10
Replacement of Cover Gasket for Padmount Switchgear Side-Hinge-2 Models
Field Service inStructionS
MN285009EN April 2019
9.2 Obtain the Aron Alpha Cyanoacrylate Adhesive
(AA-490 Type-201) provided in the Gasket Replacement
Kit (see Table 1 on page 1).
9.3 Adhere a gasket to the
first tank flange:
9.3.1 Start with the tank flange that has the female
puzzle ends.
9.3.2 Apply adhesive to the first tank flange. (See
Figure 45).
ote:
N
The female puzzle ends have glue
applied. Leave male puzzle ends
unglued at this step. Apply a 1/4-inch
drop of adhesive between every other
bolt hole on the tank flange. Refer to
the diagram in Figure 44 for guidance.
Figure 45.
9.3.3
Within one minute after applying adhesive:
a. Starting at a corner, place the first gasket
on the tank-flange surface with the profile
side up (toward cover) and the hole closest
to the exterior of the tank lip and raised
profile towards the inside of the tank.
b. Guide the gasket along the tank-flange
surface with one hand while aligning the
gasket bolt holes with the tank-flange bolt
holes. (See Figure 46.)
c. Verify that the bolt holes are aligned
between the gasket and the tank flange.
d. Tamp the entire length of the gasket by
hand to allow the liquid adhesive to spread
under the gasket surface. (See Figure 47.)
Figure 46.
Figure 47.
9.3.4
Within 15 seconds after tamping:
Make any
final adjustments to the gasket’s position.
9.4 Adhere a gasket to the
second tank flange
:
9.4.1 Apply adhesive to the adjacent tank flange.
ote:
N
Apply a 1/4-inch drop of adhesive
between every other bolt hole on the
tank flange. Refer to the diagram in
Figure 44 for guidance.
9.4.2
Within one minute after applying adhesive:
a. Obtain a gasket of the proper length for
the adjacent tank flange.
b. Connect the dove-tail joint of this gasket
with the previous gasket (Figure 48).
c. Guide this gasket along the tank-flange
surface with one hand while aligning the
gasket bolt holes with the tank-flange bolt
holes (Figure 49).
d. Verify that the bolt holes are aligned
between the gasket and the tank flange.
e. Tamp the entire length of the gasket.
Figure 48.
Dove-tail joint
Figure 49.
9.4.3
Within 15 seconds after tamping:
Make any
final adjustments to the gasket’s position.
9.5 Repeat step 9.4 to adhere a gasket to the
third tank
flange
.
9.6 Adhere a gasket to the
fourth (final) tank flange
:
9.6.1 Apply adhesive to the fourth tank flange.
ote:
N
Apply a 1/4-inch drop of adhesive
between every other bolt hole on the
tank flange. Refer to the diagram in
Figure 44 for guidance.
9.6.2
Within one minute after applying adhesive:
a. Connect the dove-tail joint (Figure 48) of
the fourth gasket with the third gasket.
b. Guide the fourth gasket along the tank-
flange surface with one hand while
aligning the gasket bolt holes with the
tank-flange bolt holes.
