GAMMA X-ST User Manual
X-ST
STRINGING MACHINE
OWNER'S MANUAL
Issue 2 - October 2009
GAMMA X-ST
OWNER'S MANUAL
TABLE OF CONTENTS
PAGE 1 ................................................................................................ WARRANTY
PAGE 2 ...................................................................................................FEATURES
PAGE 3 ....................................................................... ASSEMBLY INSTRUCTIONS
PAGE 6 .............................................................................. MOUNTING THE FRAME
PAGE 7 ..............................................................................STRINGING THE FRAME
PAGE 10 ...........................................................................ADDITIONAL FEATURES
PAGE 11 .................................................................................... PATHFINDER AWL
PAGE 12 ....................................................... MAINTENANCE AND ADJUSTMENTS
PAGE 15 ........................................................................ TROUBLESHOOTING TIPS
PAGE 16 ...............................................................................................PARTS LIST
PAGE 17 ..................................................................................... PARTS DRAWING
LIMITED WARRANTY
GAMMA Sports (GAMMA) warrants to the original purchaser that the X-STRINGER stringing machine ("EQUIPMENT")
purchased is free from defects in materials and workmanship for a period of five (5) years from the date of original purchase
for mechanical parts (excluding any electrical parts and string clamps), and for a period of one (1) year from the date of
purchase for any electrical parts and string clamps. Should any defects develop under normal use within the specified time
periods, GAMMA will at its option, repair or replace the defective EQUIPMENT provided it is returned to GAMMA prepaid at
the purchaser's expense. This warranty does not apply to any damage or defect caused by negligence, abuse, misuse,
unauthorized alteration, shipping, handling, or part wear and tear as a result of normal use.
Routine maintenance, adjustment, and cleaning required to ensure proper operation are the responsibility of the purchaser
and are not covered under the terms of this warranty. These include, but are not limited to: String Clamp adjustment, as
described on page 13, tension calibration, as described on page 11, Tensioner Brake adjustment, as described on page 12,
and clamp base locking nut adjustment, as described on page 13..
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 outside of the shipping carton being returned. All returns must be shipped
prepaid by the customer to GAMMA. Please retain the original shipping carton and packing materials for any future shipments.
GAMMA will not be responsible for machines which are not sent in the original undamaged packaging.
1
FEATURES
MACHINE FEATURES
Manual Spring Tension Winder (11-89 lbs range)
Patented Roller Guide for Maximum Accuracy and Consis-
tency
Professional Six Point “Quick Mount” Racquet Mounting
System - Accomodates All Racquets Without Adapters
Parallel Jaw Gripper w/ Diamond Dust Coated Gripping
Surfaces
Professional Dual Action, Rotating, Diamond Dust Coated,
Fixed String Clamps
High Strength Extruded Aluminum Frame with Durable
Anodized Finish and Convenient Padded Tool Tray
Unique Internal Drawer System for Storing Tools and
Adaptors
2
ASSEMBLY INSTRUCTIONS
Turntable Installation
To install the turntable remove the four nuts
underneath holding the mounting bolts in
place. Position the turntable over the turntable pin and align the bolts with the holes in
the flange. Secure them with the included
allen wrench.
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.
Support Post Installation
To install the support posts you must first
remove the mounting bolt from the mounting
plate that sets inside the central cavity of the
turntable. There are large holes stamped on
the underside of the turntable that allow you
to support the mounting plate with your
fingers while removing the mounting bolt.
Remove and Discard Plastic Washers
Support Post Installation (con’t)
After removing the mounting bolt, remove
and discard the plastic washers that are
installed for shipping purposes.
3
ASSEMBLY INSTRUCTIONS
Support Post Installation (cont’d)
Place the support post onto the central slot
of the turntable. With your fingers placed
through the large hole in the underside of the
turntable, press the mounting plate against
the inside top surface of the turntable while
aligning the hole in the support post with the
hole in the mounting plate and fix them with
the mounting bolt. Repeat procedure on to
attach the support post on the opposite side
of the turntable.
String Clamp Installation
The post of the string clamp and tube of the
string clamp base are treated with grease to
provide protection against corrosion during
shipping. Remove any excessive grease
with a clean cloth prior to use. The post and
tube may also be cleaned with isopropyl
alcohol. After this type of thorough cleaning,
the post and tube should be treated with a
light coating of machine oil to protect the
surfaces against corrosion and to ensure
smooth operation.
Installing the Tensioner
Remove the button head screw and washer
located at the end of the tensioner bar with
the 3 mm hex wrench provided. Slide the
tensioner onto the bar, being careful to align
the bar with all of the bearings and the drive
gear with the gear track. Replace the screw
and washer 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.
4
ASSEMBLY INSTRUCTIONS
Setting the Gripper Jaw Spacing
The gripper jaws of the tensioner are adjustable to accomodate varying string gauges.
If the string slips through the gripper jaws
while pulling tension, rotate the gripper jaw
adjustment screw counter-clockwise.
If the string is damaged while pulling tension,
rotate the gripper jaw adjustment screw
clockwise.
The jaws will be properly adjusted when
there is enough pressure to securely grip the
string without causing damage to the string.
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
Travel S top
the stop, repeat the above procedure until
the travel stop pin protrudes beyond the
opposite surface of the tensioner bar.
Turntable Brake
The turntable may be locked in any position.
Flip the lever down to lock the turntable brake
and flip the up to release the turntable brake.
5
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