Gamma+ Progression Els Manuel utilisateur
OWNER’S MANUAL
Issue 1A - September 2010
Els
STRINGING MACHINE
2
Els
OWNER’S MANUAL
LIMITED WARRANTY
GAMMA Sports (GAMMA) warrants to the original purchaser that the Progression Els stringing machine (“EQUIPMENT”)
purchased is free from defects in materials and workmanship for a period of ve (5) years from the date of original purchase
for mechanical parts 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 specied 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 16, Quick Action Clamp Base adjustment, as described on page 16 and the cleaning procedures listed on page 17.
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 representa-
tive. 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.
A GAMMA Care Service Plan is also available through GAMMA customer service, call 800.333.0337 for details.
TABLE OF CONTENTS
WARRANTY ................................................................................................PAGE 2
FEATURES..................................................................................................PAGE 3
ASSEMBLY INSTRUCTIONS .....................................................................PAGE 4
POWER CONNECTION & CONTROLS ..................................................... PAGE 5
MOUNTING THE FRAME ........................................................................... PAGE 7
STRINGING THE FRAME ...........................................................................PAGE 9
ADDITIONAL FEATURES .........................................................................PAGE 12
PATHFINDER AWL ....................................................................................PAGE 13
MAINTENANCE & ADJUSTMENTS ......................................................... PAGE 14
TROUBLESHOOTING TIPS .....................................................................PAGE 16
NOTES ......................................................................................................PAGE 17
PARTS LIST ............................................................................................. PAGE 18
PARTS DRAWING.....................................................................................PAGE 19
3
MACHINE FEATURES
Electric Constant Pull Tensioner w/ 11.0 to 90.0 lbs Tension
Range
Digital Tension Setting w/ LED Display
Parallel Jaw Rotating Gripper w/ Diamond Dust Coated
Gripping Surfaces
Professional Six Point “Quick Mount” Racquet Mounting
System- Accommodates All Racquets
Professional “Quick Action” Dual Action, Rotating, Metal Fixed
String Clamps w/ Diamond Dust Coating
Durable Polystyrene Base Cover w/ Convenient Padded Tool
Tray
Strong, Light Weight, Aluminum Construction
Convenient Foot Actuated Tensioner Switch (Optional)
FEATURES
4
ASSEMBLY INSTRUCTIONS
String Clamp Installation
The post of the string clamp and 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.
Transportation Screw
The machine has been shipped with a motor
and load cell protection screw. Remove the
screw before using the machine. Retain the
screw for future shipment. Install the included
rubber grommet into the hole.
Remove this Screw
5
POWER CONNECTION & CONTROLS
Front Panel Features
A - String Gripper
B - Tension Switch
C - LED Tension Display
Back Panel Features
A - Lighted Power Switch
B - Foot Pedal Switch Receptacle
C - A/C Power Cord Socket
D - String Length Meter (currently not
available)
B
C
A
C
B
A
Instructions for Power Connection and Controls
CAUTION ! Before connecting to the power supply, check the voltage source that the
machine is being connected to. The acceptable range of input voltages for this ma-
chine is between 100 V and 240 V @ 50 to 60 Hz. If you have any questions regarding
the input voltage supply for your area, please ask your electric utility company.
To install the power cord, insert the female end of the power cord into the AC Adapter and
then insert the female end of the cord from the AC Adapter into the A/C Power Cord Socket
“C” located on the back panel of the tensioner. Plug the male end of the power cord into a
grounded power outlet. When using extension cords, use grounded heavy duty extension
cords rated for 15 AMP service.
To connect the foot pedal switch, insert the male pin at the end of the foot pedal switch cord
into the Foot Pedal Switch Receptacle “B” located on the back panel of the tensioner.
Switch on the machine by pressing the Lighted On-Off Power Switch on the back panel. At
start-up, the LED will display a countdown from “9.0” to “0.0” while the machine performs a
self diagnostics check at start-up.
D
WARNING! FOR INDOOR USE ONLY.
NEVER OPEN UNIT WITH POWER CONNECTED.
CHILDREN SHOULD NEVER BE PERMITTED TO OPER-
ATE THIS MACHINE WITHOUT ADULT SUPERVISION.
6
CONTROL PANEL FUNCTIONS
AND FEATURES
Single Digit (1-9)
Memory LED Display
Three Digit (XX.X)
Tension Setting Display
or String Length LED
Display
String Length Meter Button - feature is
currently not available.
Lbs/Kgs Button - Changes tension
display from Lbs to Kgs. Each press
of the button toggles back and forth
between Lbs and Kgs.
Speed Button - Changes pulling speed
of winder from Fast (default) to Medium
to Slow. Slow speed is recommended
for low stretch strings, such as Kevlar.
Each press of the button toggles be-
tween Fast, Medium and Slow speeds.
Pre-Stretch Function - Pulls string 10%
or 20% over the tension setting (up to 90
lbs / 40.8 kgs), releases the string, and
repulls to the tension setting. Each press
of the button toggles between 10%, 20%
or no pre-stretch.
Clear Button - Clears display to enter
a new tension or to reset String Length
Meter measurement.
Knot Function - Increases pulling ten-
sion by 10% over the setting value (max
90 lbs / 40.8 kgs) for one pull. During the
pull the LED stays lit to indicate the Knot
function is enabled.
Tension Index Buttons - Changes
tension setting in +/- 1.0 or +/- 0.1 Lb or
Kg increments. Holding the button down
will scroll the tension setting values up
or down. Tension settings entered with
the tension index buttons are placed into
temporary memory setting “0”.
Memory Button - Indexes from 9 preset
tension settings that can be stored in
memory. Settings are retained even if
machine is turned off. Each press of
the button indexes to the next memory
setting. Memory settings 1-9 must be
entered using the keypad followed by
pressing the “ENT” button.
Enter Button - Saves displayed tension
for Memory setting - when tension is en-
tered using the keypad display ashes
until this button is pressed to save the
setting. Also Clears display for String
Length Meter measurements.
Test Button & Racquet Strung -
Press once for approximate number of
racquets strung. Press again to return.
Press and hold for 5 seconds and the
machine does an internal diagnostic
check, such as the one performed at
start-up.
7
MOUNTING THE FRAME
Frame Shoulder Support Adjustment
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.
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 sup-
port 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 turn-
ing 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.
8
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 grasped and attempts are made to move it. Should any
supports lose contact with the frame while stringing, they should be re-tightened.
MOUNTING THE FRAME
9
STRINGING THE FRAME
Clamp Base Operation
To lock the string clamp base to the turntable,
rotate the clamp base locking lever clockwise.
To release the string clamp base from the
turntable, rotate the clamp base locking lever
counter-clockwise.
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 the clamp base.
String Clamp Operation
The string clamps are a dual action design
where the string clamp and clamp base oper-
ate independently of one another.
To clamp a string, lift the clamp head and
place the string between the jaws and de-
press the string clamp lever to secure the
string. The clamping pressure applied to the
string should be adjusted to provide sufcient
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.
Getting Started
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.
10
To tension a string, push the tension switch
or the foot pedal. The string gripper will ro-
tate and slowly apply tension to the string.
When the set tension has been attained, the
gripper will stop rotating and the display will
ash. 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 grip-
per does not release the string, depress and
hold the return button to release the string.
STRINGING THE FRAME
Applying Tension
To apply tension, wrap the string clockwise
around the gripper drum and position the
string between the gripper jaws.
The string must pass over the upper gripper
jaw before being placed between the gripper
jaws, as the tension on the string provides
the clamping force to the gripper jaws.
Before applying tension, gently pull the string
until all slack is removed.
Setting the String Tension
String tensions may be entered and stored into
one of nine memory storage settings (See sec-
tion on Control panel Functions and features) by
using the tension index buttons. While tension
setting is entered, the value displayed will be
temporary until the “Enter” button is pressed to
store it in one of the nine permanent memory
settings.
Aramid ber and metallic strings will generally string up tighter on the machine compared
to synthetic 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.
CAUTION: NEVER TENSION A STRING WITH YOUR FINGERS BETWEEN
THE STRING AND THE UPPER GRIPPER JAW AS SERIOUS INJURY COULD
RESULT IF YOUR FINGER IS CAUGHT BETWEEN THE STRING AND THE
UPPER JAW DURING TENSIONING. PUSH GRIPPER REVERSING
SWITCH OR ANY BUTTON IN CASE OF EMERGENCY.
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