TCM can be toggled ON or OFF by selecting TOGGLE button. When TCM is turned off, StarFire GPS message will not be corrected for vehicle dynamics or side slopes. TCM will default to ON when cycling power.

NOTE: TCM must be turned on for AutoTrac to activate.

TCM must be calibrated so receiver can determine zero degree roll angle.

JS56696,00005A3 -19-13MAY09-1/4

NOTE: Calibrate receiver when it is attached or reattached to machine. Receiver does not require recalibration until removed from machine and reattached.

IMPORTANT: When calibrating, it is important that TCM is at same angle when facing either direction. If roll angle is a positive 2 degrees when facing one direction, vehicle needs to be a negative 2 degrees when facing opposite direction. To position TCM at same angle it is important when turning vehicle around and facing other direction that tires are placed in correct location. Once vehicle is parked on a hard flat surface, note

location of tires on ground. When turning around use following instructions:

• Floating Front Axle Vehicles (MFWD, ILS, TLS)-put rear axle/wheels in same location when performing 2 point calibration. See above diagram for Floating Front Axle Vehicles.

• Fixed-Axis Wheels Or Tracks Vehicles (Track Tractors, 47X0 and 49X0 Series Sprayers, 9000, And 9020 Series Wheel Tractors)-Place all in same location when facing either direction. See above diagram for Fixed-Axis Wheels Or Tracks Vehicles.

JS56696,00005A3 -19-13MAY09-2/4

IMPORTANT: Vehicle must be on a hard, flat level surface for calibration. If TCM is not calibrated on a level surface or TCM mounting angle is not level in relation to vehicle angle (StarFire mounting bracket or vehicle cab being slightly offset, uneven tire pressures from one side to other, etc.) operator may see offset during operation. This offset could look like a consistent skip (A) or overlap (B) in pass-to-pass operation. To eliminate offset, re-calibrate on a level surface, drive down a pass, turn around and drive down same pass in opposite direction. If vehicle does not follow same pass, measure offset distance and enter in implement offset. After initial calibration of TCM, it is not necessary to calibrate again unless TCM angle in relation to vehicle has changed. For example, tire pressure has been lowered on one side of vehicle causing vehicle angle in relation to ground to change.

Calibration Procedure:

1. Press CALIBRATION button.
2. Park vehicle on a hard, level surface and come to a complete stop (cab is not rocking).
3. Press ENTER button.
4. Calibrating Status bar will appear. Once status reaches 100% it will automatically advance.
5. Turn vehicle 180 degrees to face opposite direction. Ensure that tires are in proper location for fixed or floating front axle and vehicle has come to a complete stop (cab is not rocking).
6. Press ENTER CALIBRATION button.
7. Calibrating Status bar will appear. Once status reaches 100% it will automatically advance.
8. Once finished, a calibration value will be displayed. 0 degree calibration value is the difference between factory calibration value and actual calibration value which was just determined.

A-Skip
B-Overlap

JS56696,00005A3 -19-13MAY09-3/4

9. Press ENTER button to return to SETUP tab.

JS56696,00005A3 -19-13MAY09-4/4