Gamma 7900 Els Owner'S Manual Download Page 3

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MACHINE FEATURES

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Electric Constant Pull Tensioner with 11.0 to 90.0 lbs Tension
Range

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Digital Tension Setting with LED Display

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Quick Closing Linear String Gripper

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Professional Two Point Self Centering Racquet Mounting
System- Accommodates All Racquets

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Professional “

Quick Action

” Dual Action, Rotating base clamps

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4 Tooth Universal String Clamps

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High Strength Extruded Aluminum Frame with Durable
Anodized Finish and Extra Large Padded Tool Tray



Unique Internal Drawer System for Storing Tools and Adaptors



Convenient Foot Actuated Tensioner Switch



String Length Meter

MACHINE FEATURES

Summary of Contents for 7900 Els

Page 1: ...OWNER S MANUAL Issue 1 June 2015 STRINGING MACHINE 7900 Els 2 PT SC MOUNTING ...

Page 2: ...age 23 and the cleaning procedures listed on page 24 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 GAMMAcustomer service representa ti...

Page 3: ...f Centering Racquet Mounting System Accommodates All Racquets Professional Quick Action Dual Action Rotating base clamps 4 Tooth Universal String Clamps High Strength Extruded Aluminum Frame with Durable Anodized Finish and Extra Large Padded Tool Tray Unique Internal Drawer System for Storing Tools and Adaptors Convenient Foot Actuated Tensioner Switch String Length Meter MACHINE FEATURES ...

Page 4: ...e carton Once the cartons are opened remove all inner cartons and check to be sure that all parts are present and accounted for Contents of Floor Stand Carton MMU3 19 1 Lower Column 1 Upper Column with Flange Plate 4 Legs 4 M8 x 30 Flat Head Screws 4 M8 x 35 Cap Screws 4 M6 x 20 Cap Screws 1 String Reel Holder M8 Threaded Pin 1 Knob 10 Spacers 2 M8 Washers Contents of Mounting System Carton MMU3 2...

Page 5: ...eep or shallow slot of the Spring Pin Housing When the Knob Key is positioned in the deep slot the Spring Pin will be in the Self Locking position and will engage the Gear Track When the Knob Key is set in the shallow slot the Spring Pin will be retacted and not engage the Gear Track Spring Pin Gear Track Spring Pin Engaged Lock Knob Loosened Helpful Tip When setting the height it is best to start...

Page 6: ... the machine base until the desired height is reached When the desired height is reached tighten the Lock Knob Attaching the Floor Stand to the Machine Base Refer to the instruction sheet provided with the floor stand for detailed instructions on which holes of the flange plate to use and align with the threaded inserts located in the slots on the underside of the machine base With the floor stand...

Page 7: ...threaded insert and slide the threaded insert to the left or right until the holes line up and tighten the set screw to lock the threaded insert in place ASSEMBLY INSTRUCTIONS Tool Tray Installation TheToolTraywillbeattachedtothealuminum extruded machine base on the right hand side below the tensioner To install the tool tray orient the tray at an angle and carefully insert the keyed tabs into the...

Page 8: ...e set screw in the threaded insert and slide the threaded insert to the left or right until the holes line up and tighten the set screw to lock the threaded insert in place ASSEMBLY INSTRUCTIONS AC Power Adapter Storage Shelf The AC Power Adapter Storage Shelf pro vides a means to secure and protect the power adapter by storing it safely under the machine base This will reduce a potential tripping...

Page 9: ...lide two spacers over the pin and slide them to the boss on the Lower Column After the first reel is placed onto the rod place two spacers between each reel to provide enough space between reels to 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 rod so the string spools off the reel from the underside of the r...

Page 10: ...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 Turntable and Mounting System Installation To install the Turntable position the Turntable over the turntable pin and align the holes in the turntable with the holes in the turntable pin Insert the bolts through the ho...

Page 11: ... the female end of the cord from the AC Adapter into the A C Power Cord Socket E located under 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 Sw...

Page 12: ... and repulls to the tension setting Each press of the button toggles between 10 20 or no pre stretch 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 Sav...

Page 13: ...ever located at the rear of the gripper As tension is applied the gripper jaws will engage to hold the string To release tension on the string depress the tension lever switch or use the foot pedal switch For adjustment of the parallel plates see Setting the Gripper Plate Spacing on page 22 CAUTION NEVER TENSION A STRING WITH YOUR FINGERS BETWEEN THE STRING AND THE STRING GUIDE AS SERIOUS INJURY C...

Page 14: ... Turning the knobs in the opposite direction will move the Mounting Stands closer together and will allow the Racquet Supports to move away from the racquet frame Adjusting the Inner Racquet Supports The white Racquet Supports are adjustable up and down to accommodate all racquets and provide max imum support to the racquet frame Screw the white pads up or down so they contact the frame at a maxi ...

Page 15: ... 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 of the racquet Bridge ...

Page 16: ...the String Clamp and Clamp Base operate independently of one another Toclampastring lifttheStringClampandplace the string between the jaws and depress the String Clamp Lever to secure the string The clampingpressureappliedtothestringshould be adjusted to provide sufficient pressure to securethestringwhensubjectedtothedesired pulling tension The textured surface of the teeth provide for increased f...

Page 17: ...y from the racquet and gradually apply tension to the string To release the tension on the string depress the tension release lever at the rear of the gripper or use the Foot Pedal switch For adjustment of the parallel plates see Setting the Gripper Plate Spacing on page 22 CAUTION NEVER TENSION A STRING WITH YOUR FINGERS BETWEEN THE STRING AND THE STRING GUIDE AS SERIOUS INJURY COULD RE SULT IF Y...

Page 18: ...plicable tie the first cross string using an appropriate starting knot Weaving the Cross Strings Weave the cross strings over and under the main strings being careful to alternate the weave of each consecutive cross string to be opposite of the previously installed cross string Completing the String Job Once the final cross string is tensioned and clamped tie off at the appropriate hole specified ...

Page 19: ...When the end of the string exits through the hole on the right press the ENTER button to Zero the String Length Meter and the length of string will be measured from the point on the string located at the edge of the exit hole Pull the end of the string at a slow steadyrateandtheSLMwillbeginmeasuring the length of string as it is pulled through the SLM and indicate the measurement on the display Wh...

Page 20: ...the end cap with a spring loaded latch To open the drawers depress that latch in the face of the drawer and slide them out to the right To close the drawers simply slide the drawers back inside the base and the latch with automatically lock into place Turntable Clutch Toadjustthefreerotationoftheturntable turn the Turntable Clutch bolt located on the left end of the base clockwise to add friction ...

Page 21: ... 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 This leaves the outer sheath in the grommet hole Insert the end of the string into the outer sheath While holding the string slowly pull the sheath out of the grommet hole to leave the free ...

Page 22: ... 88 lbs or 40 kgs Apply tension to the calibrator and adjust the value on the display up or down to match the reading on the calibrator Press the ENTER button to confirm and release the tension on the calibrator The Calibration procedure is now complete NOTE If ESC is pressed at any time during calibration the calibration procedure will be terminated and no new calibration data will be saved Gripp...

Page 23: ...n and gauge you are using To adjust the gap clamping pressure between the clamp jaws insert the string through the racquet as if you were beginning the main strings Clamp the strings and pull tension If the string slips through the jaws of the clamp tighten the clamp by turning the Adjustment Knob in the clockwise direction If the clamp leaves impressions in the string it may be excessively tight ...

Page 24: ...n if necessary Electrical system does not function Check power source Check power cord connections CARE CLEANING With time and use the clamping surfaces of your machine may become oily or dirty and result in string or clamp slippage while stringing Periodic cleaning of the String Clamps String Clamp Base and String Gripper is recommended The supplied Cleaning Stone or a knife sharpening stone work...

Page 25: ...25 NOTES ...

Page 26: ...OLT 407 TT CLUTCH SPRING 409 STRING REEL KNOB wGRIP 411 LEG EXT FLOOR STAND 412 M8X30 FLAT HEAD SCREW 413 M8X35 CAP SCREW 415 79 89 TT BRAKE BOX 109 NEEDLE NOSE PLIERS 110 BENT NOSE PLIERS 171 DIAGONAL CUTTERS 196 17MM SOCKET 221 SLM PADS 251 HEX WRENCH SET MA STRINGER S AWL MPG STARTING CLAMP MPSA PATHFINDER AWL MGEMC MACHINE COVER ITEMS NOT SHOWN MFSC FLOOR STAND CASTERS MTC CALIBRATOR SGSM STRI...

Page 27: ... 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: ...MMA 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 ...

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