Snap-On ControlTech Micro Calibration Procedure page 9

1. Tighten clutch pressure wheel to 10% of torque wrench rated capacity.
2. From the main screen, press and hold the ENTER key for three seconds. The User
choices menu will be displayed.
3. Scroll to the CONFIGURE menu selection by pressing the Up key two times:
CONFIGURE
EXIT
SET HEAD LENGTH
4. Press the Enter key to display the Configure menu:
EXIT
MODE SETUP
PRESET LOCK
5. Scroll to the CALIBRATION menu selection using the Up/Down keys:
PRESET LOCK
JOB MODE
CALIBRATION
6. Press the Enter key to display the Password Entry screen:
ENTER PASSWD
9 1 7 4
7. Enter the password: 91748 by pressing the Up or Down keys to
increment/decrement the highlighted digit, followed by the Enter key after each digit
is set.
8. Following the entry of the last password digit, the Calibration menu will be
displayed:
EXIT
CAL TORQUE
CAL ANGLE
9. Use the Down key to highlight the CHECK ANGLE menu selection:
CAL ANGLE
CHECK TORQUE
CHECK ANGLE
10. Press the Enter key to display the CAL CHECK screen:
CAL CHECK
180°
11. Rotate the wrench 45 degrees in the clockwise direction and while maintaining
torque on the wrench, verify the wrench reads within 42.5° to 47.5°.
12. Rotate the wrench another 45 degrees in the clockwise direction (90° total) and
while maintaining torque on the wrench, verify the wrench reads within 87.1° to
92.9°.
13. Rotate the wrench another 45 degrees in the clockwise direction (135° total) and
while maintaining torque on the wrench, verify the wrench reads within 131.6° to
138.3°.
14. Rotate the wrench another 45 degrees in the clockwise direction (180° total) and
verify the wrench reads within 176.2° to 138.3°.
15. Release the torque on the wrench.
16. Rotate the wrench 45 degrees in the counter-clockwise direction and while
maintaining torque on the wrench, verify the wrench reads within -42.5° to -47.5°.
8
ControlTech
7
TM
Micro Wrench