Gamma+ Progression 600 User manual

600 / 600FC
OWNER'SMANUAL
Issue 2 / Version E - Dec. 10, 1997
PROGRESSION
Copyright1997GAMMASports- All RightsReserved
Provided by www.gssalliance.com

1
TABLEOFCONTENTS
PAGE1 ................................................................................................ WARRANTY
PAGE2 ...................................................................................................FEATURES
PAGE3 ....................................................................... ASSEMBLYINSTRUCTIONS
PAGE4 .............................................................................. MOUNTINGTHEFRAME
PAGE5 .............................................................................. STRINGINGTHEFRAME
PAGE8 ...................................................................................... PATHFINDERAWL
PAGE9 ............................................................................ FIXEDCLAMPUPGRADE
PAGE10 ....................................................................... FIXEDCLAMPOPERATION
PAGE11 .......................................................................................... MAINTENANCE
PAGE12 ............................................................................................... PARTSLIST
PAGE13 .......................................................................... EXPLODEDPARTSVIEW
PAGE14 ....................................................................... MOUNTINGSTANDPARTS
OWNER'SMANUAL
PROGRESSION600/600FC
LIMITED WARRANTY
GAMMASPORTS("GAMMA")warrantstotheoriginalpurchaserthattheGAMMAPROGRESSIONstringingmachine("EQUIP-
MENT")purchasedisfreefromdefectsinmaterialsandworkmanshipforaperiodoffive(5)yearsfromthedateoforiginalpurchase
formechanicalparts(excludingelectricalpartsandstringclamps),andforaperiodofone(1)yearfromthedateofpurchaseforall
electricalpartsandstringclamps.Shouldanydefectsdevelopundernormalusewithinthespecifiedtimeperiods,GAMMAwillat
itsoption,repairorreplacethedefectiveEQUIPMENTprovideditisreturnedtoGAMMAprepaidatthepurchaser'sexpense.This
warrantydoesnotapplytoanydamageordefectcausedbynegligence,abuse,misuse,unauthorizedalteration,shipping,handling,
orpartwearandtearasaresultofnormaluse.
GAMMA'sobligationunderthiswarrantyislimitedtorepairorreplacementofdefectiveEQUIPMENT,andnooneisauthorizedto
promiseanyotherliability.GAMMAshallinnoeventbeliableforanyincidentalorconsequentialdamages.
ToreturndefectiveEQUIPMENT,areturnauthorization(RA#)mustbeobtainedfromaGAMMAcustomerservicerepresentative
bycalling1-800-333-0337.TheRA#mustbemarkedontheoutsideoftheshippingcartonbeingreturned.Allreturnsmustbeshipped
prepaidbythecustomertoGAMMA.Pleaseretaintheoriginalshippingcartonandpackingmaterialsforanyfutureshipments.
GAMMAwillnotberesponsibleformachineswhicharenotsentintheoriginalundamagedpackaging.

2
FEATURES
Drop Weight Tensioner w/ 8lb. to 90lb. range and Permanently
Engraved Weight Scale
Professional Six Point Mounting System w/ L-Shaped Frame Shoulder
Clamps - Accomodates All Racquets Without Adapters
Patented Parallel Jaw Rotating Ratchet Gripper w/ Diamond Dust
Coated Gripping Surfaces - U.S. Patent #4,491,322
Two Composite Floating Clamps w/ Thumb Screw Adjustment
Durable Polystyrene Base Cover w/ Convenient Padded Tool Tray
Strong, Light Weight, Powder Coated Molded Aluminum Construction
Upgradeable to Progression 600FC w/ Professional Dual Action Fixed
StringClamps

3
ASSEMBLYINSTRUCTIONS
Installing the Turntable
The turntable is located under the foam
packinginthebottomoftheshippingcarton.
Insert the center post of the turntable into
the bushing of the stringing machine base.
Engaging the Drop Weight Bar Stop
The stringing machine is shipped with the
dropweightbarinthehorizontalposition. To
prevent racquet damage during stringing,
the bar stop must be engaged.
Removethemachinebasefromtheshipping
carton being careful to avoid lifting by the
plastic cover.
Hold the drop weight bar in the vertical
position as shown while turning the stop
screw clockwise with the supplied 5mm hex
wrench.
Installing the Frame Support Posts
The GAMMA 600 support post assemblies
are precision aligned at the factory and are
marked for proper installation on the turn-
table.
Install the support post with the dot on its
basetoanidenticaldotontheturntable.Align
the threaded hole in the bottom of the frame
support post with the slot in the turntable.
Screw the lever lock bolt with washer into
the bottom of the support post and tighten
gently.Position the washer the rounded side
toward the turntable.
Repeat procedure on the opposite side of
the turntable

4
MOUNTINGTHEFRAME
Adjusting the Frame Support Posts
Place the racquet frame over the center
posts and onto the frame support. Loosen
thelever lock bolt on one support post. Slide
the post outward until the center support of
the racquet support slide is positioned near
the inside surface of the racquet frame.
Securely tighten the lever lock bolt.
Adjust the opposite post using the same
procedure.
Caution: To avoid racquet damage, the cen-
terpostsshouldnotcontacttheracquetprior
to fixing the support posts.
Adjusting the Frame Shoulder Sup-
ports
Being sure the shoulder supports are free to
swivel in thier mountings, simultaneously
rotatetheshouldersupportadjustmentknobs
clockwise until both shoulder supports gen-
tly and squarely contact the frame.
TightentheFrameSupportSlidesatthehead
and throat of the racquet until they gently
contact the frame between the two center
main string grommets.
Securing the Frame
Lock the shoulder supports in position by
turning the knob at the base clockwise.
Repeat the adjustment procedure for the
remaining support 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.
Thesupportsshouldbetightenedtothepoint
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.

5
STRINGINGTHEFRAME
The drop weight is of a two piece design.
When assembled, it will accomodate ten-
sionsfrom20lbs.to90lbs.Fortensionsfrom
8to20lbs.,removethe5mmboltontheface
of the drop weight, and use the smaller
portion of the weight as described above.
Note: Tensions above 77lbs. require re-
moval of the drop weight bar endcap.
Setting Tension
To set the stringing tension, loosen the
locking knob on the side of the drop weight.
Slide the weight in the appropriate direction
until the face closest to the string gripper is
indexedwiththedesiredtensionmarkonthe
tension bar.
Clamping the First Main String
To begin stringing the main strings, thread
the two ends of the string through the two
center holes at the appropriate end of the
frame and continue through the opposite
center holes. Thread one end of the string
through the adjacent grommet hole and pull
excess by hand. Using a floating clamp,
secure the center and the adjacent string to
each other on the inside of the frame.

6
STRINGINGTHEFRAME
Gripping the String
While holding the tension bar slightly above
horizontal, wrap the free string clockwise
around the gripper drum once and position
between the gripper jaw.
Gently turn the gripper clockwise while
squeezing the jaws together until all slack in
the string is removed.
Note: For proper operation, the string grip-
per jaw must be in the position shown. The
tension in the string provides the clamping
force to the jaws.
Pulling Tension
While securely holding the string gripper
drum with your hand, lift the tension bar
above horizontal and gently lower the bar
under its own weight. If the tension bar
drops below horizontal, repeat the above
action until the bar comes to rest parallel to
the racquet.
When the correct tension is attained, the
drop weight bar will rest horizontally as
shown. For accurate tensioning, it must be
lowered and come to rest at horizontal
without assistance. Manually forcing the
tension bar to the horizontal position will
greatly increase the string tension and may
result in racquet damage.
If the tension bar comes to rest above
horizontal,releasethestringbyliftingthebar
and re-pull the string.

7
STRINGINGTHEFRAME
Clamping the String
Clamp the tensioned string to the next adja-
cent string using the second string clamp.
Releasethestringfromthegripperbyraising
the tension arm.
Repeattheprocedureforalloftheremaining
main strings and tie off following the racquet
manufacturers recommendations.
Starting the Cross Strings
Follow the manufacturer's recommended
stringing pattern for one or two piece string-
ing. This will determine the starting point for
the cross strings. If applicable, tie the first
cross string using an appropriate starting
knot.
Weave the cross strings over and under the
main strings being careful to alternate the
weave 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,tieoffattheappropriateholespeci-
fied by the racquet manufacturer.

8
PATHFINDERAWL
TheGamma600includesthenewPathfinder
stringing awl which creates a pathway
between or around strings to make inserting
a string through tight gromets easier and
quicker.
Inserttheawlthroughthegrommetholeinthe
same manner as for traditional awls. The
Pathfinderawlmustbeintheclosedposition
before insertion.
Once the awl is inserted, pull the handle of
theawl outward whileholding the tipsection
in place, leaving the outer sheath in the
grommethole.
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 to
leave the end of the string exposed.

9
FIXEDCLAMPUPGRADE
Fixed Clamp Installation
Toinstalltheclamps,removethewingedlock
knob to separate the knob from the lower
guide bushing. Be careful not to lose the
radial thrust bearing components located in
the center recess of the knob.
Align the clamp base with the clamp slot of
the turntable base. Insert the clamp guide
bushingintotheclampfromthebottomofthe
turntable making sure to engage the guide
with the clamp slot.
Fixed Clamp Installation - (cont.)
Place the load bushing into the top of the
clamp base mating it to the lower guide
bushing. After checking that the thrust bear-
ing is positioned correctly in the base of the
winged lock knob, screw the knob into the
base bushing until fully seated.
The post of the string clamp head and tube
of the string clamp base are treated with
grease to provide protection against corro-
sion during shipping. Remove any exces-
sive 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.