- Engine:
- C11 (S/N: KCA1-UP)
- C13 (S/N: KCB1-UP)
- C15 (S/N: BXS1-UP; MXS1-UP; NXS1-UP)
- C13 (S/N: KCB1-UP)
Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information.
Refer to Disassembly and Assembly, SENR9693, "Precooler - Remove" and Disassembly and Assembly, SENR9693, "Precooler - Install"
Safety Section
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Do not operate or work on this engine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Caterpillar dealer for replacement manuals. Proper care is your responsibility. |
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Accidental engine starting can cause injury or death to personnel working on the equipment. To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system. Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on. |
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Required Parts
| Quantity | New Part Number | Description |
| 1 | 319-6059 | Diaphragm Kit |
Installation Instructions
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| Illustration 1 | g03207176 |
319-6059 Diaphragm Kit | |
When replacing a failed precooler, inspect the coolant diverter valve diaphram. If the diaphram does not have the white Teflon disk, replace the coolant diverter valve diaphragm using 319-6059 Diaphragm Kit .
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| Illustration 2 | g03218961 |
Level 2 coolant sample data | |
If oil is present in the level 2 coolant sample, check the coolant diverter valve as well.