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5003
STRINGING MACHINE
6 POINT MOUNTING
OWNER'S MANUAL
Issue 6 - March 2007
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OWNER’S MANUAL
TABLE OF CONTENTS
PAGE 1 ................................................................................................ WARRANTY
PAGE 2 ...................................................................................................FEATURES
PAGE 3 ................................................................................ PACKAGE CONTENTS
PAGE 4 ....................................................................... ASSEMBLY INSTRUCTIONS
PAGE 8 .............................................................................. MOUNTING THE FRAME
PAGE 9 ..............................................................................STRINGING THE FRAME
PAGE 11 ................................................................. STRING CLAMP ADJUSTMENT
PAGE 12 ............................................................................TENSION CALIBRATION
PAGE 13 ...................................................................... DISK BRAKE ADJUSTMENT
PAGE 14 ................................................................PATHFINDER AWL OPERATION
PAGE 15 .................................................................................TROUBLESHOOTING
PAGE 15 .............................................................................. CARE AND CLEANING
PAGE 16 ....................................................................... MOUNTING STAND PARTS
PAGE 17 ...................................................................................... MACHINE PARTS
PAGE 18 ......................................................................................... PARTS LISTING
LIMITED WARRANTY
GAMMA SPORTS ("GAMMA") warrants to the original purchaser that the GAMMA 5003 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 string clamps), and for a period of one (1) year from the date of purchase for 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: Linear Gripper Plate adjustment, as described
on page 7, String Clamp adjustment, as described on page 11, tension calibration, as described on page 12, and Tensioner Brake
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
by calling 1-800-333-0337. 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.
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FEATURES
5
6
7
1
3
4
2
8
1 - Diamond Coated “Quick Action” Metal String Clamps
2 - Manual Spring Tensioner
3 - Diamond Coated Linear String Gripper
4 - Tension Range: 11lbs. - 89lbs.
5 - 6 Point Mounting System
6 - Full 360 Degree Turntable Rotation
7 - Large Convenient 141 sq. in. Tool Tray
8 - Height Adjustable From 36” to 48”
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PACKAGE CONTENTS
Your GAMMA 5003 is shipped in two cartons containing several smaller cartons. Open all
cartons and inventory the parts to be sure that the shipment is complete.
Save the cartons and packing materials for possible future shipments. GAMMA Sports can
not be responsible for machines which are not shipped in original, undamaged packaging.
Carton One Contents:
(1) Upper Support Post
(1) Lower Support Post w/ Plate
(1) Long Leg w/ Adjustment Foot
(3) Short Legs w/ Adjustment Feet
(4) M8 x 30 Cap Screws
(4) M8 x 25 Flat Head Screws
(1) Bellows Set
(1) Tool Tray w/ Pad
(1) Winged Turntable Locking Knob Screw
(1) Tensioner Assembly
(1) Tensioner Track
(1) Combination Needle Nose / Cutting Pliers
(1) Straight Stringers Awl
(1) Pathfinder Specialty Awl
(1) 9 pc. Hex Key Set
Carton Two Contents:
(1) Turntable w/ 2 “Quick Action” Clamp Bases Installed
(2) Clamp Head Assemblies
(2) “Quick Mount” Mounting Stands w/ Supports Fitted w/ Plastic Adapters
(1) Package of Spare plastic adapters for mounting system
(1) Package of Spare plastic adapters for frame support slide
(1) Package of plastic adapters for mounting system (badminton, squash & racquetball)
(1) 17 MM Socket wrench
(1) 5 MM T-Handle Allen wrench
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ASSEMBLY INSTRUCTIONS
Base Leg Assembly
The stringing machine uses a four leg base
design. The legs must be assembled to the
support post before use. Remove the lower
column support from the carton. This is the
larger of the two posts and has the GAMMA
label.
Note: For illustration purposes, the support
column has been painted white for these
instructions.
Align the holes in the leg flange with the
matching holes in the lower column support
post. Secure the leg with one FLAT HEAD
cap screw through the upper hole, and one
SOCKET HEAD cap screw through the bottom hole. Repeat this procedure for the three
remaining legs.
Base Foot Height Adjustment
Each foot of the Base Stand can be adjusted to compensate for uneven surfaces.
Upper Column Support Assembly
Insert the upper column support into the
lower column support / base leg assembly.
Leave the upper column extended to maximum height and lock in place with the two set
screws located at the top of the lower
column support.
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ASSEMBLY INSTRUCTIONS
Bellows Installation
The bellows assembly is supplied in two
pieces and should be assembled as follows.
Place the bellows section with the flange
over the upper support column with the
flange on the top. Place the remaining bellows over the upper support column and
mate it with the flange on the lower bellows.
Tool Tray Installation
Lower the tool tray over the top of the upper
column support and let it rest loosely on the
bellows assembly.
Tension Track Installation
Place the tube of the tension track assembly
over the top of the upper column support.
Securely tighten the two socket set screws
on the tension track assembly tube, locking
it to the upper column support. Align the
notch in the tool tray with the tension track
bar while raising the tool tray. Secure the
tray with the set screws in the side of the
tray casting.
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ASSEMBLY INSTRUCTIONS
Turntable and Mounting System Installation
To install the turntable remove the four nuts
underneath holding the mounting bolts in
place. Align the bolts with the holes in the
turntable pin. Secure them with the included
allen wrech.
NOTE: Applying the turntable brake will make
it easier to align the bolts and holes.
Locking the Turntable
The turntable may be locked in any position.
The turntable winged lock knob is packed
separately. Install the lock knob into the
threaded hole located on the side of the
tensioner bar post.
Rotate the knob clockwise to lock the turntable, and counter-clockwise to release the
turntable.
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 button
head screw and washer in the end of the
tensioner bar.
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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.
MOUNTING THE FRAME
Adjusting the Frame Support Posts
Loosen the lock bolts of the frame support
posts and space them apart with the frame
support slides separated by the approximate length of the racquet head. Although it
is not required, it is good practice to center
the support posts on the turntable. Lock one
of the posts in position by tightening the lock
bolt and position the other post until the frame
support slide is positioned near the inside
surface of the racquet frame. Securely
tighten the lock bolt of the second support
post.
Caution: To avoid racquet damage, the
center posts should not contact the racquet
prior to locking down the support posts.
Tightening the Frame Supports
Tighten the Frame Support Slides by turning
the adjustment knob clockwise until snug
against the racquet frame and slight resistance is felt.
Caution: Overtightening the Center Supports will stretch the head of the racquet and
could cause racquet damage.
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MOUNTING THE FRAME
Adjusting the Frame Shoulder Supports
Being sure the shoulder supports are free to
swivel in their mountings, simultaneously
rotate the shoulder support adjustment knobs
clockwise until both shoulder supports gently and squarely contact the frame.
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.
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.
The supports should be tightened to the point
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STRINGING THE FRAME
Setting Tension
The tensioner 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 counter-
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.
Travel Stop
clockwise until the “1” or “2” mark on the knob
Tensioner Travel Stop
To prevent contact between the tension
head and the racquet and/or turntable, a
travel stop is located about midpoint along
the tensioner bar below the gear track. In the
event the tension head must be moved closer
to the racquet, pull and turn the travel stop 90
degrees. To re-engage the travel stop,
simply pull and turn the travel stop 90 degrees.
Clamp Head Operation
GAMMA “Quick Action” Clamps are of a dual
action design where as the clamp head and
clamp base operate independently 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
increased friction between the clamps and the string to allow for reduced clamping pressure
while securing and holding the string under tension.
diamond coated gripper plates provide for
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STRINGING THE FRAME
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 Locking Lever is spring
loaded to assist the unlocking of the clamp
base.
The Locking Lever should be tightened
enough to prevent clamp base slippage on
the turntable, when the desired tension is
position to the clamped position and back, generally requires the rotation permitted by the slot
in the clamp base. If the rotation is not sufficient to allow smooth operation, adjust the Clamp
Base Locking Nut as outlined on pg 11.
Note: If the string slips in the string clamp while tensioning, adjust the gap between the clamp
jaws as per the following instructions.
placed on the string. To go from the loose
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.
Secure one of the strings using a string
clamp.
Pulling Tension
Wrap the loose section of string once
around the roller guide and insert the string
between the diamoind dust coated string
gripper plates. Pull the string perpendicular
to the gripper plates while slowly rotating the
tensioner crank clockwise until the brake
lever pops out of the latching block. The
string is now tensioned and can be clamped
in place with the remaining fixed clamp.
Repeat the above steps until all main strings
are installed. Tie off ends of main strings as
per racquet manufacturers recommendations.
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STRINGING THE FRAME
Weaving the Cross Strings
Weave the cross strings over and under 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.
STRING CLAMP ADJUSTMENT
Adjusting the Clamp Jaws
The GAMMA “Quick Action” Clamps will need minor
adjustments according to what string type, construction,
and gauge you are using.
To adjust the gap (clamping pressure) between the clamp
jaws, insert 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 compressing the clamp jaws together
Adjustment
Knob
the gap between the jaws. The clamp jaws should be cleaned periodically to be free from dirt,
oil, and any string coating for them to grip properly.
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.
by hand while turning the Adjustment Knob, in the clockwise direction. If the clamp leaves impressions or damages the string, it may be excessively tight and should be
adjusted by turning the knob counter clockwise to open
Adjusting the Clamp Base Locking
Nut
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
with the supplied 17mm socket wrench.
Tighten or loosen the locking nut in very small
increments to provide more clamping pressure or running clearance as needed.
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TENSION CALIBRATION
Tension Calibration Procedure
Step 1
Set the tension to 60 lbs. as indicated by the
linear scale and rotary knob. Place the string
on one end of a tension calibrator into a string
clamp and secure. Place string located on the
other end of the calibrator into the string
tensioner and apply tension. If the brake lever
releases before 60 lbs. or after 60 lbs., the
tension head should be calibrated as follows.
Step 2
Loosen the 1.5 mm locking set screw (A)
located on the side of the latching block as
shown. The set screw is used to hold the
A
adjustment screw in place.
Step 3
B
If the lever releases before 60 lbs., using the
supplied L-shaped hex wrench, turn the adjustment screw (B) 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 calibrator.
If the tension indicated in step 1 is greater
than 60 lbs., turn the adjustment screw clockwise to reduce the engagement of the brake
release latch with the brake lever. Repeat
step 1 and adjust until the correct tension is
indicated on the calibrator.
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DISK BRAKE ADJUSTMENT
A
A
B
A - Cover Screws B - Lock Bolt
C
Adjusting the Tensioner Brake
Step 1
After stringing many racquets, the brake of
the tensioner may need to be adjusted. The
Brake Adjustment Bolt can be accessed
through the hole in the face of the tensioner
cover, which does not need to be removed
for adjustment. The Tensioner Cover has
been removed in the pictures for illustration
purposes.
Step 2
With the brake lever engaged, loosen the
lower hex bolt located on the back side of the
tensioner frame with the 4 mm allen wrench.
Note: The hex bolt should only be loosened
until loose enough to turned by hand and
must not be removed completely.
C - Brake Adjustment Bolt
Step 3
With the hex bolt loosened and the brake
lever engaged in the latch, insert the 6 mm
hex wrench into the set screw locted inside
the nut located at the base of the brake lever.
To tighten the braking mechanism, turn the
set screw counter clockwise by about 1/8
turn. Re-tighten the hex bolt on the back side
of the tensioner frame and check for brake
tightness. The tensioner should move freely
along the track with the brake lever engaged
and should hold tension with the brake lever
released. If more adjustment is needed,
repeat steps above until properly adjusted.
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PATHFINDER AWL OPERA TION
The machine includes the Pathfinder stringing awl which creates a pathway between
or around strings and through tight grommets.
Insert the awl through the grommet hole in
the same manner as for traditional awls. The
Pathfinder awl must be closed 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 to
leave the end of the string exposed.
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TROUBLESHOOTING TIPS
PROBLEM SOLUTION
String slips in clamps
- Adjust gap between jaws
- Clean clamp jaws
String slips in gripper
String clamp slips on base - Clean base of clamp and top of
String tension too tight or too loose
For additional assistance, contact Gamma Sports Customer Service at 1-800-333-0337
- Clean gripper jaws
- Adjust Gripper Jaw Stop Screw
turntable
- Adjust Clamp Base Locking Nut
- Check tension using a tension calibrator
and adjust calibration if necessary
CARE AND CLEANING
With time and use, the clamping surfaces of your machine may become oily or dirty and result
in string or clamp slippage while stringing. Periodic cleaning of the following parts is
recommended.
String Clamps
Clean the inside gripping surfaces of the string clamp jaws by inserting a cloth or pipe cleaner
soaked with isopropyl alcohol between the jaws and rub back and forth. If the build-up is
excessive, dismantle the string clamp jaws to expose the gripping surfaces by removing
the adjustment screw. Using a small nylon brush (such as a toothbrush), a flat sharpening
stone, or an ermery board, scrub the inside surfaces until all debris is removed. 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. In cases
where there is a lot of build-up, use a flat emery board and scrub the surfaces first.
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MOUNTING STAND PARTS
142
PART #
9
21A
140
141
142
143
144
145
146
147
148
MFSPP
141
140
270
9
FRAME SUPPORT SLIDE
MTNG. STAND TOP PLATE
SUPPORT ARM - LEFT
SUPPORT ARM - RIGHT
SHLDER SUPP. LOCK KNOB
SUPP. ARM RETURN SPRING
ARM ADJUSTMENT KNOB
ARM ADJUSTMENT SCREW
SHOULDER V-CLAMP (L or R)
269
DESCRIPTION
M8 BOLT
MTNG. STAND PAD
MFSPP
21A
PART #
269
296
MFSPP
MMSPP
MMSSA
MMSSA
MMSPP
148
143
144
296
FRAME SUPP PADS (LtoR)
TENNIS SHLDER SUPP PAD
SHOULDER SUPP PAD (LtoR)
146
147
DESCRIPTION
SUPPORT SLIDE KNOB
SUPPORT POST
SQUASH
SHORT BADMINTON
TENNIS
BADMINTON
RACQUETBALL
BADMINTON
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MACHINE PARTS
MDCSC
MQAC
117
282
289
114
106
120A
116A
104
105
111
112
119
113
115
121
6B
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PARTS LISTING
PART #
6B
104
105
106
111
112
113
114
115
116A
117
119
120A
121
282
289
MQAC
MDCSC
DESCRIPTION
CAP SCREW - M8 X 30
TENSIONER ASSEMBLY
RETAINER SCREW
TABLE BRAKE KNOB
TENSIONER TRACK
TOOL TRAY
LONG LEG
SHORT LEG
FLAT HEAD SCREW - M8
LOWER COLUMN SUPP.
TENSIONER COVER
BELLOWS
UPPER COLUMN SUPP.
LEVELING FOOT
TURNTABLE
TT HANDLE
QA CLMP BASE TALL
STRING CLAMP
TOOLS AND ACCESSORIES
MPSA
MA
108
109
196
251
PATHFINDER AWL
STRINGERS AWL
BOX WRENCH - 10MM
98
UTILITY KNIFE
NEEDLE NOSE PLIERS
17MM SOCKET
9 PC. HEX WRENCH SET
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GAMMA SPORTS
200 Waterfront Drive
Pittsburgh, Pennsylvania 15222
Phone : 800-333-0337 Fax : 412-323-0317
Visit our website at www.gammasports.com
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