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 (2) Ignite and insert starting cartridges in the holders.
take the remaining fuel oil filter out of service, and then
repeat the above procedure.
(3) When engine is started and warmed up, stop the
engine (para 2-6,) remove cartridge holders, then reinstall the
3-15. Engine Starting Aids
spring loaded safety relief valves.
a. General. To aid in starting the engine under extremely
cold and adverse weather conditions, starting cartridges are
3-16. Scavenging Pump (Air)
provided.
b. Use of Starting Aid. First. remove two or three of the
located at forward end of engine, and is driven by the
spring loaded safety relief valves from the cylinder heads,
crankshaft. It supplies scavenging air to the air receiver (box)
then proceed as follows:
at a pressure of between one and one half. and two and one
(1) Insert the starting cartridge holders in those
half psi. The pump receives its air from the air intake, and
cylinders from which the relief valve was removed.
from the crankcase breather (para 3-17).
1.
Scavenging pump
7. Fuel oil filter
2.
Cylinder head
8. Fuel oil pump
3.
Lubricator
9. Raw water pump
4.
Handwheel
10. Fresh water pump
5.
Injection pump
11. Lube oil pump
6.
Governor control
12. Breather, crankcase
Figure 3-18. Propulsion engine, port side view.
scavenging pump should the water inlet pipe be damaged
b. Disassembly.
during disassembly.
(1) Drain the engine cooling system and expansion
(2) Remove the inspection plate from troth sides of
tank. The drain valves are located below the exhaust
scavenging pump.
manifold.
This prevents water from spilling into the
.
3-47
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