replacement is required, use a bearing puller to
remove the upper and lower ball bearings from the
