The engagement and monitor unit can be used to display vital operating information, hours, diagnostic trouble codes, diagnostics, and to configure units of measure. It can also be used to lock the machine using an anti-theft security system. When the engagement and monitor unit powers up, the display initially shows the machine model setting for 3 seconds, and then will show the hour meter for 10 seconds before it defaults to Run Data Items. If the anti-theft system is enabled on the machine, the lock status appears after the machine model setting has been shown. See Anti-Theft Security System in this section for more information. The "MENU" button is used to scroll through the menus or to return to the Run Data Items when in a sub-menu. The "SELECT" button is used to scroll through the Run Data Items or to select a menu item.

Run Data Items

The Run Data Items are the default display when the engagement and monitor unit is powered up. The Run Data Items may also be displayed by cycling through the menu items by pressing the "MENU" button, or by pressing "MENU" at any time while in a sub-menu. Pressing "SELECT" while viewing a Run Data Item will scroll through all the Run Data Items.

• Hours
• Engine rpm
• Volts
• Hydraulic Temperature
• Engine Temperature

If "CHECK CODES" appears in the engagement and monitor unit display, press "SELECT" to return to the Run Data Items. "CHECK CODES" will appear for any hydraulic, park brake, or auto shutdown diagnostic trouble codes. Once "CHECK CODES" appears in the display, it will become part of the list of Run Data Items. Once the diagnostic trouble code is cleared, the "CHECK CODES" will no longer be part of the Run

Job Menu

The Job Menu is a hour meter that can be reset. To reset the Job hour meter, press and hold the "Select" button for 5 seconds.

Code Menu

The Code Menu displays any diagnostic trouble codes that may be present in the machine. The Code Menu displays both machine and engine diagnostic trouble codes. For more information, see Reading Engagement and Monitor Unit Diagnostic Trouble Codes.

Diagnostic Menu

The Diag Menu displays diagnostic information from various switches on the machine.

Configuration Menu

The Confg Menu is used to change how the information in the engagement and monitor unit is displayed. Press "Select" to scroll through the available features to configure. To change the configuration of a feature, press and hold the "Select" button for 5 seconds.

Machine Model Setting

The engagement and monitor unit uses a machine model setting to set fuel gauge calibration and two speed shift modulation for specific machine models. The machine model number displays for 3 seconds when the engagement and monitor powers on.

KH31969,0000001 -19-21DEC07-1/2

The optionally-enabled anti-theft security system within the engagement and monitor unit provides a basic level of machine theft protection. When the anti-theft security system is enabled, the machine can be unlocked and locked with the use of either a 3-digit or 5-digit security code (depending on how the system is configured.) This security code, along with the machine key switch, is necessary to start and run the engine. When locked, the anti-theft security system prevents the engine from starting by disabling the fuel shutoff solenoid (Y1).

There are three levels of security within the anti-theft security system: Operator, Owner, and Master. The Operator level of security provides three different security codes that can be used by machine operators. The Owner level of security is designed for the owner or equipment manager. This security level is primarily to be used as a safeguard in the event an Operator code is forgotten or unknown, and the owner wishes to change or replace that security code.

After entering a valid Owner security code, the owner can:

• Lock and unlock the machine.

• Change the Owner security code.
• Change/reset an Operator security code.
• Enable/disable the auto lock feature.

The Master level of security is the highest security level and is used to enable or disable the anti-theft security system. A Master security code can be obtained for a machine by an owner by contacting their John Deere Dealer. The dealer will need the current engine hour meter reading and the machine's serial number to generate a new Master security code.

All security codes are three digit numbers that are entered using the "MENU" and "SELECT" buttons on the engagement and monitor unit. Unlock or lock prompts appear on the engagement and monitor unit display at machine power up or power down, respectively. If the anti-theft security system is not enabled on the machine, no prompts will appear.

Auto Lock Feature

The auto lock feature, when enabled, automatically locks the machine 1 hour after the operator leaves the seat if the machine had been left unlocked when turning key switch to OFF position.

KH31969,0000001 -19-21DEC07-2/2