HOSE AS 7T9100 - Caterpillar

Operation Description:PTO Shutdown TimerA programmable parameter for the PTO shutdown timer is provided. This timer will shut down the engine when all of the following conditions are met:
The PTO shutdown timer has expired.
The "PTO Shutdown Time" parameter is programmed to at least three minutes.
The PTO On/Off switch is on and the ECM is in the dedicated PTO mode.
The engine is not in the cold mode.During the last 90 seconds of the PTO shutdown timer, the check engine lamp will begin flashing. If the vehicle is equipped with a PTO switch on lamp, the PTO switch on lamp will begin flashing during the last 90 seconds.If the PTO shutdown timer is activated and the timer stops the engine, the following event code will be generated.
71-14 PTO ShutdownNote: Fuel rates are not monitored while the PTO shutdown timer is active. Shutdown will occur regardless of load. Unlike the idle shutdown timer, the PTO shutdown timer cannot be overridden by using the clutch pedal or the brake pedal.An additional parameter can be programmed to allow the timer to be reset above a specified engine speed. When the parameter for the "PTO Shutdown Timer Maximum RPM" is programmed to a value below the Top Engine Limit, the timer can be reset by increasing engine rpm above the programmed limit. The timer will stay reset until engine rpm drops below the programmed value. At this point, the timer will begin to count again. The factory default setting of 2120 rpm (Top Engine Limit) disables this feature.Test Step 1. Verify Activation of the PTO Shutdown Timer
Connect the electronic service tool to the data link connector.
Access the configuration screen on the electronic service tool. Access the following display screens in order:
"Service"
"Configuration"
Record the programmed PTO shutdown time. The PTO shutdown time must be between 3 and 1440 minutes. If the PTO shutdown time is programmed to 0, the timer is disabled.
Start the engine. Allow the engine to warm up until the coolant temperature is 38 °C (100 °F). Allow the engine to operate at the programmed low idle and turn off any unnecessary accessory devices.
Ensure that all unnecessary loads are turned off.
Use the following procedure in order to check the operation of the PTO shutdown:
Park the vehicle.
Ensure that the "PTO Configuration" is programmed to "Cab Switches", "Remote Switches" or "Remote Throttle".
Ensure that the status for the "PTO On/Off Switch" is "ON".
Observe the status of the "PTO Shutdown Status".Note: The "PTO Shutdown Timer Maximum RPM" can be programmed in order to allow the timer to be reset by increasing engine RPM above the programmed limit. Ensure that the accelerator is not being depressed in order to increase rpm beyond the programmed limit.Expected Result:Result 1 The status for the "PTO Shutdown Status" indicates "COUNTING".Result 2 The ECM is not reading the proper conditions for activation of the timer.Results:
Result 1 - The ECM is reading the proper conditions for the activation of the PTO shutdown timer. Proceed to Test Step 2.
Result 2 - Proceed to Test Step 3.Test Step