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 TM 55-1925-273-10-1
0067 00
BOW THRUSTER ENGINE
1.
Ensure engine sump, marine gear sump, bow thruster lube oil system and jacket water cooling levels are at the
proper operating levels (normal level is 1/2 of sightglass).
2.
Line up fuel oil system to allow engine to take suction from and return to port day tank by opening valves FO-
30, FO-13 and FO-33 or stbd tank by opening valves FO-30, FO-14, FO-15, FO-34 and FO-35. Prime fuel oil
system with handpump at bow thruster engine.
3.
Line up cooling system by opening valves ASW-18, ASW-17, ASW-21, ASW-22 and AE-28.
4.
Ensure that diesel starting air receivers are charged and that starting air system to bow thruster engine is lined-
up by opening valves CA-5, CA-4, CA-3, CA-11, CA-12, CA-1 and CA-2.
5.
Ensure oiler on air starting system is at proper level (normal level is 3/4 full).
6.
Ensure that propulsion control air receiver is charged and propulsion control system is set up for normal
operation. Transfer switch at the EOS station shall be in the remote position with pilothouse having control and
bow thruster throttle in the neutral position.
7.
Ensure that 24V control power is available to engine.
8.
Release engine lockout switch.
9.
Turn start switch to run position and start engine by lifting the start button on the local control panel or by
depressing the remote start button in the pilothouse. Release start button after engine starts, (observe illumina-
tion of remote run light in pilothouse when starting remotely).
10. After engine starts, observe local or remote diesel engine instrumentation to verify proper engine operation.
11. Allow engine to warm up until all temperatures and pressure have stabilized.
12. Speed and direction of bow thruster rotation shall be controlled by moving the bow thruster throttle at any of
the four bow thruster control stations in the desired thrust direction. (See Propulsion Control System Instruc-
tions.)
13. To operate engine in local manual control, lift on hand throttle to change from air control position and engage
teeth in manual position. Rotate handle CCW to increase speed. Engine may be stopped by pushing throttle
lever CW past idle.
14. To secure engine, remove load and allow temperatures to cool approximately 3 - 5 minutes if engine has been
under load.
15. Stop engine by depressing the stop button on the local control panel or by depressing the remote stop button in
the pilothouse. Release stop button after engine stops, (observe extinguishing of remote run light in pilothouse
when stopping remotely). When stopping remotely, hold stop button down until run light extinguishes.
Placard 8. Bow Thruster Engine
0067 00-13
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