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Personal injury or death can result from escaping fluid under pressure. Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. Always use a board or cardboard when checking for a leak. |
| Machine ECM Event Identifier (EID) Codes | ||
|---|---|---|
| Code and Description | Conditions which Generate this Code | System Response |
| E0692 (2) Power Train Oil Tank Temperature High |
Activated when the oil temperature reaches |
Warning level 2 alerts the operator that a machine system requires attention. The operator should check the involved system condition or perform maintenance on the involved system at the earliest possible time. On the electric drive tractors, all Level 2 Events are logged. |
| E0692 (3) Power Train Oil Tank Temperature High |
Activated when the oil temperature reaches |
Warning level 3 requires changing the operation of the machine or performing a maintenance procedure. Failure to correct the source of this warning may result in damage to the involved machine system components. |
The event codes in Table 2 may also be logged if the gauge for the power train oil system consistently operates in the warning region (red indicator).
| Machine ECM Event Identifier (EID) Codes | ||
|---|---|---|
| Code and Description | Conditions which Generate this Code | System Response |
| E0658 (1) High Power Inverter 1 Temperature |
Activated when the Generator side Power Inverter temperature is at 89° C (192.2° F) for more than 3 seconds. | Warning level 1 alerts the operator that a machine system requires attention. The operator should check the involved system condition or perform maintenance on the involved system at the earliest possible time. On the electric drive tractors, all Level 1 Events are logged. |
| E0658 (2) High Power Inverter 1 Temperature |
ECM will derate the Power Train operation. Activated when the Generator side Power Inverter temperature is at 91° C (195.8° F) for more than 5 seconds or 92° C (197.6° F) for more than 1 second. | Warning level 2 alerts the operator that a machine system requires attention. The operator should check the involved system condition or perform maintenance on the involved system at the earliest possible time. On the electric drive tractors, all Level 2 Events are logged. |
| E0658 (3)
High Power Inverter 1 Temperature |
ECM will severely derate the Power Train operation. Activated when the Generator side Power Inverter temperature is at 95° C (203.0° F) for more than 1 seconds. | Warning level 3 requires changing the operation of the machine or performing a maintenance procedure. Failure to correct the source of this warning may result in damage to the involved machine system components. |
| E0659 (1)
High Power Inverter 2 Temperature |
Warning level 1 alerts the operator that a machine system requires attention. The operator should check the involved system condition or perform maintenance on the involved system at the earliest possible time. On the electric drive tractors, all Level 1 Events are logged. | |
| E0659 (2)
High Power Inverter 2 Temperature |
Warning level 2 alerts the operator that a machine system requires attention. The operator should check the involved system condition or perform maintenance on the involved system at the earliest possible time. On the electric drive tractors, all Level 2 Events are logged. | |
| E0659 (3)
High Power Inverter 2 Temperature |
ECM will severely derate the Power Train operation. Activated when the Motor side Power Inverter temperature is greater than 102 °C (215.6 °F). | Warning level 3 requires changing the operation of the machine or performing a maintenance procedure. Failure to correct the source of this warning may result in damage to the involved machine system components. |
- Power train oil level is low
- The power train oil cooler has leaks
- The power train oil contains a large amount of air
- The temperature sensor is not operating properly.
- The power train oil cooler is plugged.
- The fan motor is not operating properly
- The scavenge screen is obstructed. There is a large amount of oil.
- Cold oil by-pass valve leaking back to tank.
Note: Care must be taken in order to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the machine. You must be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component that contains fluid. Dispose of all fluids according to local regulations.
Ensure that the power train oil level is in between "OPERATING ZONE" marks on the dipstick. Refer to Operation and Maintenance Manual, SEBU9127, "Power Train Oil Level - Check".
If the oil level is low proceed, to "The Power Train Oil Cooler has Leaks" in order to determine if the power train oil is leaking.
The Power Train Oil Cooler has Leaks
Inspect the oil and coolant reservoirs on the machine and perform an SOS analysis to determine if there is cross contamination between the systems.
Look for leaks, increased fluid levels in other systems (cross contamination), increased levels in the propulsion module sump, or any oil at all that has accumulated in the generator housing.
Thoroughly examine all surfaces, tubes, and connections on the power train oil cooler for signs of leaks. If oil is leaking, dirt and dust will adhere to the oily surfaces more than dry surfaces. Tighten any loose connections or fittings that might be leaking and recheck for leaks. The power train oil cooler should be replaced if there are leaks on surfaces in addition to the fittings.
Note: Be sure to differentiate between coolant that may be leaking and oil that may be leaking. The odor may help to make this determination.
The Power Train Oil Contains A Large Amount Of Air
Obtain a power train oil sample.
The sampling valve for the power train oil is located on the power train oil filter on the left side of the machine. Refer to Special Publication, SEBU6250, "Fluid Recommendations for All Caterpillar Machines, S·O·S Oil Analysis" for information that pertains to obtaining a sample of the power train oil. Refer to Special Publication, PEHP6001, "How To Take A Good Oil Sample" for more information about obtaining a sample of the transmission oil.
Check the hydraulic lines and check the fittings on the inlet side of the power train oil pump for leaks. Hydraulic lines and hoses that are part of the suction side of a circuit can draw air into the system during operation if there is a failed connection, hose, or line.
The Temperature Sensor Is Not Operating Properly
The sensor outputs a voltage signal that corresponds to the temperature of the power train oil. The voltage signal is input to the machine ECM. As the temperature of the power train oil changes, the resistance of the sensor changes. As the resistance of the sensor changes, the indicator for the power train oil temperature in the Message Display will change.
- Inspect the temperature sensor for proper operation.
- Repair the components and/or replace the components, if necessary.
The Power Train Oil Cooler Is Plugged
- Check for restrictions in the oil cooler lines.
- Check for restrictions in the cores of the oil cooler.
Inspect the internal components of the power train oil cooler for contamination that creates a blockage or restriction between the copper tubes in the cooler core. Contamination inside the copper tubes comes from coolant contamination. Coolant contamination may restrict the coolant flow through the small copper tubes that will render the cooler inefficient. Coolant contamination can also leave a residue buildup on the inside of small copper tubes in the power train oil cooler.
Inspect the external components for contamination buildup. The external buildup is due to oil contamination. Oil sludge can leave a coating on the exterior of the copper tubes.
In either of these situations, the residue or the sludge buildup can act as an insulator to heat transfer that will render the cooler inefficient. If a residue buildup occurs between the copper tubes in the cooler core, oil flow around the copper tubes will be diminished, which will greatly reduce the efficiency of the cooler. If the cooler becomes inefficient, the overall temperature of the power train oil will increase.
- Repair the components and/or replace the components, if necessary.
The Fan Motor Is Not Operating Properly
- Measure fan pump pressure with a hand gauge in order to determine if there is problem with the fan motor.
The fan pump pressure reading should be ≥
17237 kPa (2500 psi) at the top three engine speed settings. - If the pressure is not ≥
17237 kPa (2500 psi) , then repair or replace the fan motor.
The Power Train Oil Screens Are Obstructed
Inspect the power train oil screens. Refer to Operation and Maintenance Manual, SEBU9127, "Power Train Oil Screens - Clean". Remove any obstructions.
Cold Oil By-Pass Valve Leaking Back To Tank
The cold oil by-pass valve limits the pressure in the system during cold oil operation by returning some oil back to the tank when the cold oil valve is actuated. This by-pass reduces the amount of flow to the propulsion module and thus reduces the inlet pressure at the propulsion module.
- Check propulsion module inlet pressure.
- If pressure is low check manifold and valve for debris in the valve. Check for a damaged or cut seal. Check for a stuck valve.