ADJUSTMENT PROCEDURE

I/S-TURBO REV 2.X

The REV 2.x revisions of the I/S-TURBO software provide adjustment means to set the needle speed, the needle positioner's up and down positions and the constant speed range. The SELECTOR DIAL on the back of the machine is used to select the adjustment modes. NOTE that the front dial is disabled in adjustment mode.

REAR SELECTOR DIAL

POSITION

6 stitches per inch

12 o’ clock

MAX.

ADJUSTMENT

MODE

needle positioning speed

(auto adjustment)

regulated speed

needle up/down positions

maximum constant speed

The DOWN pushbutton is used to select between increasing (light off) and decreasing (light on) the settings

To enter the adjustment mode, hold the RED SINGLE STITCH BUTTON down while powering up the unit. The button should be held down until the machine stopped beeping.

You can also enter the adjustment mode, WITH THE FACTORY DEFAULT SETTINGS RELOADED, by holding the DOWN and LASER pushbuttons down simultaneously while powering up the machine.

The light above the LASER button will flash to indicate that you are in the adjustment mode.

It is recommended to perform the adjustment with a threaded machine, over a quilt, or practice piece. The machine should be moved after each stitch to avoid thread pile-up at the same spot.

A. NEEDLE POSITIONING SPEED AUTO ADJUSTMENT

In this mode the needle speed for the needle positioner is adjusted by an automatic process.

Note that the needle positioning speed adjustment will affect ALL of the other settings, so it should be performed first.

Turn the SELECTOR DIAL to the B1 position.
Push the RED BUTTON. Three short beeps will indicate that the auto adjustment is about to start. During the adjustment several stitches will be made. Make sure that you move the machine between stitches to avoid pile-up at the same spot. The needle positioning speed will be automatically adjusted until the take-up lever reaches the optimal "up" position. You will hear a beep after each stitch where the take-up lever is at this position. If three consecutive stitches produce the same, correct position, the auto adjustment is finished, indicated by three short beeps.

NOTE: If the proper take-up lever position is not reached after taking 20 stitches, the process stops with one long beep. Possible causes of this may include intermittent drag (tight spot) in the mechanism, trapped thread, improper tension setting, etc. After eliminating the problem, you need to repeat the auto adjustment until proper completion.

B. REGULATED STITCHING SPEED

The REGULATED STITCHING SPEED directly affects the quality of the stitch regulation. If you can "outrun" the machine, in other words, the stitches get longer when you move the machine faster, the REGULATED STITCHING SPEED is not high enough. On the other hand, if the stitches are shorter than the selected length, because double stitching occurs, the REGULATED STITCHING SPEED is too high. Too high speed can also cause motor overheating.

The AUTO ADJUSTMENT sets the REGULATED STITCHING SPEED to a level that is optimal for a machine with average mechanical drag. However, some machines may run slower than the average, usually during their first month(s) after coming out of the manufacturer, or because of minor misalignments in the mechanism. In case of a "tighter" machine, we strongly suggest to investigate the causes of the tightness first. Only if the investigation does not reveal mechanical problems as the cause of tightness do we recommend adjusting the REGULATED STITCHING SPEED.

While all of the other adjustments are "What You See Is What You Get", the REGULATED STITCHING SPEED setting requires testing outside the adjustment mode: After changing the speed, return to the normal operating mode by turning the power off and on again. Test the quality of the stitch regulation by moving the arm with your slowest and fastest speed and decide whether further adjustments are necessary. If yes, return to the adjustment mode and make the changes.

In order to help you in memorizing the settings, and to make the phone assistance from an IntelliStitch service representative easier, the actual REGULATED STITCHING SPEED correction is reported by AUDIBLE INDICATION, a series of short and long beeps every time you push the RED BUTTON. The relationship between the beeps and correction steps is shown on the table below. The short beeps are marked by "●", the long ones by "▬".

AUDIBLE INDICATION	CORRECTION	AUDIBLE INDICATION	CORRECTION
● ● ●	0	● ● ▬	+1
● ▬ ●	+2	● ▬ ▬	+3
▬ ● ●	+4	▬ ● ▬	+5
▬ ▬ ●	+6	▬ ▬ ▬	+7

The optimum setting of the REGULATED STITCHING SPEED will be just high enough to provide accurate stitch length, but not too high to cause motor overheating or double stitching. Always start with the speed set by the AUTO ADJUSTMENT, and gradually increase it until acceptable regulation is reached.

To change the REGULATED STITCHING SPEED, follow the procedure below:

Based on the regulation quality test, decide if the speed needs to be increased or decreased.
Turn on the DOWN light if the speed needs to be decreased, turn it off if increasing is necessary.
With the SELECTOR DIAL at the 6 stitches/inch position, push and hold down the RED BUTTON. A series of short and long beeps will report the actual speed correction setting.
While still holding the RED BUTTON down, hit the BLACK BUTTON. A beep will indicate that the speed was increased/decreased and the new value was stored in the computer's memory. A missing beep indicates that a high/low limit was reached.
Release the RED BUTTON and repeat the procedure from Step 3, changing the speed by one or two steps at a time.
Set the machine in normal operating mode and test the results of the adjustment.
Repeat the procedure from Step 1, if necessary.

C. NEEDLE UP/DOWN POSITION ADJUSTMENTS

The needle position sensor's timing is set at the time of the installation, there is no need to re-time the sensor. It is recommended, however, to check the proper timing before the needle position adjustment takes place.

To check the sensor timing:

While watching the red FAIL light, turn the handwheel very slowly to the forward direction (counter-clockwise, if viewed from the rear) until the light comes on. If the light just flashes, turn the handwheel backward until the light is on again. With fine adjustments of the handwheel the red light can be constantly turned on.
If the red light stays on when the needle is at its lowest position, the timing is correct, you can proceed to the UP/DOWN POSITION ADJUSTMENT.
If the red light is turned on when the needle is not at the desired position, please call the manufacturer or IntelliStitch installer for assistance.

The AUTO ADJUSTMENT sets the NEEDLE UP/DOWN POSITIONS to levels that are optimal for a machine with average mechanical drag. However, just like in case of the REGULATED STITCH SPEED, on tighter machines these positions may be slightly off after the AUTO ADJUSTMENT. In case of a tighter machine, we strongly suggest to investigate the causes of the tightness first. Only if the investigation does not reveal mechanical problems as the cause of tightness do we recommend to adjust the NEEDLE UP/DOWN POSITIONS.

The NEEDLE UP POSITION should be readjusted when after pulling it up with the needle position button (DOWN KEY), or stopping the machine with the DOWN light off

the take-up lever is not high enough to release the thread from the hook, in which case the needle up position needs a forward adjustment, or

the machine over-rotates, i.e. the needle passes its top position and gets too close to the fabric again, when a backward adjustment is needed.

The needle is at its proper up position when the take-up lever is at or near the position where it stops after using the RED SINGLE STITCH BUTTON.

The NEEDLE DOWN POSITION should be readjusted when after moving it down with the needle position button (DOWN KEY), or stopping the machine with the DOWN light on

the needle is not stopping low enough to keep the arm securely at the given position, in which case the needle down position needs a forward adjustment, or

the machine over-rotates, i.e. the needle passes its bottom position and starts coming out of the fabric, when a backward adjustment is needed.

The needle is at its proper down position when it stops about 1/8" BEFORE its lowest position.

To adjust the NEEDLE UP/DOWN POSITONS:

Turn the SELECTOR DIAL to the 12 o'clock position.
Push and hold down the RED BUTTON. Instead of a full single stitch cycle, a needle positioning step (up or down) will be made.

To differentiate between the "up" and "down" positions a beep will sound when the needle is supposed to be at the "up" position.
Check the up or down position of the needle.
If the up(down) position is correct, release the RED BUTTON, and go to Step 1 to check the other position.
If the up(down) position is not acceptable, while still holding the RED BUTTON down, test whether forward or backward adjustment is necessary:
- Turn the handwheel slowly forward (counter-clockwise, if viewed from the rear)
- If the take-up lever and the tip of the needle are going TOWARD the right positions, FORWARD ADJUSTMENT is necessary, so turn the DOWN light OFF.
- If the take-up lever and the tip of the needle are going AWAY from the right positions, BACKWARD ADJUSTMENT is necessary, so turn the DOWN light ON.
While still holding the RED BUTTON down, hit the BLACK BUTTON. A beep will indicate that the new position was stored in the computer's memory.
Release the RED BUTTON. To check the setting you have just adjusted, press and release the RED BUTTON, then press the RED BUTTON again and hold it down. Go back to step 5.
If the setting is correct for the position you have just checked, release the RED BUTTON then press the RED BUTTON again and hold it down. You are now checking the opposite position. Repeat the procedure until the desired needle positions are reached.

D. MAXIMUM CONSTANT SPEED ADJUSTMENT

With the SELECTOR DIAL at the MAX. position, push and hold down the RED BUTTON. The motor will start running continuously with the fastest constant speed.

Note that the RED BUTTON should be held down continuously during the whole procedure. Make sure you move the machine to avoid thread pile-up.
If the maximum speed needs adjustment, while still holding the RED BUTTON down, turn on the DOWN light if the speed needs to be decreased, turn it off if increasing is necessary.
While still holding the RED BUTTON down, hit the BLACK BUTTON. A beep will indicate that the speed was increased/decreased. Repeat the procedure from Step 2 until the desired maximum speed is reached.
Release the RED BUTTON to save the adjusted maximum speed in the computer's memory.

After the adjustments are made the power should be turned off and on again to start the unit in normal operating mode.

I/S Turbo CL 2.41 adjustment procedure