Performing a Pretrip Test

If a Pretrip Test is initiated with the engine or electric motor not running, a Full Pretrip Test will be performed. If a Pretrip Test is initiated with the engine or electric motor running, a Running Pretrip Test is performed.

• Before initiating a Pretrip Test, clear all alarm codes.

• To stop a Pretrip Test at any time, turn the unit off.

Pretrip Tests are initiated using the Pretrip Menu. From the Standard Display, press the MENU Key ( Menu Key).

The Main Menu will appear. Press the UP or DOWN Key as required to choose the Pretrip Menu. When the Pretrip Menu is shown, press the SELECT Key to start a Pretrip Test ( Select Key).

The display will briefly show PROGRAMMING PRETRIP MODE ( Programming Trip Mode). If the unit is not running, a Full Pretrip Test will be initiated. If the unit is running in either diesel or electric mode, a Running Pretrip Test will be performed.

If all alarms were not cleared, a prompt appears ( Alarms Not Cleared). Exit the Pretrip Test, clear all alarms, and repeat the Pretrip Test.

If all alarms were cleared, the Pretrip Test display appears ( Pretrip Test).

• The top line of the display indicates the unit is performing the non-running portion of the Pretrip Test.

• The second line measures test progress. The number of tests completed of the total number of tests to be performed is shown. In the example above the unit is performing Test 1 of 26, Sensor Check.

• The soft keys may be used during the Pretrip Test to select the Hourmeter, Gauge or Sensor menus.

• To stop a Pretrip Test at any time turn the unit off. This will generate Alarm Code 28 Pretrip Abort. Other alarm codes may also be generated. This is normal when the Pretrip Test is halted before completion.

When the non-running tests are complete, the unit will start automatically and continue with the Running Pretrip Test. In the example shown ( Cool Test), the unit is in the Running Pretrip and is performing Test 21 of 26, Cool Test.

When all tests are complete, the results are reported as PASS, CHECK or FAIL ( Pretrip Pass). If the results are CHECK or FAIL, the accompanying alarm codes will direct the technician to the cause of the problem.

If the Pretrip Test results are CHECK or FAIL, the problem should be diagnosed and corrected by a Thermo King service technician before the unit is released for service.

To return to the Main Menu, press the EXIT Key. To return to the Standard display press the EXIT Key again.

See Performing a Pretrip Test () for an overview of the procedure.