Test Mode Timing for the 860, 851 and 850
- Turn off all power to the machine.
- Pull back the side cover of the control panel to view
the dipswitches.
- Flip the bottom dipswitch (Labeled 1) to the On
position.
- Turn the machine back on.
- Press SET one time.
- Press the down position arrow key until the cursor is
flashing on #2 Main.
- Press SET.
- Rotate the handwheel at the back of the machine in the
direction of the arrow until the LCD Panel reads 196.5 degrees.
- Remove the needle plate and the U shaped cover
enclosing the rotary hook.
- Put in a brand new needle.
- Check that the tip of the rotary hook is centered
behind the back of the needle.
- If it is centered, check the gap behind the needle and
the rotary hook. The gap should be just large enough for a thread
to go through. A gap that is too wide will cause looping. Too
narrow will result in numerous thread breaks
If the gap or the rotary hook tip position is incorrect the machine should be timed. The two easiest needles to time are needle 1 or needle 12. Make sure you put in a brand new needle.
- Loosen the three set screws on the rotary
hook.
- Hold the rotary hook in position.
- Rotate the hand wheel until the LCD display reads 196.5
degrees.
- Hold the rotary hook firmly while making the necessary
adjustments, then tighten one of the set screws.
- Rotate the hand wheel once again to 196.5 degrees to
check the timing.
- If the timing is still incorrect, repeat steps
12-16
- Tighten the remaining set screws and then replace the U
Shaped cover and needle plate on the machine.
- Turn off power to the machine, and then flip the bottom
dipswitch to the Off position.
- Turn the machine on and resume
stitching