Tensioner Calibration
If the bases of the
Cam-Lock
clamps slip on the glide bars, the base
locking levers may need adjustment.
Remove the plastic cap by pulling straight up on the edges of the cap.
Line up the large hole in the clamp base with the smaller hole in the
locking cone as shown.
Each stringing machine has been checked and calibrated at the factory using accurate load sensing devices to
ensure that the machine pulls at the correct tension. The tension is then controlled by the pre-set factory settings
of the electronics. However, if you suspect that your machine is not pulling at the correct tension, or if you would
like to check the pulling tension using a tension calibration device, you may do so.
Most tension calibrators (such as a Gamma Tension Calibrator) function by inserting a string from the end of the
calibrator into a string clamp, and pulling on the string located on the opposite end of the calibrator. The tension
measured by the calibration device will then display the tension being applied to the calibrator by the machine.
With the machine set for the fast pulling speed, and the tension set at 20 lbs., place the string from one end of the
calibrator (preferrably equipped with synthetic string) into a string clamp. Place the opposite end into the string
gripper and apply tension. If the tension indicated on the calibrator does not match the tension setting, release the
string and remove it from the gripper.
Press and hold the “Test” button on the control panel for 5 seconds and release it when the tension display
starts its countdown and the machine performs its own self diagnostic test. After the display returns to
the preset value, recheck the pulling tension using the tension calibrator at both 20 and 60 lbs.
In the event that the measurement from the calibrator does not match the tension setting, the machine
can be externally calibrated by up to +/- 5 lbs from the factory settings. If the difference between the measurement
from the calibrator and the tension setting is more than 5 lbs. call the machine service department of GAMMA Sports
at 1-800-333-0337 for assistance.
To calibrate the machine externally, set the machine for a pulling tension of 40 lbs. With the
calibrator attached, press and hold the “TEST” button until a flashing “9” appears on the display.
Press the “+0.1” or “-0.1” buttons, to match the display value to the calibrator value. Press “ENT”
to save the calibration settings.
Cam-Lock Clamp Base Adjustment
Insert the 3mm hex wrench through the holes and into the screw located
in the base. Rotate the wrench clockwise to tighten the clamp and
decrease the base locking lever travel. Rotate the wrench counterclock-
wise to loosen the clamp and increase the base locking lever travel.
17
