8
4.3.1.
Top mounting of the tube bundle
1)
Take the tube bundle with the mounting materials
out of the wooden case (see the lifting
instructions of section 3.2). Close the case to
avoid that the remaining parts in the case get lost
or damaged.
2)
Inspect the tube bundle thoroughly before
installation. Transportation and rough handling
may have caused damage to the piping or the
coating. Contact Duramax Marine® when damage
is observed.
3)
Clean the gasket faces and make sure they are
free of defects (burrs, pits, dents, etc.).
4)
Position the mounting frame gasket (item 5 of
fig. 8a) on the mounting frame.
Make sure the gasket is clean.
Do not use sealant, grease, glue or any other agent
when installing the SBR gasket.
5)
Carefully lower the tube bundle into the sea chest.
Do not to damage the tubes and the coating.
A damaged coating may reduce the lifetime
of the box cooler and will accelerate galvanic
corrosion of the sea chest!
6)
Position the supplied collar bolts in the
appropriate bolt holes of the tube plate and
fasten hand tight (see fig. 8a).
7)
Tighten collar bolts alternate and crosswise (see
section 4.4.4) with a torque wrench to guarantee
an even setting of the gaskets.
Refer to section 4.4.4 for tightening torques.
Note that the collar bolts must ensure a
watertight sealing when the water cover is
removed.
8)
When the collar bolts are tightened, the water
cover can be mounted.
Continue with section 4.4.
Besides top mounting, there are two other methods
for installation of the box cooler. These are described
in the next two sections.
1
Water cover
2
Collar bolt
3
Gasket between water cover and tube bundle
4
Tube bundle
5
Gasket for mounting frame
6
Washer
7
Nut
8
Mounting frame into the top plate
9
Top plate of the sea chest
Figure 8a. Top mounting arrangement with collar bolt.
Figure 8b. Top mounting arrangement, standard bolts
