TM 5-4310-452-141-12. GENERAL (Con't).3. Fuel Tank Filler Cap13. Automatic Blowdown Valve4. Air Cleaner Assembly14. Starter Motor and Solenoid5. Restriction Indicator15. Slave ReceptacleB. Exhaust Pipe16. Alternator7. 01 Cooler Fan17. Storage Batteries8. ON Filter Assembly18. Minimum Pressure and Service Valve9. Housing19. Belt Break Switch10. ON Separator20. Fuel Tank11. ON Temperature Bypass21. Engine Cooing Blower12. Muffler1-13. ENGINE.a.The engine for this unit is a Deutz, direct injection, air-cooled, four-stroke diesel.b.The strokes of a four-cycle diesel engine are as follows:(1)Intake Stroke. Air enters the cylinder through the air inlet valves and is drawn Into the cylinder by thesuction force created by the piston as it moves from a top position to a bottom dead center position.(2)Compression Stroke. After the piston has passed bottom dead center, the air inlet valve closes. As thepiston moves upward, the air is compressed and reaches a temperature of 1000°F-1200°F (538° C-649°C). Shortlybefore the piston reaches top dead center, fuel Injection into the cylinder is started.(3)Power Stroke. The atomized fuel spray injected into the cylinder is immediately ignited by the hightemperature of the compressed hot air, and burning continues as the hot gases of combustion expand and force thepiston downward. Combustion proceeds until the end of fuel injection. Shortly before the piston reaches bottom deadcenter, the exhaust valve opens.TA5053881-12
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