Nautilus Transducer Reassembly - GE Corometrics 170 Series Service Manual

Nautilus Transducer Reassembly

7-32
Serviceable Assemblies: Nautilus Transducer Reassembly
CAUTIONS
VISIBLE INSPECTION—Ensure the base sealing groove, flat-
seal o-ring, sealing surface, and sealing screws are free of visible
surface defects, dust, dirt, and foreign material.
SINGLE-USE COMPONENTS—Do not reuse case top, flat-seal
o-ring, sealing screws, or screw caps. Discard these items each
time a transducer is opened.
SEALS—Wetting of seals is not required.
1. Install new flat-seal o-ring.
2. Install case top and tighten five sealing screws. Hand tighten each screw a small
amount going in a clockwise direction, skipping every other screw. Repeat until
all screws are torqued to 48 in-oz.
3. Apply one drop of Loctite adhesive
screw cap (Figure
4. Apply one drop of Loctite adhesive
screw cap. Insert the curved screw cap being careful to align it according to the
curvature of the case top; the small burr on the screw cap side should face the
outside edge of the transducer. (See
screw cap firmly into place. Repeat for the remaining three curved screw caps.
5. For button-style transducers only, install and torque belt knob to
48 in-oz.
6. Refer to "Testing a Repaired Transducer (TOCO or US)"
page 7-34.
1
Using Loctite Adhesive #454 is recommended in order to secure the screw caps.
170 Series Monitor
2000947-004
1
to the perimeter of the hole for the flat
7-5). Insert flat screw cap and press into place.
1
to the perimeter of the hole for a curved
Figure 7-10 and Figure 7-11.) Press the
on
Revision C