CABLE AS 2730069 - Caterpillar

Remove Boost Line
(11) Air line (12) fitting10. Remove air line (11) from engine. Put plugs over the openings to keep dirt out of the system.
To help prevent an accident caused by parts in rotation, work carefully around an engine that has been started.
11. Start the engine and operate it for a minimum of five minutes to get the governor and engine up to normal operating temperatures.12. Check the leak down rate of the fuel ratio control (with the engine operating at low idle) as follows:a. Connect a pressure gauge, a shutoff valve, a pressure regulator and an air supply to fitting (12).b. Apply 70 kPa (10 psi) air pressure to the fuel ratio control.c. Turn the shutoff valve "OFF" and check the leak down rate. Leakage of 20 kPa (3 psi) in 30 seconds is acceptable.d. If leakage is more than 20 kPa (3 psi) in 30 seconds, the fuel ratio control must be replaced before continuing to the next step.e. Keep 70 kPa (10 psi) air pressure on the fuel ratio control for Step 13.13. From low idle, rapidly move the governor control shaft to the full FUEL ON position and note the reading on the indicator. If using the dial indicator, read the indicator carefully because this reading will be a maximum for only a moment. The electronic indicator will hold and display the maximum reading. Make a record of