6004
STRINGING MACHINE
OO
WNER'S MANUWNER'S MANU
O
WNER'S MANU
OO
WNER'S MANUWNER'S MANU
Issue 3 - December 14, 2000Issue 3 - December 14, 2000
Issue 3 - December 14, 2000
Issue 3 - December 14, 2000Issue 3 - December 14, 2000
Copyright 2000 GAMMA Sports - All Rights Reserved
ALAL
AL
ALAL
6004
STRINGING MACHINE
TABLE OF CONTENTS
PAGE 1 ................................................................................... WARRANTY
PAGE 2 .....................................................................................FEATURES
PAGE 3 ...........................................................ASSEMBLY INSTRUCTIONS
PAGE 8 ................................................................ MOUNTING THE FRAME
PAGE 10 .............................................................. STRINGING THE FRAME
PAGE 12 ....................................................................... PATHFINDER AWL
PAGE 13 .......................................... MAINTENANCE AND ADJUSTMENTS
PAGE 17 ...................................................................TROUBLESHOOTING
PAGE 17 ................................................................. CARE AND CLEANING
PAGE 18 ................................................... COMPONENT IDENTIFICATION
PAGE 19 ........................................................................... PARTS LISTING
LIMITED WARRANTY
GAMMA Sports (GAMMA), warrants to the original purchaser that the 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.
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 GAMMA customer service. 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
MACHINE FEATURES
! Manual Spring Tensioner
! Diamond Coated String Gripper
! Tension Range: 11lbs. - 89lbs.
! 6 Point Suspension Mounting System ( 10 Point Support )
! CAM-LOCK Dual Action Composite String Clamps w/ Diamond Coating
! Full 360 Degree Turntable Rotation
! Precision Bearing Mounted Turntable
! Large Convenient 141 sq. in. Tool Tray
! Height Adjustable From 36” to 48”
2
ASSEMBLY INSTR UCTIONS
Base Leg Assembly
The GAMMA 6004 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.
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.
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.
3
ASSEMBLY INSTR UCTIONS
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. Align the tension track with
the long leg of the base assembly. 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.
4
ASSEMBLY INSTR UCTIONS
Turntable Installation
Position the recess in the underside of the turntable over
the flange of the turntable pin.
Attach the turntable to the turntable pin flange using the
included 4 - M6 cap screws.
Tighten securely.
provided..
Frame Support Post Installation
The support post assemblies are precision aligned at
the factory and are marked for proper installation on the
turntable.
Install the marked support post on the marked side of
the turntable. Align the threaded hole in the bottom of
the 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 with the
rounded edge toward the turntable.
Repeat procedure on the opposite side.
NOTE: 2 pcs. of M10 cap screws (#170) are provided
with the machine in the event the lever lock bolts
become inconvenient. Simply install the M10 screws in
place of the lever lock bolts and tighten with the wrench
5
ASSEMBLY INSTRUCTIONS
Clamp Head Installation
The post of the string clamp head and the 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.
Tensioner Installation
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.
Crank Arm Installation
Remove the flat head screw located on the crank shaft
with the 2.5mm wrench provided. Slide the crank handle
over the crank shaft while aligning the holes. Replace
the flathead screw.
6
ASSEMBLY INSTRUCTIONS
Note: 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.
Travel Stop
Setting the Gripper Jaw Spacing
The gripper jaws of the 6004 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 counterclockwise.
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.
7
MOUNTING THE FRAME
Height Adjustment
The turntable height of the GAMMA 6004 can be adjusted to suit the stringer. To adjust, loosen the two set
screws on the lower column support post below the
bellows assembly. Adjust the amount of engagement
between the upper and lower column supports until the
desired height is attained. Make sure that the tension
track is still aligned with the long leg of the base and
tighten the two set screws to lock the upper support
column into place.
Frame Support Post Adjustment
Place the racquet frame over the center support slide
and onto the frame support. Loosen the lever 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 support slide
should not contact the racquet prior to fixing the support
posts.
Shoulder Support Adjustment
The shoulder supports on the GAMMA 6004 are adjustable to provide support to the racquet frame. Loosen the
knurled knob at the bottom of the shoulder support and
swivel the support so that the pads will contact the frame
squarely when the arms are closed against the racquet.
Should the shoulder supports block string holes, adjust
the position of the racquet between the arms until the
shoulder supports contact the racquet between grommet holes.
8
MOUNTING THE FRAME
Support Slide Adjustment
Once the frame support posts are secured, lightly tighten
the support slides by turning the knobs on the outside of
the slides clockwise. Adjust the slides in equal increments until slight resistance is felt.
Apply a final adjustment to all racquet support points
until the racquet is firmly secured in the mounting
system.
Should the frame supports lose contact with the frame
while stringing, they should be adjusted, as needed, to
maintain contact with the frame.
Securing the Shoulder Supports
Secure the racquet frame with the shoulder supports by
rotating the large adjustment knobs on the outside of the
support post assemblies clockwise. Adjust the supports
until firm contact is made between the shoulder supports
and the frame.
The tear drop shaped holes torwards the back of the
shoulder supports are handy for holding the loose
end of the string while pulling the string through the
racquet. Simply insert the loose end into the tear
drop shaped holes and slide the string into the point
of the hole.
9
STRINGING THE FRAME
Setting Tension
The GAMMA 6004 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.
Clamp Head Operation
Cam-Lock 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 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.
per the instructions on page 16.
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 placed on the string. To go from the
loose position to the clamped position and back, generally requires the travel permitted by the clamp base. If
the travel is not sufficient to allow smooth operation of,
adjust the Clamp Base Locking Nut as outlined on page
16.
Note: If the string slips in the string clamp while
tensioning, adjust the gap between the clamp jaws as
10
STRINGING THE FRAME
Pulling Tension
Wrap the loose section of string once around the roller
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.
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.
Pull the remaining end of the string with the tensioner to
the desired tension. Secure the string with the remaining clamp.
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.
11
PA THFINDER AWL
The GAMMA 6004 includes the new 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.
12
MAINTENANCE and ADJUSTMENTS
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 adjustment screw in place.
A
Step 3
B
B
If the lever releases before 60 lbs., using the supplied Lshaped hex wrench, turn the adjustment screw (B)
located on the left side of the latch block counterclockwise 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.
13
MAINTENANCE and ADJUSTMENTS
Adjusting the Tensioner Brake
Step 1
A
A - Lock Bolt
C
After stringing many racquets, the brake of the tensioner
may need to be adjusted.
With the brake lever engaged, loosen the lock bolt
located on the back side of the tensioner frame with the
4mm hex wrench.
Note: The lock bolt should only be loosened enough to
be turned by hand and must not be removed completely.
Adjusting the Tensioner Brake
Step 2
With the lock bolt loosened and the brake lever engaged
in the latch, insert the 6 mm hex wrench through the hole
in the tensioner cover and into the (C) brake lever
adjusting bolt.
C - 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 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.
Note: Cover Removed For Clarity
14
MAINTENANCE and ADJUSTMENTS
Cam-LockCam-Lock
The
Cam-Lock
Cam-LockCam-Lock
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 by hand while turning the Adjustment
Knob, in the clockwise direction. If the clamp leaves
Adjustment
Knob
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.
impressions or damages the string, it may be excessively tight and should be adjusted by turning the hex
screw counter clockwise to open 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 stringing
Cam-LockCam-Lock
Cam-Lock Clamp Base Adjustment
Cam-LockCam-Lock
If the bases of the Cam-Lock clamps slip on the glide
bars, the base locking levers may need adjustment.
Remove the plastic cap by pulling straight up on the
edges of the cap. Line up the large hole in the clamp
base with the smaller hole in the locking cone as shown.
Clamps will need minor adjustments
Cam-LockCam-Lock
Cam-Lock Clamp Base Adjustment
Cam-LockCam-Lock
Insert the 3MM hex wrench through the holes and into
the screw located in the base. Rotate the wrench
clockwise to tighten the clamp and decrease the base
locking lever travel. Rotate the wrench counterclockwise to loosen the clamp and increase the base locking
lever travel.
15
MAINTENANCE and ADJUSTMENTS
Turntable Brake Pad Replacement
Loosen the four set screws located at the top of the
turntable tube until the turntable and turntable flanged
pin can be lifted from the support tube.
Insert the 2.5 mm L-shaped wrench into the flat head
screw located on the inner side of the brake pad and the
end of the brake lever bolt. While holding the locking
lever bolt, turn the head of the screw counterclockwise
with the wrench to loosen the brake pad. Carefully
remove the turntable pad screw.
Pull the brake pad toward the center of the tube to
remove the pad from the end of the brake lever. Lift the
brake pad from the tube.
Place the new brake pad into the turntable tube. Insert
the end of the brake lever bolt into the hole in the of the
brake pad until the brake pad rests on the shoulder of the
bolt.
Insert the flat head screw into the end of the brake lever
bolt from the inner side of the brake pad. While holding
the head of the screw with the 2.5MM L-shaped wrench,
turn the lever bolt to secure the brake pad against the
shoulder of the lever bolt and set the head of the screw
below the brake pad surface. Turn the lever to retract
the pad until it sets against the inner surface of the
turntable tube which provides clearance for installation
of the turntable. Re-install the turntable and tighten the
4 set screws to secure the turntable to the turntable
tube.
16
TROUBLESHOO TING TIPS
PROBLEM SOLUTION
String slips in clamps
String slips in gripper
String clamp base slips on turntable. - Adjust Base Locking Levers
Tensioner slips on Tensioner Bar
after brake lever is released.
String tension too tight or too loose - Check tension using a tension
For additional assistance, contact Customer Service
- Adjust gap between jaws
- Clean clamp jaws
- Clean gripper jaws
- Adjust Gripper Jaw Stop Screw
- Clean Turntable Clamp Glide Rails
- Adjust tensioner brake lever
- Clean tensioner brake disc
calibrator and adjust machine calibra
tion 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 knob. Using a small nylon brush, (such as a toothbrush),
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.
17
COMPONENT IDENTIFICATION
173
178
201
194
203
204
195
193
120
116
205
119
180
115
113
112
111
117
104A
114
22A
21B
134
9
133
23A
6B
132
21A
135
122A
121
13
14
139
136
18
PARTS LIST
PART #
6B
9
13
14
21A
21B
22A
23A
104A
111
112
113
114
115
116
117
119
120
121
122A
132
133
134
135
136
139
173
178
180
DESCRIPTION
CAP SCREW - M8x30
WASHER - M8
POST LOCK LEVER
WASHER - M10
FRAME SUPPORT - TENNIS
FRAME SUPPORT - BAD.
BADMINTON ADAPTER - BLK
TENNIS ADAPTER - BLACK
TENSIONER ASSEMBLY
TENSIONER TRACK
TOOL TRAY
STAND LEG - LONG
STAND LEG - SHORT
FLAT HEAD SCREW - M8x28
LOWER COLUMN SUPPORT
TENSIONER COVER
BELLOWS
UPPER COLUMN SUPPORT
LEVELING FOOT
SHOULDER SUPPORT PADS
MTNG. ARM ADJ. KNOB - SMS
SUPPORT SLIDE KNOB - SMS
SUSPENSION MTNG. ARMS
SHLDR. SUPP. LOCK KNOB
SHOULDER SUPPORT - SMS
SHLDR. SUPP BUSHING - SMS
TURNTABLE - FLGE PIN 12MM
GLIDE BAR - SST
COMP. FIXED CLAMP - THIN
PART #
193
194
195
199
201
203
204
205
DESCRIPTION
TURNTABLE BRAKE LEVER
TURNTABLE BRAKE PAD
TT. BRAKE PAD SCREW
FLANGED TURNTABLE PIN
TT. BRAKE COLLAR
TT. PIN CAP SCREW
CAM LOCK BASE w/ GLIDEBAR
CAM LOCK CLAMP BASE
TOOLS AND ACCESSORIES
70
T-HANDLE WRENCH - 5MM
71
T-HANDLE WRENCH - 6MM
72
73
98
109
110
167
169
170
171
206
PATHFINDER AWL
STRINGERS AWL
BOX WRENCH - 10MM
NEEDLE NOSE PLIERS
BENT NOSE PLIERS
L-HEX WRENCH SET - 10PC.
BADMINTON FLYING CLAMP
SUPPORT POST SCREWS- M10
CUTTING PLIERS
BOX WRENCH - 14MM
19
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