SHAFT 2157488 - Caterpillar

The troubleshooting guide, when followed exactly as shown, can be an aid for the serviceman to find if a problem exists, and to find the cause of the existing problem.System Troubleshooting Charts And Procedures
The troubleshooting charts that follow show a definite sequence to be followed for a logical, one by one elimination of many variables. There are specific procedures written to check out different components of the system, and they can be found at the end of the troubleshooting charts. When the chart makes reference to a specific procedure, do this procedure before proceeding any farther in the chart.When a problem is found and corrected, always check the system again by use of verify procedure as shown at bottom of charts.Some areas of the charts say to go to an alphabetical letter. When told to go to this specific letter, find this letter with a circle around it in the chart. Follow the test procedures from this point to the bottom of the chart.