Gamma 7900 Els Owner's Manual - Stringing  The  Frame

Summary of 7900 Els

  • Page 1

    Owner’s manual issue 1 - june 2015 stringing machine 7900 els 2 pt sc mounting.

  • Page 2: Limited Warranty

    2 limited warranty gamma sports warrants to the original purchaser that the 7900 els stringing machine (“equipment”) purchased is free from defects in materials and workmanship for a period of fi ve (5) years from the date of original purchase for mechanical parts (excluding electrical parts and str...

  • Page 3: Machine Features

    3 machine features electric constant pull tensioner with 11.0 to 90.0 lbs tension range digital tension setting with led display quick closing linear string gripper professional two point self centering racquet mounting system- accommodates all racquets professional “quick action” dual act...

  • Page 4: 7900 Els

    4 7900 els unpacking instructions & contents instructions for unpacking and preparing for assembly the stringing machine is shipped in three cartons, a large master carton for the stringing machine base with tensioner module and accessories, a medium carton for the turntable and mounting system and ...

  • Page 5: Assembly  Instructions

    5 assembly instructions floor stand assembly with the spring pin engaged and the knob key positioned in the deep slot, loosen that lock knob and lift the upper column. As the upper column is lifted out of the lower column, the spring pin will ratchet as it engages and disengages the teeth of the gea...

  • Page 6: Assembly  Instructions

    6 lowering the height of the machine to lower the machine, you will need the help of an assistant. With one person holding up and sup- porting the base of the machine, loosen the lock knob, pull out the spring pin and set the knob key into the shallow slot of the spring pin housing. Carefully lower ...

  • Page 7: Assembly  Instructions

    7 secure the bracket on the rear of the tool tray to the machine base with two hex head bolts. Align the two holes in the bracket with the threaded holes in the threaded insert located in the machine base. Tighten the bolts with a 6mm hex wrench. Caution: to prevent damaging the threads of the inser...

  • Page 8: Assembly  Instructions

    8 ac power adapter storage shelf mount the storage shelf to the threaded insert in the machine base near the rear right corner. Align the holes in the storage shelf bracket with the holes in the threaded insert. Use a 6 mm hex wrench to tighten the two hex head cap bolts. Caution: to prevent damagin...

  • Page 9: Assembly  Instructions

    9 assembly instructions string reel installation the string reel holder pin is an 8 mm rod with threads on both ends and fl at surfaces machined on one end. Thread the end of the rod without the fl at surfaces into the threaded boss on the right side of the lower column. Using the m6 open end wrench...

  • Page 10: Assembly  Instructions

    10 string clamp installation the post of the string clamp and tube of the string clamp base may be treated with grease to provide protection against corro- sion during shipping and while in storage. Remove any excessive grease with a clean cloth prior to use. The post and tube may also be cleaned wi...

  • Page 11

    11 warning! For indoor use only. Never open unit with power connected. Children should never be permitted to operate this machine without adult supervision. Instructions for power connection and controls caution ! Before connecting to the power supply, check the voltage source that the machine is be...

  • Page 12: Control  Panel  Features

    12 control panel features single digit (1-9) memory led display three digit (xx.X) tension setting display or string length led display 12 button keypad - used to enter tension settings tension index buttons - changes tension setting in +/- 1.0 or +/- 0.1 lb or kg increments. Holding the button down...

  • Page 13: Caution:

    13 string gripper operation to insert a string into the quick closing linear string gripper, wrap the string clockwise around the string guide and insert the string between the string gripper plates. Excessive slack in the string should be removed before applying tension. Pull the string perpendicul...

  • Page 14: Mounting  The  Frame

    14 mounting the frame mounting stand adjustment when mounting a racquet, adjust the mounting stands so that the white racquet supports on top of the mounting stands fi t inside the hoop of the racquet. Lower the racquet over the racquet supports and ad- just the mounting stands until the supports ju...

  • Page 15: Mounting  The  Frame

    15 mounting the frame special throat mounting racquets with a bridge that is thinner than the rest of the frame or are tapered from head to throat require special mounting to ensure the frame is not damaged. The white support pads need to be moved from the inside of the racquet bridge to the throat ...

  • Page 16: Stringing  The  Frame

    16 stringing the mains follow the manufacturer’s recommended stringing pattern for one or two piece stringing. To determine which end of the racquet to start installing the string count the number of grommet holes located in the throat bridge. If there are 2 or 6 holes start main strings at the cent...

  • Page 17: Stringing  The  Frame

    17 pulling tension remove excessive slack in the string before applying tension. To apply tension to the main string, wrap the string clockwise around the string guide to ensure that the proper tension will be applied to the string. Stringing the frame insert the string between the string gripper pl...

  • Page 18: Stringing  The  Frame

    18 stringing the frame clamping the first main string secure the tensioned main string using the remaining fi xed clamp. Repeat the procedure for all of the remaining main strings and tie off at the appropriate holes following the racquet manufacturers specifi cations. This will determine the starti...

  • Page 19

    19 string length meter operation to measure a length of string from a reel or set of string, insert the end of the string through the loop from the backside of the string guide attached to the front of the slm. Lift the clamp pad and insert the string through the entry hole on the face plate of the ...

  • Page 20: Additional  Features

    20 additional features turntable brake the turntable may be locked in any position. To lock the turntable brake pull the brake lock pin out. To release the turntable brake push the brake lock pin in. Storage drawers there are two storage drawers located in the base of the machine. The drawers open f...

  • Page 21: Pathfinder  Awl

    21 pathfinder awl the machine includes the pathfi nder string- ing awl which creates a pathway between or around strings to make inserting a string through blocked grommets easier and quicker. Insert the awl through the grommet hole in the same manner as for traditional awls. The pathfi nder awl mus...

  • Page 22

    22 maintenance & adjustments tension calibration pro- cedure during power up press the test button to enable the calibration mode. The display will show 22 lbs or 10 kgs. Kg/lbs can be changed at any time by press- ing the lb/kg button. Using a tension calibrator, apply tension to the calibrator and...

  • Page 23

    23 maintenance & adjustments adjusting the clamp base in the event the clamp base locking lever rotation is insuffi cient to ensure smooth operation of the clamp base, very minor adjustments to the clamp base locking nut can be made with a 17mm socket. Tighten or loosen the locking nut in very small...

  • Page 24: Troubleshooting  Tips

    24 troubleshooting tips problem solution string slips in clamps - adjust gap between clamp jaws - clean clamp jaws string slips in gripper - adjust gripper jaw stop screw - clean gripper jaws string clamp base slips on turntable - clean bottom of clamp & top of turntable with alcohol - adjust clamp ...

  • Page 25: Notes

    25 notes.

  • Page 26: Parts  List

    26 parts list 121 leveling foot 203 tt screws* 210 string reel holder bolt 211 string reel holder spacer 212 string reel holder knob 259 slide bracket 265 left drawer end cap 276 right drawer end cap 277 base corner cap (r) 278 base corner cap (l) 283 tt center cap 285 tt end cap- right 286 tt end c...

  • Page 27: Parts  Summary

    27 parts summary 309 mqac12 mmsc13 320 313 312 311 285 283 304 286 315 310 356 314 e77 210 211 409 412 424 426 413 429 277 276 278 288 265 287 423 121 411 420 299 425 323 322 416 395 289 362 327 419 415 259 301 407 406 194 422 421 417 418 389.

  • Page 28: Gamma Sports

    Gamma sports 200 waterfront drive pittsburgh, pennsylvania 15222 phone: 800.333.0337 fax: 412.323.0317 visit our website at www.Gammasports.Com copyright 2015 gamma sports - all rights reserved mman-58 (mg792-10).