| A | B |
|---|
| 109.1 Describe the purpose of the Min Engine/Reduction Gear Lube Oil (L/O) system. | Keeps the main engine lubricated. Main engine - 3 lube oil pumps, Standard L/O pump pucks up at 15 psi, Emergency L/O pump - jacks over shaft, kicks in at 13 psi |
| 109.2a Describe the function of the following major components: Lube Oil Service Pumps (LOSPs) | pump oil throughout the system |
| 109.2b Describe the function of the following major components: L/O cooler | maintain outlet temp @120-130 degrees with seawater |
| 109.2c Describe the function of the following major components: L/O strainer | shift inspect and clean strainer @ 0000 every night underway looking for metal shavings |
| 109.2d Describe the function of the following major components: L/O purifier | Delovalve purification - centrifugal force used spins @ 1750 rpms, lube oil rides outside, impurities ride inside |
| 109.2e Describe the function of the following major components: L/O storage nd settling tanks | add steam when it heats up viscosity gets thinner, impurities drop to the bottom. Sends oil back to engine |
| 109.3 State the location of the L/O storage tanks. | two tanks on lower level engine room |
