GAMMA PROGRESSION ST (Issue 2 / Version E - Oct. 28, 1997) - Manual (Page 8)

7
STRINGING THE FRAME
Setting Tension
The Progression ST utilizes a rotary adjust-
ing knob along with a linear tension scale to
indicate the tension setting. The scale is
divided into 3 lb increments and each 1/3 turn
of the tension knob changes tension by 1 lb.
To set the desired tension, rotate the tension
knob and align the mark on the spring guide
with the desired tension setting on the scale.
When the “0” mark on the knob aligns with the
line on the knob support the tension will be
that indicated on the scale. To increase ten-
sion by 1 or 2 lbs turn the knob counterclock-
wise until the “1” or “2” mark on the knob aligns with the line on the knob support. To decrease
tension by 1 or 2 lbs, turn the knob clockwise until the “2” or “1” mark on the knob aligns with
the line on the knob support.
Tensioner Travel Stop
To prevent contact between the tension head
and the racquet and/or turntable, a stop
screw is located about midpoint along the
tensioner bar below the gear track. In the
event the tension head must be moved closer
to the racquet, turn the stop screw counter-
clockwise with the 5 mm hex wrench until the
end of the stop screw no longer protrudes
beyond the surface of the tensioner bar. To
re-engage the stop, simply turn the stop
screw clockwise until the screw is seated
against the tensioner bar.
Travel Stop
Fixed Clamp Operation - Step 1
The fixed clamps for the Progression ST are
of a dual action design. The string clamp and
the clamp base operate independently of one
another.
To clamp a string, lift the clamp head and
place the string between the jaws. Depress
the clamp head lever to secure the string.
The clamping pressure applied to the string
should be adjusted to provide sufficient pres-
sure to secure the string when subjected to
the desired pulling tension. The diamond
coated gripper plates provide for increased
friction between the clamps and the string to allow for reduced clamping pressure while securing
and holding the string under tension.