Reassembling The Towfish; Figure 4-12: Transition Board - Klein 4000 Series Operation And Maintenance Manual

Disassembling and Reassembling the Towfish
4.3.2

Reassembling the Towfish

To reassemble the towfish:
Verify that the O-rings on both the forward and aft end caps are clean and free
1.
of dirt or scratches. Also use a lint-free cloth or paper towel to clean the
O-ring surfaces inside the towfish housing and apply a light coat of silicone
grease to these surfaces.
If dirt or scratches are present on an O-ring, replace it. When replacing an
O-ring, first clean the O-ring surface inside the towfish housing and the
O-ring groove in the end cap using a lint-free cloth or paper towel, and then
apply a light coat of silicone grease to the O-ring before installing it.
Insert the chassis into the aft end of the towfish housing, aligning the three
2.
locking screws with the three holes in the towfish housing.
Loosen the three locking screws until the heads of the screws are flush with
3.
the outside surface of the housing.
Connect the jumper and compass cables to the connectors on the aft end cap.
4.
Slide the tail cone into the towfish housing, aligning the locator pin under the
5.
tail cone with the slot in the housing and threading the tail cone retaining bolt
into the aft end cap.
Tighten the tail cone retaining bolt.
6.
Inspect the two connectors
7.
on the Transition board to
ensure that there are no bent
pins. The Transition board
is shown in Figure 4-12.
While aligning the three
8.
locking screws with the
three holes in the towfish
housing as shown in
Figure 4-13 on page 4-10,
carefully insert the forward
end cap into the forward
end of the towfish housing
until it bottoms out.
Loosen the three locking
9.
screws until the heads of
the screws are flush with the outside surface of the housing.
Connect the two transducer cables, matching the colors with the connectors on
10.
the forward end cap.
Figure 4-12: Transition Board
4-9