Gamma 7500 Els Owner'S Manual Download Page 9

String Reel Holder Installation

The string reel holder pin is an 8 mm rod with threads on
both ends, and flat surfaces machined on one end.
Thread the end of the pin without the flat surfaces into the
threaded boss on the right side of the lower column
support. Using the M6 open end wrench positioned on
the flat surfaces, securely tighten the pin to the lower
column support.

The string reel holder can hold up to 5 reels of string
(depending on the size of the string reel). Before placing
the first reel on the pin, slide two M8 washers over the pin
and slide them to the boss on the lower column support.
After the first reel is placed onto the pin, place two
spacers between each reel to provide enough space
between reels and allow them to turn freely without
rubbing against one another. (To provide a smooth feed
to the String Length Meter, place the reels on the pin so
the string spools off the reel from the underside of the
reel.)

After the last reel is installed, place the remaining
spacer(s) on the pin and attach the threaded knob to the
end of the pin.

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Summary of Contents for 7500 Els

Page 1: ...OWNER S MANUAL Issue 3 December 18 2000 7500 Els STRINGING MACHINE Copyright 2000 GAMMA Sports All Rights Reserved Provided by www gssalliance com ...

Page 2: ... 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 by calling 1 800 333 0337 The RA must be marked on the outside of the shipping carton being returned All returns...

Page 3: ...th Functions 3 String Reel Holder 4 Electronic String Length Meter 5 6 Point Suspension Mounting System 10 point support 6 Dual Action CAM Lock Swivel String Clamps w Diamond Coating 7 Convenient Foot Actuated Tensioner Switch 8 Full Fiberglass Cover w Integrated Tool Trays 76 sq in of storage area 9 Height Adjustable from 39 to 46 can also be used on table top 10 110 V 220 V Compatibility 1 5 6 1...

Page 4: ...th Flange Plate 4 Legs 1 Locking Knob Screw 4 M8 x 25 Flat Head Screws 4 M8 x 30 Cap Screws 1 String Reel Holder M8 Threaded Pin 1 Knob 10 Spacers 2 M8 Washers Contents of Large Master Carton including accessory cartons packed inside 1 Stringer Assembly Unit w Tensioner Module and Turntable 1 Power Cord w Ground Pin 2 Suspension Mounting Stands w Frame Support Slide Side Supports and Adapters 2 Mo...

Page 5: ...carton Base Leg Assembly Cont 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 Assembly Instructions Base Leg Assembly Cont To complete the base stand screw the height adjustment locking knob A into the side of the support column The loc...

Page 6: ...ctions Unpacking the Tensioner Assembly The tensioner assembly is packed inside the inner carton and is bolted to a sheet of wood with four 4 bolts to prevent damage during shipment Another sheet of wood is bolted to the underside of the inner carton through the first piece of wood First locate the nuts attached to the bolts that secure the outer piece of wood to the inner piece of wood Remove the...

Page 7: ...four 4 holes in the upper post flange with the holes in the tensioner base Secure the flange to the base with the four cap screws Height Adjustment The height of the machine is adjustable from 39 to 46 To change the height remove the socket head cap screw from its current position and place it in the appropriate hole to set the desired height of the ma chine 5 ...

Page 8: ...nd to ensure smooth operation Installing the Racquet Mounting System Align the threaded hole in the bottom of the frame support post with the slot in the turntable Screw the lever lock bolt with washer into the center hole located in the bottom of the support post and loosely tighten Position the washer with the rounded edge toward the turntable Repeat procedure for the support post on the opposit...

Page 9: ...ng depending on the size of the string reel Before placing the first reel on the pin slide two M8 washers over the pin and slide them to the boss on the lower column support After the first reel is placed onto the pin place two spacers between each reel to provide enough space between reels and allow them to turn freely without rubbing against one another To provide a smooth feed to the String Len...

Page 10: ...the face plate assembly to the string length meter To check for proper alignment lift the top clamp of the face plate assembly and insert a section of racquet string at least 12 inches long into the entrance hole of the face plate Continue feeding the string section into the string length meter until it appears through the exit hole If the entrance or exit holes appear to be blocked loosen the att...

Page 11: ... AMP service To connect the foot pedal switch insert the 2 pin mail connector located at the end of the foot pedal switch cord into the two pin receptacle located in the side 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 Of...

Page 12: ... to enter a new tension Knot Function Increases pulling tension by 10 over the setting value max 90 lbs 40 8 kgs for one pull During pull the Memory LED flashes to indicate that 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 tensi...

Page 13: ... prevent debris from entering the SLM When the end of the string appears out of the exit hole press the C button on the keypad to Zero the SLM and the length of string measured will be measured from the point on the string located at the edge of the exit hole Pull the end of the string in a slow steady fashion and the SLM will begin measuring the length of string pulled and indicate the measuremen...

Page 14: ...clamp base If the travel is not sufficient to allow smooth operation of adjust the Clamp Base as outlined in the Clamp Base Adjustment section Cam Lock Clamp Operation Clamp Head Adjustment The clamp heads will need minor adjustments accord ing 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 a...

Page 15: ...Tension String tensions may be entered using the keypad and storing the settings into one of four memory storage settings See section on Control panel Functions and features or by using the tension index buttons While tension setting is entered the value displayed will be flashing until the ENT button is pressed indicating that the tension setting is accepted Tensioning a String After wrapping the...

Page 16: ... 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 towards 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 hol...

Page 17: ...e previously installed cross string Once the final cross string is tensioned and clamped tie off at the appropriate hole specified by the racquet manufacturer Remove the strung racquet by loosening the shoulder supports and support slides in small increments until the racquet is free from the mounting system Installing the Main Strings To begin stringing the main strings insert the two ends of the...

Page 18: ...ole in the same manner as for traditional awls The Pathfinder awl must be in the closed position 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...

Page 19: ...to the string gripper and apply tension If the tension indicated on the calibrator does not match the tension setting release the string and remove it from the gripper Press and hold the Test button on the control panel for 5 seconds and release it when the winder rotates in the reverse direction and the machine performs its own self diagnostic test After tension display returns to the preset valu...

Page 20: ...e 4 cap screws that attach the jaws to the drum When removing the grippers take care to not loose the compression springs inside the cavities of the lower gripper jaw With the gripper jaws removed from the drum using the cleaning stone provided with your machine you can also use a small tooth brush or a sharpening stone for knives scrub the diamond coated plates until all debris is removed Clean a...

Page 21: ...c trouble shooting information if parts of the machine do not function normally When this occurs error codes will appear on the display A summary of the error codes and corrective actions that should be taken are provided below Code Corrective Action C01 C02 Check wiring to return microswitch on motor and PC board Check return microswitch on motor shaft Call GAMMA Sports for assistance Check that ...

Page 22: ... 115 6B 121 208 131 199 213 216 209 217 128 246 37 243 106 127 9 212 210 211 101 102 103 195 194 218 Inside Cover 219 221 223 Inside Cover 222 180 173 178 204 205 203 214 214 20 134 133 132 13 14 135 139 136 122A 21A 23A 21B 22A ...

Page 23: ...23A Tennis Adaptor Black 37 Gripper Cap Screw Set 101 AC Power Cord 102 Fuse Holder Cap 103 Fuse 106 Locking Knob Screw 114 Short Leg 115 Flat Head Cap Screw M8 x 25 121 Leveling Foot 122A Shoulder Support Pads Black 243 Gripper Drum Back Plate 127 Flanged Upper Support Column 128 FRP Base Foot 131 Foot Pedal Switch 132 Mounting Arm Adj Knob SM 133 Support Slide Adj Screw SM 134 Suspension Mountin...

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