Barudan BEXS - Hook Timing

15. Replace theRatchet Washer.
16. Replace theTension knob, turningit
clockwise until it is ½ way turneddownonto
thetensionassemblypost.
17. Adjust thenewTake-Up Spring as instructed
on page1-24 of theMechanical Guide.
Hook Timing
Hook timing is probablythemostmisunderstoodaspectof embroiderymachinemechanics.It
has nothingto do with thetypeof fabric, tensionor synchronizationof theheadson a
multiheadmachine.
Hook timing is theproperpositionof thehook assemblyin relationto the
needlein orderto form a stitch. The hook is directly attachedto thedrive shaft, eliminating
3-5 X Series Mechanical Guide
Tension Assembly PostTension Assembly Post
Take-Up S pring BracketTake-Up S pring Bracket
theneedto routinelyre-time it. Re-timing of thehook only becomesnecessarydueto external
factors.
Somethinggetscaughtin thehook assembly.
The size of theneedleis changedby morethanonesize.
An accumulationof threadbehindthehook pushesthehook outof line.
The mostcommonindicationthatthehook timing needsadjustmentis whenthemachinefails
to form andcompletea stitch.
Checking the Hook Timing
1. Leave theneedleandbobbinthreadedandremovetheneedleplate.
2. For easier access to timing, set themachineto thelast needle.
3. Locate theMain Drive Pulley with degreeindicator.
NOTE: The main drive pulley on an arm type machine is driven by the
main motor drive belt. Remove the cover to access it.
The main drive pulley on a bridge machine is located on the side of the
machine oppositethe automat under a metal cover.
Always rotate the main drive pulley in the direction that rotates the hook
counterclockwise.