VALVE GP-CONTROL 1207611 - Caterpillar

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725 (S/N: B1L1-504), 730 (S/N: B1M1-410), 730 EJECTOR (S/N: B1W1-184), 735 (S/N: B1N1-320), 740 (S/N: B1P1-621) and 740 EJECTOR (S/N: B1R1-193) (1) Indicator for the Filter Warning
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725 (S/N: B1L505-UP), 730 (S/N: B1M411-UP), 730 EJECTOR (S/N: B1W185-UP), 735 (S/N: B1N321-UP), 740 (S/N: B1P622-UP) and 740 EJECTOR (S/N: B1R194-UP) (1) Indicator for the Filter WarningThe indicator for the filter warning (1) alerts the operator that a filter requires service. The filters that can cause a warning include the fuel filter. Refer to the following information for a full explanation of the uses of the filter warning.
Filter Warning (1) - Indicator (1) alerts the operator that a filter requires service. A category 1 warning alerts the operator that the air filter is restricted and/or the fuel filter has been restricted for at least one hour. The air filter and/or the fuel filter requires immediate service. A category 2 warning alerts the operator that the air filter is plugged and/or restriction of the fuel filter has continued for more than four hours. The air filter must be serviced in order to avoid black smoke and loss of engine power. The fuel filter must be serviced in order to avoid loss of engine power. A category 3 warning alerts the operator that either the transmission filter or the OTG filter is plugged. The plugged filter requires immediate service. Refer to Table 1 for a breakdown of the categories of warnings and the reasons for generating the warnings that are indicated by the filter warning (1).
Table 1
Category    Possible Causes    
1     The air filter is restricted.
The fuel filter has been restricted for at least one hour.    
2     The air filter is plugged.
The fuel filter has been restricted for more than four hours.    
3     The transmission filter is plugged.
The OTG filter is plugged.    Note: Because a variety of different filters can cause a category 1 warning, a category 2 warning and a category 3 warning, it is important to use ET, or the messenger display (If equipped), in order to check the cause of the warning.