﻿GET_GEVOMechL2_02_01_01_81 - STEP-BY-STEP Screen
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Typical steps to replace the lubricating oil filter elements are as follows: 

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<b>Warning: </b>To prevent personal injury and potential equipment damage, ensure that the engine cannot be started before removing, installing, or adjusting any engine component. 

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Place the BS in the OFF position to prevent starting attempts. 

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Also, place the FPB, LCCB, and BCCB in the OFF position, and apply a warning tag on the EC switch. 

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<b>Warning: </b>If the locomotive is equipped with AESS, the diesel engine may start without operator action. 

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Exercise caution when working around the radiator cab. 

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Ensure that AESS is disabled before performing any maintenance on the locomotive. 

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Failure to do so may result in death or serious personal injury. 

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<b>Caution: </b>Do not use pressurized air to "force purge" oil from the system. 

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A pressure relief valve within the pump prevents an overpressure condition by routing the excess pressure back to the engine crankcase, which could introduce water or other contaminants into the lubricating oil system. 

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1. If the lubricating oil system is not already drained, as discussed in the Lubricating Oil System Drain and Initial Fill section of this module, drain the oil from the lubricating oil filter housing as follows: 

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a. Open the lubricating oil filter housing vent valve on the inlet pipe to the oil filter housing. 

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b. Open the lubricating oil filter drain back valve to allow the oil to drain to the engine crankcase or, if the under-platform oil drain plug is removed and the drain valve is opened, to barrels or a hose system for collection. 

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<b>Note: </b>Allow 15 minutes for the hot oil to drain. 

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If the oil is cold, draining takes much longer. 

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2. Loosen the 10 nuts securing the filter housing door and crack the door seal. 

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<b>Note: </b>If the housing has been drained properly, very little oil will drip from the housing. 

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Absorb any dripping oil with shop rags.
