Gamma+ Progression ES II+ User manual

STRINGING MASTRINGING MA
STRINGING MASTRINGING MA
STRINGING MACHINECHINE
CHINECHINE
CHINE
OWNER'S MANUAL
Issue 1 - March 18, 2001
Copyright 2002 GAMMA Sports - All Rights Reserved
ES II+

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, 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: String Clamp adjustment, as
described on page 11, Quick Action Clamp Base adjustment, as described on page 11, and the cleaning procedures listed
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. 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 ............................................ POWER CONNECTION & CONTROLS
PAGE 5 ................................................................ MOUNTING THE FRAME
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
ES II+

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
Convenient Foot Actuated Tensioner Switch

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 pre-
cision 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 on the turntable.
Align the threaded hole in the bottom of the
frame support post with the slot in the turn-
table. Screw the lever lock bolt with washer
into the bottom of the support post and
tighten gently.Position the washer the
rounded edge toward the turntable. Repeat
procedure on the opposite side of the turn-
table.
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 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 en-
sure smooth operation.

POWER CONNECTION & 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
side of the switch.
B - 5 Amp Fuse Holder (w/ spare fuse)
C - A/C Power Cord Socket
D - 110V / 220V Select Switch
E - 2 Pin Foot Pedal Switch Socket
B
C
D
A
E
F
C
D
B
A
110V
220V
USE ONLY WITH 250V FUSE
Instructions for Power Connection and Controls
CAUTION ! Before connecting to the power supply, check the voltage supply switch (letter
D) setting located on the rear panel. To change from 110 to 220 volt service simply slide
the switch fully to the left or to the right until “1 10V” or “220V” appears on the switch plate.
The acceptable range of input voltages for the “110 V” setting is between 110 V and 120 V
@ 60 Hz and for the “220 V” setting, between 220 V and 240 V @ 50 to 60 Hz. If you have
any question regarding the input voltage supply for your area, please ask your electric
utility company. When using extension cords, use grounded heavy duty extension cords
rated for 15 AMP service.
To install the power cord, insert the female end of the power cord into the Power Cord
Socket located on the rear panel (letter C). T o connect the foot pedal switch, insert the 2
pin male connector located at the end of the foot pedal switch cord into the two pin
receptacle located on the back panel. Tighten the connector with the sleeve nut located on
the foot pedal switch connector.
After checking to be certain that the machine is set for the correct input voltage, switch on
the machine by pressing the Lighted On-Off Power Switch on the rear panel.
WARNING! FOR INDOOR USE ONLY. TO BE USED
BY ADULTS OR UNDER ADULT SUPERVISION ONLY.
NEVER OPEN UNIT WITH POWER CONNECTED
E

5
MOUNTING THE FRAME
Adjusting the Frame Support Posts
Place the racquet frame over the center
posts 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
center posts should not contact the racquet
prior to fixing the support posts.
Tightening the Center Supports
Tighten the Center Supports by turning the
adjustment knob clockwise until slight resis-
tance is felt.
Caution: Overtightening the Center Sup-
ports may cause racquet damage.
POWER CONNECTION & CONTROLS
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 ad-
justment knob clockwise to decrease the
displayed tension, counter-clockwise to
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 Pro-
gression ES II+ machine compared to syn-
thetic or natural gut strings. Therefore, 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.

6
MOUNTING THE FRAME
SecuringtheFrameShoulderClamps
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 grasped and attempts are made to move it. Should
any supports lose contact with the frame while stringing, they should be re-tightened.
FrameShoulderSupportAdjustment
Being sure the shoulder supports are free to
swivel in their mountings, simultaneously
rotate the shoulder support adjustment knobs
clockwise until both shoulder supports gen-
tly and squarely contact the frame.

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
placed on the string. To go from the loose
position to the clamped position 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:If the string slips in the string clamp while tensioning, adjust the gap between the clamp
jaws as per the following instructions.
Clamp Head Operation
“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 de-
press the clamp head lever to secure the
string. The clamping pressure applied to the
string should be adjusted to provide suffi-
cient 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.

8
Pulling Tension
To pull tension, wrap the free string clock-
wise 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 re-
moved.
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.
To tension a string, push the tension switch
or the foot pedal. 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 or foot pedal. If the string
gripper does not release the string, de-
press 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 proce-
dure for all of the remaining main strings and
tie off following the racquet manufacturers
recommendations.
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.
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 speci-
fied by the racquet manufacturer.