S SERIES PUMPS
OM-06111
MAINTENANCE AND REPAIR
PAGE E - 20
NOTE
Clean the cable leads and terminal plate in the ar
eas to be sealed with cleaning solvent. Incomplete
sealing will occur if the surfaces are dirt, oil or
grease coated.
Assemble the terminal posts (3), dyna seal wash
ers (4), and terminal collars (5) to the terminal plate
as shown in Figure E-2.
NOTE
Both the power cable and motor conductor leads
should be tinned prior to reassembly.
Slide a length of heat‐shrink tubing (20) up over
each of the power cable leads. Insert the leads in
the terminal collars and secure them using the al
len head setscrews (6). Slide the tubing down each
lead until the terminals are covered, and the tubing
contacts the terminal plate. The tubing
must
ex
tend up the leads far enough to ensure a good
seal.
Carefully heat each tube with a commercially avail
able hot air gun capable of producing 750
F
(399
C), and shrink the tubes around the cable
leads and terminal collars.
Use
only
Dow‐Corning 737 Silicone Adhe
sive (see the Parts List Manual for the part
number) or potting compound for sealing
terminal housing connections. Use of un
approved sealing products will void the
pump warranty.
NOTE
Do not
use a mold or reservoir with the silicone
adhesive.
See Figure E-6 and check terminal locations. Ap
ply a 1/4 to 3/8 in. (6,4 to 9,7 mm) thick layer (maxi
mum) of silicone adhesive around each of the ter
minal posts as shown in Figure E-5. Remove any
adhesive from gasketed surfaces.
Silicone Sealant
Figure E-5. Silicone Adhesive Sealing
All air pockets, voids or gaps in the sili
cone sealant must be removed to en
sure a water‐tight seal in the terminal
housing. Otherwise, moisture entering
the terminal housing could cause a
short circuit, resulting in pump damage
and possible serious injury or death to
personnel.
Allow the adhesive to cure for at least one hour be
fore securing the terminal housing to the motor
housing.
