Gamma 9900 Els Owner's Manual - Machine Functions
16
MACHINE FUNCTIONS
Pre-stretch Function
The Pre-stretch function is used to pre-
stretch strings by increasing the applied
tension by a set percentage over the tension
setting before releasing the string and re-
pulling to the desired tension. This function
helps to reduce the amount of tension loss
in the strings over time.
Pressing the PRE-STRETCH button will
toggle the Pre-stretch function on and off and display the Pre-stretch Icon and Pre-Stretch
Setting. When the Pre-Stretch function is enabled, a small Pre-stretch Icon will appear on the
Stringing Screen below the Tens digit of the tension setting. When the Pre-stretch function
is disabled, or when the pre-stretch setting is 0%, the Pre-stretch Icon will not be visible on
the Stringing Screen.
Setting the Pre-Stretch from the
Stringing Screen
To change the Pre-stretch Setting while in the
Stringing Screen, press the PRE-STRETCH
button once and while the Pre-Stretch Icon
is visible on the display, press and hold the
PRE-STRETCH button again until the Pre-
stretch Setting is highlighted. Press any of
the F2, F3 or F4 keys to increase the Pre-stretch Setting in 1% increments and any of the
F6, F7 or F8 keys to decrease the Pre-stretch Setting in 1% increments. When the desired
Pre-stretch Setting is displayed, press ENTER to save the Pre-stretch Setting for the active
Memory Setting.
NOTE: Selectable Pre-stretch Settings range from 0% to 30% in 1% increments.
Setting the Pre-stretch from the
Settings Screen
To change the Pre-stretch Setting from the
Settings Screen, press F1 to display the
Settings Screen. After the Settings Screen
appears on the display, press the PRE-
STRETCH button to highlight the Pre-stretch
Setting above the Pre-stretch Icon. Press any
of the F2, F3 or F4 keys to increase the Pre-stretch Setting in 1% increments and any of the
F6, F7 or F8 keys to decrease the Pre-stretch Setting in 1% increments. When the desired
Pre-stretch Setting is displayed, press ENTER to accept and save the Pre-stretch Setting for
the active Memory Setting. If no other buttons are pressed within 10 seconds the display will
return to the Stringing Screen. Pressing the ESC or RETURN button will immediately return
to the Stringing Screen.