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.