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.

10
FIXEDCLAMPOPERATION
Fixed Clamp Operation
The fixed clamps for the GAMMA 600 are of
adualactiondesign.Thestringclampandthe
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
pressure to secure the string when sub-
jected 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.
Rotate the winged lock knob clockwise to
secure the clamp base to the turntable.
Reverse the clamping procedure to unlock
the string clamp.
The winged lock knob should be tightened
enough to prevent clamp base slippage on
the turntable, when the desired tension is
placed on the string. To go from the loose
position to the clamped position and back,
generally requires about 1/2 to 3/4 quarters
of a turn. Although when stringing at ex-
tremely high tensions, additional tightness
may be required. Note: If the string slips
in the string clamp while tensioning, adjust the gap between the clamp jaws as
per the instructions on page 11.

11
MAINTENANCE
Your GAMMA 600 stringing machine is adjusted for optimum performance at the factory and
needs no further adjustments before use. After extensive use however, the machine may
need minor adjusments as follows :
Adjusting the Turntable Bushings
There are two adjustment points on the
machine base. One is located beneath the
polystyrene base cover while the other is
accessed from below the machine.
Usingthesupplied3mmhexwrench,tighten
both set screws slightly until the turntable
rotates smoothly without excessive free
play.
Repeat procedure until final adjustment is
reached.
Adjusting the Clamps
The clamps provided with your stringing
machine will need minor adjustments ac-
cording to what string type, construction,
and gauge you are using.
Toadjust,routethestringthroughtheracquet
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 thumb knob
(floating clamp) or hex screw (fixed clamp)
opposite of the handle, in the clockwise
direction. If the clamp leaves impressions or
damagesthestring, itistoo tightandmust beadjustedby turningthethumb knoborhex screw
counterclockwise.
The clamp jaws must be clean and free from dirt, oil, and any string coating for them to grip
properly. Clean the clamp jaws with alcohol.
Note:ThestringclampssuppliedwithyourGammastringingmachinecanaccomodate
tight string patterns such as badminton. Depending on the string pattern, the clamp
will spread the strings slightly which will not compromise the quality of the string
job.

12
PARTSLIST
PART #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
39A
DESCRIPTION
ALUMINUM BASE
BASE COVER
TRAY PAD
TURNTABLE BUSHING
RUBBER FEET
CAP SCREW
FOOT NUT
BUSHING SET SCREW
WASHER
WINDER STAND
TURNTABLE
TURNTABLE PIN
POST LOCK LEVER
WASHER
SUPPORT POST
CAP SCREW
FRAME SUPPORT SLIDE
BADMINTONADAPTER
TENNIS ADAPTER
KNOB
TENSION BAR
TENSION BAR CAP
DROP WEIGHT KNOB
FRONT WEIGHT
REAR WEIGHT
TENSION BAR DRUM
STRING GRIPPER DRUM
UPPER GRIPPER JAW
LOWER GRIPPER JAW
RATCHET TEETH
RATCHET TEETH SPRING
GRIPPER JAW SPRING
CAP SCREW
TENSION BAR ROLL PIN
GRIPPER PIVOT PIN
SNAP RING
PART #
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
57A
58
59
60
61
62
66
67
67A
68
69
70
71
72
73
74
DESCRIPTION
CAP SCREW
NYLON WASHER
FLOATING CLAMP ASSEMBLY
LEVER JAW
INNER JAW
KNOB JAW
LEVER
KNOB
SWING BOLT
RETURN SPRING
PIVOT PIN
RETAINING RING
CLAMP HEAD ASSEMBLY
CLAMP BASE ASSEMBLY
CLAMP BASE
GUIDE BUSHING
GUIDE BUSHING NUT
LOAD BUSHING
RADIAL BEARING
WINGED KNOB
FIXED JAW
LOOSE JAW
PIVOT BLOCK
LEVER
RETURN SPRING
HEX SCREW - FLAT HEAD
PIVOT BLOCK NUT
O-RING
HEX WRENCH / 3MM
HEX WRENCH / 4MM
HEX WRENCH / 5MM
HEX WRENCH / 6MM
PATHFINDER AWL
STRINGERS AWL

13
EXPLODEDPARTSVIEW

14
MOUNTINGSTANDPARTS
143
140
141
145
144
PART#
9
13
14
15
21
22
23
24
140
DESCRIPTION
WASHER-M8
POSTLOCKINGLEVER
WASHER-M10
SUPPORTPOST
FRAMESUPPORTSLIDE
BADMINTONADAPTER
TENNISADAPTER
SUPPORTSLIDEKNOB
MTNG.STANDTOPPLATE
PART#
141
142
143
144
145
146
147
148
DESCRIPTION
MTNG.STANDPAD
SUPPORTARM-LEFT
SUPPORTARM-RIGHT
SHOULDERSUPP.LOCKKNOB
SUPP.ARMRETURNSPRING
ARMADJUSTMENTKNOB
ARMADJUSTMENTSCREW
SHOULDERV-CLAMP
14
13 147
146
142
24
9
122
22
23
21
148
15