Gamma ST II Owner'S Manual Download Page 8

7

Clamp Head Operation

    Clamps are of a dual action design where

as the clamp head and  clamp base operate indepen-
dently of one another.

To clamp a string, lift the clamp head and place the string
between the jaws and depress the clamp head lever to
secure the string. The clamping pressure applied to the
string should be adjusted to provide sufficient pressure
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.

Note: 

If the string slips in the string clamp while tensioning,

adjust the gap between the clamp jaws per the instruc-
tions on page 13.

STRINGING THE FRAME

Travel Stop

Setting Tension

The Progression STII utilizes a rotary adjusting 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 tension by
1 or 2 lbs turn the knob counterclockwise 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

The tensioner bar is equipped with a tensioner travel
stop to limit travel of the tensioner along the bar and
prevent contact between the tensioner and the racquet
mounting system while stringing. The travel stop is
located about midpoint along the tensioner bar below the
gear track.
To disengage the stop, pull and hold the knob, rotate 90
degrees and release. To engage the stop, repeat the
above procedure until the travel stop pin protrudes
beyond the opposite surface of the tensioner bar.

Summary of Contents for ST II

Page 1: ... All Rights Reserved O O O O OWNER S MANU WNER S MANU WNER S MANU WNER S MANU WNER S MANUAL AL AL AL AL Issue 2 December 14 2000 Issue 2 December 14 2000 Issue 2 December 14 2000 Issue 2 December 14 2000 Issue 2 December 14 2000 ...

Page 2: ...result of normal use GAMMA s obligation under this warranty is limited to repair or replacement of defective EQUIPMENT and no one is authorized to promise any other liability GAMMA shall in no event be liable for any incidental or consequential damages To return defective EQUIPMENT a return authorization RA must be obtained from a GAMMA customer service representative The RA must be marked on the ...

Page 3: ...ll Racquets Without Adapters Parallel Jaw String Gripper w Diamond Dust Coated Gripping Surfaces Professional Diamond Dust Coated Fixed String Clamps Durable Polystyrene Base Cover w Convenient Padded Tool Tray Strong Light Weight Powder Coated Molded Aluminum Construction ...

Page 4: ...stall the M10 screws in place of the lever lock bolts and tighten with the wrench provided Turntable Installation Insert the center post of the turntable into the bushing of the stringing machine base Note When purchased with the optional floor stand it is most convenient to attach the base to the floor stand at this point See instructions provided with the optional floor stand Clamp Head Installa...

Page 5: ... into the end of the tensioner bar Note The tensioner bar is equipped with a tensioner travel stop to limit travel of the tensioner along the bar See page 7 for more details about this feature Locking the Turntable The turntable may be locked in any position The turntable winged lock knob is packed separately in the accessory polybag Install the lock knob into the threaded hole located on the side...

Page 6: ...ost using the same procedure Caution To avoid racquet damage the center posts should not contact the racquet prior to fixing the support posts Tightening the Center Supports Tighten the Frame Support Slides by turning the adjust ment knob clockwise until slight resistance is felt Caution Overtightening may cause racquet damage Frame Shoulder Support Adjustment Being sure the shoulder supports are ...

Page 7: ... post Re tighten all of the frame supports in the same order as before Do not overtighten any of the supports as racquet damage may occur The supports should be tightened to the point where the racquet frame will not move in the mounting system when the handle is grasped and attempts are made to move it Should any supports lose contact with the frame while stringing they should be re tightened ...

Page 8: ...vided 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 tension by 1 or 2 lbs turn the knob counterclo...

Page 9: ...wo center holes at the appro priate end of the frame and continue through the oppo site center holes Thread one end of the string through the adjacent grommet hole and pull excess by hand Secure one of the strings using a string clamp Clamp Base Operation Rotate the Base Locking Lever clockwise to secure the clamp base to the turntable Reverse the clamping procedure to unlock the string clamp The ...

Page 10: ...der the main strings being careful to alternate the weave direction of each consecutive cross string so as to be opposite of the previously installed cross string Once the final cross string is tensioned and clamped tie off at the appropriate hole specified by the racquet manufacturer ...

Page 11: ...ole in the same manner as for traditional awls The Pathfinder awl must be in the closed position before insertion Once the awl is inserted pull the handle of the awl outward while holding the tip section in place leaving the outer sheath in the grommet hole Insert the end of the string into the center of the sheath While holding pressure on the string slowly pull the sheath out of the grommet hole...

Page 12: ... block as shown The set screw is used to hold the adjustment screw in place Step 3 If the lever releases before 60 lbs using the supplied L shaped hex wrench turn the adjustment screw C located on the left side of the latch block counter clockwise to increase the engagement of the brake release latch with the brake lever Repeat step 1 and adjust until the correct tension is indicated on the calibr...

Page 13: ...h insert the 6 mm hex wrench through the hole in the tensioner cover and into the B brake lever adjusting bolt B Brake Lever Adjustment Bolt Adjusting the Tensioner Brake Step 3 To tighten the braking mechanism turn the brake lever adjusting bolt counter clockwise by about 1 8 turn Retighten the lock bolt on the back side of the tensioner frame and check for brake tightness The tensioner should mo...

Page 14: ...ing 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 Clamp Base Locking Nut Adjustment In the event the Locking Lever rotation is insufficient to ensure smooth operation of the clamp base very minor adjustments to the Clamp Base Locking Nut can be made wit...

Page 15: ...oved Clean the jaws with isopropyl alcohol and re assemble String Clamp Base Clean the base of the clamps and the top of the turntable with isopropyl alcohol String Gripper Clean inner gripping surfaces with isopropyl acohol soaked cloth or pipe cleaner CARE and CLEANING For additional assistance contact Customer Service PROBLEM SOLUTION String clamp base slips on turntable Adjust Clamp Base Locki...

Page 16: ...15 EXPLODED PARTS VIEW ...

Page 17: ...DS RED MTNG STAND TOP PLATE MTNG STAND PAD SUPPORT ARM LEFT SUPPORT ARM RIGHT SUPPORT LOCK KNOB PART 145 146A 147 148 172 174 180 189 190 191 192 70 72 73 98 108 109 167 170 196 DESCRIPTION ARM RETURN SPRING ARM ADJUSTMENT KNOB ARM ADJUSTMENT SCREW SHOULDER V CLAMP 2020 25 TURNTABLE QA CLAMP w GLIDE BAR COMP FIXED CLAMP THIN PII LOWER TRAY PAD PII UPPER TRAY PAD PII ST ALUMINUM BASE PII ST PS BASE...

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