OM-07089
S SERIES PUMPS
PAGE E - 23
MAINTENANCE AND REPAIR
supplemented with two gaskets contained in the
overhaul gasket kit (see Options listed in the Parts
List).
NOTE
Clean the cable leads and terminal plate in the
areas to be sealed with cleaning solvent. Incom
plete sealing will occur if the surfaces are dirt, oil or
grease coated.
Slide the terminal housing (8) up the power cables
and temporarily secure it with the cable grips (2).
Assemble the terminal collars (14), dyna seal
washers (15 and 25), and the terminal posts (17) to
the terminal plate as shown in Figure E-3.
NOTE
Both the power cable and motor conductor leads
should be tinned prior to reassembly.
Slide a length of heat‐shrink tubing (12) up over
each of the power cable leads. Install the leads on
the terminal posts as shown in Figure E-8 and se
cure them using the hex head nuts (4). Slide the
tubing down each lead until the terminals are cov
ered and the tubing contacts the terminal plate.
The tubing
must
extend 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 terminals.
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.
Silicone Sealant
Figure E-8. Silicone Adhesive Sealing
See Figure E-9 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-8. Remove any
adhesive from gasketed surfaces.
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.
