compartment. While the crew cleans the engine compartment, you can perform
the task of removing the starter relay assembly.
To remove the starter
relay, simply remove relay harnesses and fasteners.
The MASTER switch is
already in the Off position and battery cables were disconnected in
preparation of power pack removal.
You are now ready to remove the fire
sensing elements located at the bottom portion of the engine compartment.
c. Before REMOVAL of the fire sensing elements, note the present
location and routing of the sensing element.
Should you install a new
sensing element, it must be installed using the same location and routing of
the old element. Using Figure 12 as an example, disconnect the connector of
sensing element (Item 1, Figure 12) from the bulkhead elbow coupling and cap
the elbow coupling. Now disconnect the connector of sensing element (Item
1, Figure 12) from the straight coupling (Item 3, Figure 12) and cap the
straight coupling. Now that the sensing element connectors are disconnected
from the couplings, the sensing element (Item 1, Figure 13) must now be
removed from the 24 mounting and clip assemblies (Item 4, Figure 13) by
releasing the quarter-turn fasteners (Item 5, Figure 13) and opening the
clip assembly. Once the clip assembly is opened, remove the sensing element
with the attached rubber bushing (Items 1 and 6, Figure 13). To remove the
24 mountings and clip assemblies (Item 4, Figure 13), remove the screw (Item
7, Figure 13) and lockwasher (Item 8, Figure 13). Be sure to discard the
old lockwashers.
NOTE:
d. INSPECT the rubber bushings, the bulkhead couplings, the mounting
and clip assemblies, and the fasteners for serviceability prior to
installation of the sensing elements. Items not meeting the serviceability
requirements (rusted, bent, stripped) will be discarded and new items
installed.
e. INSTALLATION of the fire sensing elements is accomplished in a
careful manner to ensure proper operation of the detection system.
CAUTION
When hand shaping sensing element for installation, do
not damage sensing element by crushing or too much
bending (allowable radius - 6 inches minimum). Ensure
1/2-inch to 3/4 inch clearance between sensing element
and personnel heater exhaust tube.
17
OD1700
Previous Page
