Gamma 7900 Els, 8900 Els Owner's Manual

7900 Els

STRINGING MACHINE

2 PT SC MOUNTING

OWNER’S MANUAL

Issue 1 - June 2015

7900 Els

OWNER’S MANUAL

TABLE OF CONTENTS

WARRANTY ................................................................................................PAGE 2

FEA TURES .................................................................................................PAGE 3

UNPACKING & ASSEMBLY INSTRUCTIONS ............................................PAGE 4

POWER CONNECTION & CONTROLS ...................................................PAGE 11

CONTROL PANEL FUNCTIONS AND FEATURES...................................PAGE 12

STRING GRIPPER OPERATION..............................................................PAGE 13

MOUNTING THE FRAME .........................................................................PAGE 14

STRINGING THE FRAME ........................................................................PAGE 15

STRING LENGTH METER ...................................................................... PAGE 19

ADDITIONAL FEATURES .........................................................................PAGE 20

P A THFINDER A WL ...................................................................................P AGE 21

MAINTENANCE & ADJUSTMENTS .........................................................PAGE 22

TROUBLESHOOTING TIPS .....................................................................PAGE 24

PARTS LIST ............................................................................................. PAGE 26

PARTS DRAWING ....................................................................................PAGE 27

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 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 speciﬁ ed 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 23, Clamp Base adjustment, as described on page 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.

T o 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.

A GAMMA Care Service Plan is also available through GAMMA customer service, call 800.333.0337 for details.

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 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

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 a smaller carton for the ﬂ oor stand post and base legs. Please save the cartons and packing materials for possible shipments in the future. Gamma Sports cannot be responsible for machines that are not returned, shipped in their original, undamaged packaging. The tools you will need to assemble the machine are provided with the machine. Due to the weight of the tensioner unit, you may need the assistance of someone to help lift the tensioner unit out of the 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 (MMU3-26)

(1) Turntable Assembly w/ String Clamp Base and Mounting Stands w/ Frame Support

Slide, Side Supports, and Adapters

(2) String Clamps (1) 5mm T-Handle Hex Wrench (1) Package of spare plastic adapters for mounting system supports (1) 17mm Socket

Contents of Machine Base Carton (MMU3-17)

(1) Stringer Assembly Unit w/ Tensioner Module (1) Power Cord (1) AC Adaptor (1) Foot Pedal Tensioner Switch (1) Stringing Tool Set - Includes 1 ea Diagonal Cutter, Bent Nose Pliers, Straight Nose

Pliers, Starting Clamp, Straight Awl & Pathﬁ nder Specialty A wl

(1) Tools for assembly and maintenance

ASSEMBLY INSTRUCTIONS

Floor Stand Leg Assembly

The stringing machine uses a four leg ﬂ oor stand design. The legs must be assembled to the Lower Column before use. Remove all parts from the shipping carton to conﬁ rm that contents match the parts list.

Align the holes in the Leg Flange with the matching holes in the Lower Column. Secure the leg with one M8x30 ﬂ at head screw through the upper hole, and one M8x35 socket head cap screw through the bottom hole. Repeat this procedure for the three remaining legs.

Floor Stand Assembly

The ﬂ oor stand features a ratcheting Self-Locking system that incorporates a

Gear Track

Spring Pin

in the shallow slot, the Spring Pin will be retacted and not engage the Gear Track.

Spring Pin on the lower column to engage a gear track in the upper column. To set the Spring Pin to engage or disengage the Gear Track, pull the Spring Pin Knob out out from the housing and rotate it 90 degrees to position the Knob Key into the deep 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

Spring Pin Engaged

Helpful Tip: When setting the height, it is best to start from the lowest position and gradu-

ally raise the height until the Slef-Locking Spring Pin is engaged in the Gear Track at the desired height.

Lock Knob Loosened

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 gear track.

To lower the upper column, loosen the Lock Knob and while holding and supporting the upper column, pull out the Spring Pin, set the Knob Key into the shallow slot and lower the upper column.

ASSEMBLY INSTRUCTIONS

Attaching the Floor Stand to the Machine Base

Refer to the instruction sheet provided with the ﬂ oor stand for detailed instructions on which holes of the ﬂ ange plate to use and align with the threaded inserts located in the slots on the underside of the machine base.

With the ﬂ oor stand assembled and the up- per column locked into position at the lowest height, orient the ﬂ oor stand so that the string reel holder will be positioned on the left side of the machine base and bolt the ﬂ oor stand

to the underside of the machine base. The ﬂ oor stand can be assmbled to the machine base with the machine base laying on the ﬂ oor, or by setting the machine base on top of the ﬂ oor stand with the help of an assistant to align and balance the machine base on the ﬂ ange plate while installing and tightening the bolts from the underside.

Caution: To prevent damaging the threads of the inserts in the machine base, do not overtighten the bolts.

Raising the Height of the Machine

To raise the height of the machine, the Knob Key of the Spring Pin should be positioned in the deep slot of the housing to ensure that the Spring Pin is in the Self-Locking position and engaged with the Gear Track. Loosen the Lock Knob and with the help of an assistant, lift the machine base until the desired height is reached. When the desired height is reached, tighten the Lock Knob.

Lowering the Height of the Machine

T o lower the machine, you will need the help of an assistant. With one person holding up and supporting 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 the machine base until it comes to rest on the top of the Lower Column. Pull out the Spring Pin and position the Knob Key into the deep slot of spring Pin housing. Lift the machine base until the Spring Pin engages the ﬁ rst tooth of the Gear Track and tighten the Lock Knob, or

continue raising the machine until the desired height is reached and then tighten the Lock Knob.

CAUTION: To prevent damage to the string gripper, never lift or

move the machine by the string gripper.

ASSEMBLY INSTRUCTIONS

Tool Tray Installation

The T ool Tray will be attached to the aluminum 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 horizontal slot along the top edge of the base.

With the keyed tabs located within the slot in

the machine base slide the tray to the right

edge of the machine and next to the corner

cap of the base. Rotate the tray down until it

is ﬂ ush against the machine base.

holes line up and tighten the set screw to lock the threaded insert in place.

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 inserts in the machine base, do not

overtighten the bolts.

Note: If the holes in the bracke do not line up

with the holes in the threaded insert, loosen

the set screw in the threaded insert and slide

the threaded insert to the left or right until the

ASSEMBLY INSTRUCTIONS

AC Power Adapter Storage Shelf

The AC Power Adapter Storage Shelf provides a means to secure and protect the power adapter by storing it safely under the machine base. This will reduce a potential tripping hazard as well as eliminate potential damage to the AC Power Supply if laying on the ﬂ oor.

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 damaging the threads of the inserts in the machine base, do not overtighten the bolts.

Note: If the holes in the bracket do not line up with the holes in the threaded insert, loosen

the 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.

AC Power Adapter Storage Shelf

Place the AC Power Adapter onto the storage

shelf. The excess cable can be coiled up

and placed between the top of the AC Power

Adapter and the machine base.

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 positioned on the ﬂ at surfaces, securely tighten the rodto the Lower Column.

The String Reel Holder can hold up to 4 reels

of string (depending on the size of the string

reel). Before placing the ﬁ rst reel on the rod,

slide two spacers over the pin and slide them

to the boss on the Lower Column.

After the ﬁ rst 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 reel).

After the last reel is installed, place two washers on the rod and attach the threaded knob to the end of the rod.

Note: The String Reel Holder can be repositioned anywhere you wish on the lower column by loosening the set screws in the threaded boss and repositioning the threaded boss in the lower column.

+ 19 hidden pages

Gamma 7900 Els, 8900 Els Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual