GAMMA PROGRESSION ST (Issue 2 / Version E - Oct. 28, 1997) - Manual (Page 12)

11
MAINTENANCE
Adjusting the String Clamps
The clamps provided with your stringing ma-
chine will need minor adjustments according
to what string type, construction, and gauge
you are using.
To adjust, route the string through the racquet
as if you were beginning the main strings.
Clamp the strings and pull tension. If the
string slips through the jaws of the clamp,
tighten the clamp by turning the flat head
screw clockwise with the 4 mm hex wrench
located on the side of the string clamp oppo-
site of the handle. If the clamp leaves impres-
sions or damages the string, it is too tight and must be adjusted by turning the hex screw
counterclockwise.
The clamp jaws must be clean and free from dirt, oil, and any string coating for them to grip
properly. The diamond dust coated clamping surfaces should be cleaned periodically by
removing the flat head screw to completely expose the clamping surfaces. Clean the clamping
surfaces with alcohol and a nylon brush until all surfaces are clean. Replace the screw and
spring to re-assemble the clamps.
Note: The string clamps supplied with your Gamma stringing machine can accomodate tight
string patterns such as badminton. Depending on the string pattern, the clamp may spread the
strings slightly which will not compromise the quality of the string job.
Turntable Bushing Adjustment
The Progression ST is adjusted at the factory
for optimum performance. After time and
use, the turntable bushings may need minor
adjustment. An adjustment is indicated when
noticeable turntable looseness or wobble
occurs while stringing.
To adjust the fit between the turntable pin and
the bushings, tighten the set screws located
on the back side of the tensioner bar post
using a 3mm hex wrench. Tighten until the
turntable rotates smoothly without excessive
free play.