RG 170.B
ELECTRONIC ENGINE - LOGIC
-The inlet manifold temperature is greater than 190C.
Engine Protection System
Water in fuel detector sensor.
The engine protection system monitor's temperatures and pressures and registers diagnostics failures whenever a abnormal operation condition occurs.
When there is water in the filter housing, the indicator ligth will flash, indicating that the water should be drained.
In this case, the engine power starts to decrease and the operators is warned by the stop indicator or warning indicator.
Troubleshooting codes
When this condition happens, the operator must stop and park the machine in order to prevent damage to the engine. IMPORTANT Do not Shut-off master switch, with starter key in the “start” position, error code 434(lack of energy to electronic engine controller) will come on. This error code will not affect engine operation, however it will be stored in the memory. Stop by protection Then engine stops automatically when one of the temperature, level or pressure sensors detect that the engine is operating in a below or above the normal operation conditions.
Operation failures are identified by failure codes, that are registred and shown by the control system. These failure codes are shown using indication at the maintenance panel. NOTE: The failure codes do not cover all faillures that an engine may have. There are 2 kinds or faillure codes; The faillures codes from the electronic fuel system and the engine protection faillure codes. Maintenance panel. The manintenance panel indicates the operator when a minatenance operation is necessary(like engine oil change interval). NOTE: Problems with the VSS(Vehicle Speed Sensor) or with the batteries may influence the data shown by the maintenance panel. Indicators ligths.
The stop indicator will flash for a 30 seconds to warm the operator. Inlet air heating The engine admission inlet air is heated when the engine is started in cold whether conditions, resulting in better starting and reduction of white smoke. The indicator ligth at the instrument panel indicate when starting of the of the engine is possible. The ECM (Engine Control Module) determines the heating total time based on the inlet manifold temperature (pre heating).
A
B
C
D
E
F
(A) - Warning light (yellow) indicates a problem that may be verified by the operator. Does not required imediate stop of the machine. (B) - Stop ligth: (red) indicates a serius problem with the engine. Requires imediate stop of the machine.
Once the engine is started, the air heater will be on until the inlet air temperature and cooling fluid temperature reach the required values.
(C) - Mantenance ligth: Indicates that an engine maintenance operation must be performed. The system monitors the distance and time that machine has been used.
The heater is swiched off whenever one of the following situations occur:
(D) - Start ligth: The operator must wait until this light turns off to start the machine.
- Heating time exceeds 11 seconds;
Read the SAFETY RULES on the preceding pages for machine protection and the safety of employees
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