Gamma+ Progression ES II User manual

STRINGING MASTRINGING MA
STRINGING MASTRINGING MA
STRINGING MACHINECHINE
CHINECHINE
CHINE
OWNER'S MANUAL
Issue 1 - January 2000
Copyright 2000 GAMMA Sports - All Rights Reserved

1
LIMITED WARRANTYLIMITED WARRANTY
LIMITED WARRANTYLIMITED WARRANTY
LIMITED WARRANTY
GAMMA Sports (GAMMA) warrants to the original purchaser that the PROGRESSION 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 electrical parts and string clamps), and for a period of one (1) year
from the date of purchase for all electrical parts and string clamps. Should any defects develop under normal use within the specified time periods, GAMMA will at its option,
repairorreplacethedefectiveEQUIPMENTprovideditisreturnedtoGAMMAprepaidatthepurchaser'sexpense.Thiswarrantydoesnotapplytoanydamageordefectcaused
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 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.
OWNER'S MANUAL
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
PAGE 1 ................................................................................... WARRANTY
PAGE 2 .....................................................................................FEATURES
PAGE 3 ...........................................................ASSEMBLY INSTRUCTIONS
PAGE 4 ................................................................ MOUNTING THE FRAME
PAGE 6 ................................................................TENSIONER CONTROLS
PAGE 7 ................................................................ STRINGING THE FRAME
PAGE 10 ....................................................................... PATHFINDER AWL
PAGE 11 .......................................... MAINTENANCE AND ADJUSTMENTS
PAGE 13 .......................................................... TROUBLESHOOTING TIPS
PAGE 14 ....................................................................... COMPONENT LIST
PAGE 15 .............................................................. COMPONENT DRAWING
WARNING! FOR INDOOR USE ONLY. TO BE USED BY ADULTS OR UN-
DER ADULT SUPERVISION ONLY. NEVER OPEN UNIT WITH POWER CON-
NECTED

2
MACHINE FEATURES
Electric Constant Pull Tensioner w/ 11lb. to 89lb. Tension Range
Digital Tension Setting Display
Professional Six Point “Quick Mount” Racquet Mounting System - Accomodates All
Racquets Without Adapters
Parallel Jaw Rotating Gripper w/ Diamond Dust Coated Gripping Surfaces
Professional “Quick Action”, Diamond Dust Coated, Fixed String Clamps
Durable Polystyrene Base Cover w/ Convenient Padded Tool Tray
Strong, Light Weight, Powder Coated Molded Aluminum Construction

3
ASSEMBLY INSTRUCTIONS
Turntable Installation
Insert the turntable center post into the bushing of the stringing
machine base.
Frame Support Post Installation
The ESII support post assemblies are precision aligned at the
factory and are marked for proper installation on the turntable.
Install the support post with the dot on its base to an identical dot
ontheturntable.Alignthethreadedholeinthebottomoftheframe
supportpostwiththeslotintheturntable.Screwtheleverlockbolt
with washer into the bottom of the support post and tighten
gently.Position the washer the rounded edge toward the turn-
table. Repeat procedure on the opposite side of the turntable.
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 provided.
Clamp Head Installation
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 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.

4
MOUNTING THE FRAME
Adjusting the Frame Support Posts
Placethe racquetframe overthe center posts and ontothe 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 center posts should not
contact the racquet prior to fixing the support posts.
Frame Shoulder Support Adjustment
Being sure the shoulder supports are free to swivel in their
mountings, simultaneously rotate the shoulder support adjust-
ment knobs clockwise until both shoulder supports gently and
squarely contact the frame.
Tightening the Center Supports
Tighten the Center Supports by turning the adjustment knob
clockwise until slight resistance is felt.
Caution:Overtighteningthe Center Supportsmaycause racquet
damage.

5
MOUNTING THE FRAME
Securing the Frame Shoulder Clamps
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.
The supports should be tightened to the point where the racquet
frame will not move in the mounting system when the handle is
graspedand attempts are made to move it. Should any supports
lose contact with the frame while stringing, they should be re-
tightened.

6
TENSIONER CONTROLS
Front Panel Features
A - String Gripper
B - Tension Switch
C - L.E.D. Tension Display
D - Tension Adjustment Knob
E - Cover Plate
F - Gripper Reversing Switch
Rear Panel Features
A - Lighted Power Switch
To turn the power on, press the left sideofthe
switch.
B - 5 Amp Fuse Holder (w/ spare fuse)
C - A/C Power Cord Socket
Insert the female end of the power cord into the
socket.
D - 110V / 220V Select Switch
Setting Tension
The Progression ES II stringing machine utilizes a rotary
adjusting knob along with a digital L.E.D. display to indicate the
set tension. To set the tension, rotate the adjustment knob
clockwise to decrease the displayed tension, counter-clock-
wiseto increase the displayed tension, until the desired tension
is displayed on the digital display. Aramid fiber and Metallic
strings will generally string up tighter on the Progression ES II
machine compared to synthetic or natural gut strings. There-
fore, when stringing with Aramid (Kevlar, Technora) hybrid
strings or metallic strings, we recommend setting tension 4-5
lbs. lower than you would normally use for synthetic or natural
gut strings.
26 . 0
B
C
D
A
E
F
C
D
B
A
110V
220V
USE ONLY WITH 250V FUSE

7
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
LockingLeverisspringloadedtoassisttheunlockingoftheclamp
base.
The Locking Lever should be tightened enough to prevent clamp
baseslippageontheturntable,whenthedesiredtensionisplaced
onthestring.Togofromtheloosepositiontotheclampedposition
and back, generally requires the rotation permitted by the slot in
th clamp base. If the rotation is not sufficient to allow smooth
operation of, adjust the Clamp Base Locking Nut as outlined
below.
Note:Ifthestringslips inthe stringclampwhile tensioning,adjust
the gap between the clamp jaws as per the following instructions.
Clamp Head Operation
“QuickAction”Clampsareofadualactiondesignwhereasthe
clamp head and clamp base operate independently of one
another.
Toclampastring,lifttheclampheadandplacethestringbetween
the jaws and depress the clamp head lever to secure the string.
Theclamping pressure applied to thestring shouldbe adjustedto
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
toallowforreducedclampingpressurewhilesecuringandholding
the string under tension.

8
Pulling Tension
To pull tension, wrap the free string clockwise around the gripper
drum and position the string between the gripper jaws.
The string must pass over the top half of the gripper before being
placed between the gripper jaws, as the tension on the string
provides the clamping force to the gripper jaws.
Gently pull the string until all slack is removed.
STRINGING THE FRAME
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.
Push the Tension Switch toward the right side of the machine.
The string gripper will rotate and slowly apply tension to the
string. When the set tension has been attained, the gripper will
stop rotating. As the tensioned string stretches, the gripper may
rotate intermittently, maintaining the set tension.
To release the string after clamping, push the tension switch
toward the left side of the machine. If the string gripper does not
release the string, depress and hold the Gripper Reversing
Switch once to release the string.
WARNING:KEEP FINGERS AWAY FROM GRIPPER DRUM WHILE TENSIONING
STRING. PUSH GRIPPER REVERSING SWITCH IN CASE OF EMERGENCY.

9
Clamping the First Main String
Secure the tensioned main string using the remaining fixed
clamp. Repeat the procedure for all of the remaining main strings
and tie off following the racquet manufacturers recommenda-
tions.
Follow the manufacturer's recommended stringing pattern for
one or two piece stringing. This will determine the starting point
for the cross strings. If applicable, tie the first cross string using
an appropriate starting knot.
STRINGING THE FRAME
Weaving the Cross Strings
Weave the cross strings over and under the main strings being
carefultoalternate the weave direction of each consecutive cross
stringso as to be opposite of the previously installed cross string.
Oncethe final crossstring is tensioned and clamped, tie off at the
appropriate hole specified by the racquet manufacturer.

1010
PATHFINDER AWL
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.
Whileholding pressure on the string, slowly pull the sheath out of
the grommet hole to leave the end of the string exposed.
The Progression ESII includes the new Pathfinder stringing awl
which creates a pathway between or around strings to make
inserting a string through tight grommets easier and quicker.
Insert the awl through the grommet hole in the same manner as
for traditional awls. The Pathfinder awl must be in the closed
position before insertion.

11
MAINTENANCE and ADJUSTMENTS
Clamp Base Locking Nut Adjustment
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 wrench. Tighten or loosen the locking nut in very small
increments to provide more clamping pressure or running clear-
ance as needed.
Turntable Bushing Adjustment
The Progression ESII is adjusted at the factory for optimum
performance. After time and use, the turntable bushings may
need minor adjustment. An adjustment is indicated when notice-
able turntable looseness or wobble occurs while stringing.
To adjust the fit between the turntable pin and the bushings,
tighten the set screw at the top of the bushing using a 3mm hex
wrench. Tighten until the turntable rotates smoothly without
excessive free play.
Adjusting the Clamp Jaws
The “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 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 hex screw counter clockwise to open the
gap between the jaws. The clamp jaws should be cleaned
periodicallytobefreefromdirt,oil,andanystringcoatingforthem
to grip properly.
Note: The string clamps supplied with your 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.
Adjustment
Knob

12
Tension Calibration Procedure
If you suspect that your Progression ESII is not pulling the correct
tension, you should check the tension with a Tension Calibrator which
provides a measurement of the actual pulling tension being applied by
the machine.
With the machine set for the fast pulling speed, and the tension set at
20 lbs., place one end of a calibrator equipped with synthetic string into
a string clamp. Place the opposite end into the string gripper and apply
tension. If the measured tension is inaccurate, remove the rectangular
cover from the L.E.D. display cover plate cover. Rotate screw (“Low
LBs”) in small increments until the displayed tension matches the
tension indicated on the calibrator. Set the machine tension to 80 lbs.
andapplytensiontothecalibrator.Ifthemeasuredtensionisinnacurate,
rotatescrew (“High LBs”)in smallincrements untilthe displayed tension
matches the tension indicated on the calibrator. Since adjustment of the “Low LBs” screw at 20 lbs can influence the tension at 60
lbs and visa versa, repeat these steps until the set tension matchs the tension reading of the calibrator at both 20 and 60 lbs. Replace
the rectangular cover in the L.E.D. display cover plate.
Pleasenotethat therewill bearange oftension from themaximum tensionat which thetensioner stopspulling(high endof therange),
to the minimum tension at which the tensioner starts pulling again (low end of the range). This difference between the high and low
end of the range can vary from 2-4 lbs depending on the string used to calibrate the machine and the speed of the tensioner. For
consistency, we recommend that the tension setting of the machine be calibrated as close as possible to the high end of the range,
using the fast pulling speed and a synthetic string, which is the method used at the factory. Using this method will be the most
consistent and will also insure that the racquet will not be over tensioned.
MAINTENANCE and ADJUSTMENTS
26 . 0
High KGs
High LBs
Low LBs
Low KGs
Units
Selection
Switch
LBs KGs

13
TROUBLESHOOTING TIPS
FUSE REPLACEMENT
To change the fuse, remove the power cord and pull the fuse holder straight out. Remove the old fuse from the holder and replace
it with the supplied spare. Replace the fuse holder into the machine and check for proper operation.
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
removingtheadjustmentscrew.Usingasmallnylonbrush,(suchasatoothbrush),scrubtheinsidesurfacesuntilalldebrisis 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
Follow the same procedure for cleaning the string clamps.
String tension too tight or too loose. - Check tension using a tension calibrator and adjust
machine calibration if necessary
Electrical system does not function. - Check power source.
- Check power cord connection.
- Check stringing machine fuse.
- Check for proper voltage setting (110/220) of machine.
- Call customer service.
String clamp base slips on turntable. - Adjust Clamp Base Locking Nut.
String slips in gripper. - Clean gripper jaws.
- Make sure string is wrapped over top jaw of gripper prior
to inserting between gripper jaws.
String slips in clamps. - Adjust gap between jaws.
- Clean clamp jaws.
PROBLEM SOLUTION

14
PARTS LIST
PART #
4
5
6
7
8
9
13
14
15A
21
22
23
24
246
36
37
101
102
103
122
244
140
141
142
143
144
DESCRIPTION
TURNTABLE BUSHING
RUBBER FEET
CAP SCREW
FOOT NUT
BUSHING SET SCREW
WASHER - M8
POST LOCK LEVER
WASHER - M10
2021 SUPPORT POST
FRAME SUPPORT SLIDE
BADMINTON ADAPTER
TENNIS ADAPTER
SUPPORT SLIDE KNOB
DIE CAST GRIPPER JAWS
GRIPPER JAW SPRING
CAP SCREW
A/C POWER CORD
FUSE HOLDER
5A FUSE
SHOULDER PADS (RED)
GRIPPER DRUM
MTNG. STAND TOP PLATE
MTNG. STAND PAD
SUPPORT ARM - LEFT
SUPPORT ARM - RIGHT
SUPPORT LOCK KNOB
PART #
145
146A
147
148
172
174
180
187
188
189
197
198
202
70
72
73
108
109
167
170
196
DESCRIPTION
ARM RETURN SPRING
ARM ADJUSTMENT KNOB
ARM ADJUSTMENT SCREW
SHOULDER V-CLAMP
2020-25 TURNTABLE
QA CLAMP w/GLIDE BAR
COMP. FIXED CLAMP (THIN)
PII ALUMINUM BASE
PII BASE COVER
PII LOWER TRAY PAD
ESII TENSIONER
ESII L.E.D. DISPLAY COVER
GRIPPER DRUM SCREW
HEX WRENCH - 5MM
PATHFINDER AWL
STRINGERS AWL
PLIERS
UTILITY KNIFE
BOX WRENCH - 17MM
M10 SUPP - POST SCREWS
10 PC. HEX WRENCH SET
TOOLS AND ACCESSORIES

15
EXPLODED PARTS VIEW