GAMMA 6900 Els STRINGING MACHINE 2 POINT SC MOUNTING (Issue 4B - February 2014) - Manual (Page 20)

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TROUBLESHOOTING TIPS
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. Knife sharpening stones work well for cleaning the
diamond coated string clamping surfaces. Cleaning with a solvent such as isopropyl alcohol
and a mild abrasive tool such as a toothbrush also works well to remove oily or greasy build up.
PROBLEM SOLUTION
String slips in clamps - Adjust gap between clamp jaws
- Clean clamp jaws
String slips in gripper - Clean gripper jaws
- Make sure string is wrapped over top gripper
prior to inserting between gripper jaws
String clamp base slips on turntable - Clean bottom of clamp & top of turntable with
alcohol
- Adjust clamp base locking nut
Electrical system does not function - Check power source
- Check power cord connections
String tension too tight or too loose - Check tension using a tension calibrator,
adjust machine calibration if necessary
2pt Hold Down Clamp Adjustment
The 2pt hold down clamps have been adjusted at
the factory. However, depending on the racquet
frame thickness, the hold down clamp may require
adjustment. Use a 3 mm hex wrench and turn the
set screw clockwise to reduce the hold down clamp
pressure and counter clockwise to increase the hold
down clamp pressure.
Note: To avoid potential damage to the racquet only
make small adjustments at a time by slightly turning
the set screw by no more than 1/4 of a turn. Test
the hold down lever to insure the racquet is held
snuggly but without applying excessive force to the lever.
Periodically clean the hold down clamp pin using rubbing alcohol to remove residue or dirt,
that may build up over time.
MAINTENANCE & ADJUSTMENTS