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 TM 55-1925-273-10-1
0075 00
c.
Verify the proper heat exchanger coolant level using coolant level gauge (figure 7, item 1).
d.
Move the governor control lever (figure 7, item 2) to the half engine speed position (approximately straight up).
e.
On the bow thruster engine control panel, turn the start/stop pushbutton (figure 7, item 3) clockwise to release the
pushbutton to the OUT position.
NOTE
Starting air start pressure must be at least 100 PSI (6.9 bar) to ensure that the engine starts
properly.
f.
Verify that the starting air pressure gauge reads at least 100 PSI (6.9 bar).
! CAUTION
Oil pressure should rise within 15 seconds after the engine starts. If oil pressure does not rise,
stop the engine immediately to prevent damage, and refer the problem to unit maintenance.
g.
Position the START-STOP toggle switch (figure 7, item 4) up to the START position to crank the engine. As soon
as the engine starts, release the toggle switch, and verify the toggle switch returns to the RUN position.
h.
Allow the engine to idle 3 to 5 minutes, or until the coolant temperature gauge (figure 7, item 5), begins to rise.
i.
Check the engine gauges (figure 7, items 5 and 6), and ensure the readings are in the green range.
6.
Operate the bow thruster from the pilothouse console by completing the following actions:
a.
Place the COMMAND TRANSFER plunger (figure 2, item 2), UP in the engaged position.
b.
Move the bow thruster engine throttle control lever (figure 2, item 1), to the left for port thrust and to the right for
starboard thrust.
7.
Secure the bow thruster by completing the following actions.
a.
Place the bow thruster engine throttle control lever (figure 2, item 1) in the neutral (center) position.
b.
Place the governor control lever (figure 7, item 2) in idle position (local control and locked).
c.
Operate the engine at idle for at least 5 minutes.
d.
Set the START-STOP switch (figure 7, item 4) to the OFF position, or push the governor control lever (1) in the aft
direction until the engine stops.
e.
Push in the EMERGENCY STOP pushbutton (figure 7, item 3).
f.
Wait until the bow thruster engine stops completely, then push the shaft brake plunger (figure 6, item 1) down to
lock the bow thruster shaft.
0075 00-5
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