WINDOW AS-FRONT 5236470 - Caterpillar

Illustration 12 g03137092Histogram Screens
Tab Functions At Bottom of Screen
Histograms
This tab pulls up the histogram menu.Clear
This tab is currently not available for Tier 4 engines.Clear All
This tab will clear the current histogram data for this key cycle.Show All Labels
This labels all bars in the graph.View Labels on Mouseover
This labels each bar in the graph as the mouse pointer is moved over the bar.Screen Shots
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The total number of occurrences.
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The amount of engine hours operated at indicated inlet temperature.
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The amount of engine hours operated at indicated coolant temperature.
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The amount of engine hours operated at indicated engine speed.
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The amount of engine hours operated at indicated intake manifold air temperature.
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The amount of engine hours operated at indicated intake manifold pressure.
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This screen is used to help understand the operator use of the disable switch and at what soot load the regenerations take place. Manual disable status 0 = regenerations allowed due to switch position. Manual disable status 1= regenerations not allowed due to switch position.
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This screen is used to illustrate load percentage at the current engine speed. This screen can be helpful in understanding how the engine is being used. The screen can also be used for comparison between similar machines and/or operators.
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This histogram is populated when the engine system has calculated a condition in which high exhaust temperatures are present. A fault code will not be logged when the system calculates a high exhaust temperature condition. But the high exhaust temperature will derate the engine to protect the engine system. This action is normal under most circumstances and no additional troubleshooting is necessary. Refer to Troubleshooting, "Exhaust Temperature is High" for additional information.
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There are certain engine conditions that put the engine in danger of turbocharger overspeed. The engines are calibrated and certified up to a certain altitude and ambient temperature limit. If the engine is operated outside this limit, the engine is more likely to experience turbocharger overspeed. In other words, the turbocharger has to work harder to maintain the desired boost pressure. This action is normal under most circumstances and no additional troubleshooting is necessary.