AIR CLEANER GP 2669247 - Caterpillar

Proper operation and maintenance are key factors in obtaining the maximum life and economy of the engine. If the directions in the Operation and Maintenance Manual are followed, costs can be minimized and engine service life can be maximized.The time that is needed for the engine to reach normal operating temperature can be less than the time taken for a walk-around inspection of the engine.The engine can be operated at the rated rpm after the engine is started and after the engine reaches operating temperature. The engine will reach normal operating temperature sooner during a low engine speed (rpm) and during a low-power demand. This procedure is more effective than idling the engine at no load. The engine should reach operating temperature in a few minutes.Gauge readings should be observed and the data should be recorded frequently while the engine is operating. Comparing the data over time will help to determine normal readings for each gauge. Comparing data over time will also help detect abnormal operating developments. Significant changes in the readings should be investigated.Hydrocarbon Mitigation
The hydrocarbon mitigation is a feature to protect the DOC against temperatures below 325° C (617° F). Temperatures below this range can damage the aftertreatment of the machine. The initial occurrence displays as a warning and then if temperatures do not increase by the operator or strategy, the machine will go into shutdown. Messages appear sequentially as follows:
First : Key cycle to warning
Secondary : Warning to shut downIf the warning messages are not acknowledged, then the shutdown counter begins. Once the engine has shutdown for low exhaust temperatures, the 173-18 Engine Exhaust Manifold #1 Temperature #1: Low - Moderate Severity (2) will return until the engine has successfully reached target temperatures.Once exhaust temperatures below 325° C (617° F) are observed for an hour, the Hydrocarbon Mitigation feature begins and the following conditions below become active.Cylinder Cutout Strategy
The cylinder cutout starts at 1000 rpm. The hydrocarbon mitigation monitors the exhaust and intake target temperatures and increases speed if temperatures are not achieved in intervals. The intervals are 20 minutes and with 200 rpm increments. The speed range for the strategy is 1000 rpm to 1800 rpm with a minimum run time of 100 minutes.Note: This strategy only runs in non-work mode.The strategy success criteria is based on the following:
Intake air manifold temperature over 10° C (50° F)
Exhaust manifold temperature over 325° C (617° F)If successful, the machine will continue to run indefinitely at the current rpm until taken out of non-work mode.Exhaust Temperature Low Code Actions
Once the 173-18 Engine Exhaust Manifold #1 Temperature #1: Low - Moderate Severity (2) warning message is shown, there are two actions the can be taken to remove them:Non-Work Mode
Put the machine in Non-Work mode.
This will allow Hydrocarbon Mitigation to start automatically and attempt to achieve the target temperatures for the intake and exhaust.
If the strategy does not achieve target temperatures, the engine will return to low idle for 60 minutes and then Hydrocarbon Mitigation begins.
If the strategy continues