OM-07089
S SERIES PUMPS
PAGE E - 17
MAINTENANCE AND REPAIR
Secure the pump in an upright position. Remove
the hex locknuts (66) securing the terminal hous
ing assembly to the motor housing assembly (70).
(Figure E-3)
Carefully raise the terminal housing (8) from the
motor housing until the terminals (17 and 22) are
accessible. Loosen the allen head setscrews (23),
and disconnect the leads from the terminal posts.
The motor cable leads are protected against short
ing by heat‐shrink tubing. Cut the tubing away to
provide access to the terminal post connections.
Remove the hardware (18, 19 and 20), and discon
nect the motor leads from the terminal posts. Sepa
rate the terminal housing and power cable assem
bly from the motor housing.
No further disassembly is required to test the stator
or power cable.
To disconnect the power cables (1) from the termi
nal housing, pull the terminal plate (21) away from
the terminal housing. Remove the hardware (9, 10
and 11) securing the green and yellow ground lead
terminals (9). Reinstall the hardware. When
shipped from the factory, the connections between
the cable leads and the terminal collars (14) were
encapsulated in heat‐shrink tubing (12) and
bonded to the terminal plate with silicone adhe
sive. (In service, the adhesive may have been re
placed by potting compound during previous re
pair.)
NOTE
Do not
remove the heat shrink tubing from the pow
er cable leads unless the terminals require replace
ment. If replacement is required, the connections
between the leads and terminals
must be
sealed
with heat shrink tubing before applying the silicone
adhesive (see
Terminal Housing And Power
Cable Reassembly
).
If terminal replacement is required, carefully cut
away the tubing and adhesive, and loosen the al
len head setscrews (13). Disconnect the cable
leads from the terminal collars, and separate the
terminal plate (21) from the terminal housing (8).
If it is necessary to replace the terminal plate (21) or
terminal components, unscrew the terminal collars
(14), and remove the terminal posts (17) and dyna
seal washers (15) from the terminal plate (21).
To disconnect the power cables, remove the nuts
(4) securing the terminal glands (5) to the terminal
housing (8). Slide the gland back along the power
cable.
Compress the wire mesh of the cable grips (2) and
move it back along the power cable. Oil the gland
bushings (6) and terminal housing bore and pull
firmly on the cable. (Allow the oil to leak in around
the bushing by agitating the cable in the bore.) Af
ter the bushing has been loosened, the cable
should pull out far enough to expose the gland
bushing. Apply oil on the cable jackets and slide
the bushings and washers (7) back along the
cables. Pressure exerted on the bushings may de
form the cable jackets. If such is the case, addition
al oil and effort will be required to remove the bush
ings.
NOTE
If the rubber bushings cannot be removed from the
terminal housing as indicated, it may be necessary
to cut the bushings into small pieces or cut the
cables.
See
Terminal Housing/Power Cable Reassemb
ly
if no further disassembly is required.
Motor Housing Disassembly
(Figure E-1)
See
PUMP END DISASSEMBLY
, and remove all
pump end and seal components.
With the pump end disassembled, secure the
pump in an inverted position. Remove the hard
ware (14, 15 and 69) securing the motor housing
(70) to the intermediate (47).
Do not
remove the six
capscrews (48) around the rotor shaft (40).
Intermediate And Rotor Removal
(Figure E-2)
Install three lifting eyes (not supplied) in the holes
for the capscrews (69) in the intermediate (47), and
hook a three‐leg sling to the lifting eyes.
