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 TM 55-1925-273-10-2
0120 00
WARNING
Use eye protection when checking test valves. Failure to comply could result in severe eye
damage, blindness, or death.
Do not permit personnel to stand between or outboard of the engines during blowdown.
Failure to comply can result in injury or death.
High noise levels are present in the engine room and AMS 1 when the engines are operat-
ing. Hearing protection must be worn at all times when the engines are operating. Failure
to comply can result in permanent loss of hearing.
b.
Pull OUT on the governor's alarm switch plunger (figure 11, item 1) to prevent the engine from starting
unexpectedly.
c.
Press and hold the ENGINE START pushbutton (figure 15, item 3) to crank the engine for 1-2 complete revolu-
tions. Release the ENGINE START pushbutton when finished cranking.
! CAUTION
If there is any sign of water or oil being ejected at the cylinder test valves, or any indication of
obstruction while rotating the engine, refer to unit maintenance. Do not attempt to start the
engine until the problem has been corrected, or serious damage to the main engine could result.
d.
Check the port main engine test valves (figure 10, item 1) and air box blow down valves (figure 13, item 6) for the
presence of oil and/or water. If no oil or water are detected, continue with this procedure. If oil or water are
detected, notify the maintenance supervisor.
e.
Shut all the test valves (figure 10, item 1).
23. Ensure that the port main engine overspeed trip lever (figure 12) is in the RUNNING (latched) position.
24. Push IN the governor's alarm switch plunger (figure 11, item 1).
25. Check that the governor oil level is at the mid-point in the sight glass (figure 11, item 2). If the oil level is low, add oil
through the fill cap (figure 11, item 3). Refer to TM 55-1925-208-24 or the maintenance supervisor for the oil specifi-
cation.
NOTE
Removing the rear oil pan handhold cover is only necessary after an engine rebuild or a pro-
longed layup period.
26. Notify unit maintenance to remove the rear oil pan handhold cover, and confirm that lube oil is flowing from the gear
train.
27. Replace/verify that all handhold and engine top deck covers are secure on the port main engine.
0120 00-15
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