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Technical Reference
12 Needle Machine
9 Needle Machine
Color change
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Color change
Title: Color Change Potentiometer Replacement for SA style machines
Date: March 3, 2009
Models: BES-916, BES-1216, BE-0901 & BE-1201
With power to the machine off, turn color change knob until machine is on needle number one and
the flag on the motor gear is sticking straight up. The flag will be underneath the color change
assembly cover and can best be viewed with a flashlight aiming at approximately 45 degrees into the
color change assembly at about the height of the take-up levers from the right hand side of the
machine.
9 Needle
12 Needle
Remove the old color change potentiometer by loosening the two outer setscrews, the ones closest to
the potentiometer, that hold the color change potentiometer to the gear or knob, depending on
whether you have a 9 or 12 needle machine, and slide the color change potentiometer out.
Setscrews
Color Change Knob
Color Change Potentiometer
Setscrews
Color Change Gear
Color Change Potentiometer
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Unplug the old color change potentiometer by following the cable out of the potentiometer and
unplugging at the connector.
Remove the mounting bracket from the old color change potentiometer with a wrench and install on
the new potentiometer in the same orientation as the old one.
Mounting Bracket
Plug the new color change potentiometer into the connector but do not connect mechanically to the
machine.
Press and hold the up arrow, on the panel while turning on the machine. Continue to hold up
arrow down until a menu is displayed asking you to confirm going into test mode. Press the to
go into the test mode. It will then ask you for a password. Input
and press the key.
Select the icon with the or jog key and press the key.
Select the icon with the or jog key and press the key.
The following screen will be displayed.
Turn the shaft sticking out of the potentiometer slowly until you get a reading of 19 on the
potentiometer level on the display. The machine will also start beep continuously when the number 19
is displayed.
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Insert the new potentiometer into the knob or gear of the color change assembly being careful not to
turn the shaft while doing it. After you get the potentiometer in place, the machine should still be
beeping and 19 displayed on the panel. If not, then turn shaft of potentiometer until it comes back.
Tighten the two outer setscrews of the color change assembly knob or gear to hold it in place. One
setscrew will be accessible from the top, which you should do first. Then, turn the color change knob
to get to the other one.
Press the key and turn the power off to the machine.
Power back on the machine and check the color changing. It should be fine and the machine ready to
run.
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