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Power on the machine with your Haas Control Key.

Go to DIAGNOSTIC>FACTORY tab.

Press E-STOP.

Set parameters 11.078 and 11.140 to zero.

Release E-STOP and press [RESET].

Press [ZERO RETURN] and ALL.

Press [RECOVER], and [Y] to continue.

Press [M] for manual recovery mode [1]. 

Press ▼ to advance the TC arm until it first reads home. 

Note: The home position should be reached within 0 to 15 degrees. Jogging the arm too far can crash into the spindle head if the Z-axis isn't homed.

 Important: Verify that the pocket is in the up position before exiting recovery.

Press [E] to exit recovery.

Enter the DIAGNOSTICS>FACTORY tab.

Type [TA] and press [F4] and then [Y] for yes.

A value for parameter 11.140 should populate. 

Press [ZERO RETURN] and [ALL]. 

Press [RECOVER] and [Y] for yes.

Enter [M] manual mode again.

Note that the arm will read off position again. 

Press ▼ until the double arm reads home [1].

Take note of the first arm position to read home.

• I.e. 5.000 in [1].

Press ▼ until the double arm reads off position [2] then press ▲ once.

Take note of the last arm position to read home.

• I.e. 13.000 in [3].

Add the two arm positions and divide by 2 to find the center.

• Example:

5.000 + 13.000 = 18.000

18.000 ÷ 2 = 9.000

Multiple by -1.

• Example:

9.000 x -1 = -9.000

 Important: Verify that the pocket is in the up position before exiting recovery.

Leave the arm at a position reading home. Press [E] to exit.

Go to the DIAGNOSTICS>FACTORY tab.

Press E-STOP.

Enter the value calculated in the previous step to parameter 11.078. 

• I.e. -9.000

Release E-STOP and press [RESET].

Press [ZERO RETURN] and [ALL].