SENSOR GP-SPEED 1918305 - Caterpillar

Personal injury or death can result from high voltage.Moisture can create paths of electrical conductivity.Make sure that the electrical system is OFF. Lock out the starting controls and tag the controls "DO NOT OPERATE".
Accumulated grease and oil on an engine is a fire hazard. Keep the engine clean. Remove debris and fluid spills whenever a significant quantity accumulates on the engine.
Periodic cleaning of the engine is recommended. Steam cleaning the engine will remove accumulated oil and grease. A clean engine provides the following benefits:
Easy detection of fluid leaks
Maximum heat transfer characteristics
Ease of maintenanceNote: Caution must be used to prevent electrical components from being damaged by excessive water when the engine is cleaned. Pressure washers and steam cleaners should not be directed at any electrical connectors or the junction of cables into the rear of the connectors. Avoid electrical components such as the alternator, the starter, and the ECM. Protect the fuel injection pump from fluids to wash the engine.Ensure that care is taken that the safety labels, emission label, and any information labels are not removed during engine cleaning.Ensure that care is taken that the safety labels, emission label, and all other information labels are not removed during engine cleaning.Aftertreatment
During the engine cleaning process, ensure that water or cleaning fluids cannot enter the aftertreatment system. If cleaning fluids enters the aftertreatment system, damage could occur.