Months ago,car-auto-repair show the guide on how to perform Caterpillar Valve Actuator Test by manually.Here show another guide on test it by automatically.
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To start the automated test:
1 Click the Start button. The Select Intake Valve Actuator Test screen displays.
2 Click the Automatic Intake Valve Actuator Test radio button, and then click Continue>>. The Intake Valve Actuator Test Conditions screen is displayed.
3 When the service conditions are met, click Continue>> to begin the test.
Note: The Test will not run unless all test conditions are met. If service conditions are not met, the Intake Valve Actuator Test Aborted screen is displayed, noting the reason(s) the test was stopped. Click <<Back to return to the Intake Valve Actuator Test screen.
4 If test conditions are met, a warning box displays the following message:
Running this test will cause significant engine smoke.
This test should be run in a well-ventilated area.
Click OK to continue the test, or click Stop to abort the test and return to the Intake Valve Actuator Test main screen.
5 A WARNING message box may be displayed if:
If the cooling fan is controlled by the ECM. Click OK to continue the test, or click Stop to abort the test without turning on the cooling fan.
If the engine speed is controlled by the ECM. Click OK to continue the test. The Intake Valve Actuator Test main screen will be displayed in automated test mode. Click Stop to abort the test without adjusting engine speed.
Note: Clicking Stopcauses the shutdown process to begin.
6 The test cycles two times. A progress bar displays the completion status of the test. When the test is complete, the engine speed automatically increases, and a progress bar displays the completion status of the increase. Then, as the increased engine speed is maintained for a specific amount of time, the progress bar displays the progress of the maintained increased engine speed.
7 The Test Complete message box displays post-test instructions.
WARNING: DO NOT RUN THIS TEST AGAIN UNTIL THE ENGINE HAS BEEN PLACED UNDER LOAD.
Click OK. The Intake Valve Actuator Results screen is displayed.