1 - 3Outline ofMechanismOutline of Mechanism DrivelineA) Up and down movement of needle bar, movement of thread take-up lever and zigzagmechanismB) Movement of feed dog and bobbinThread take-upcounter weightNeedle barhook standNeedle bar crankUnit shaft Joint Upper shaft PulleyThread take-up leverNeedle bar crank rodNeedle bar blockNeedle bar release leverZ zigzag Z zigzag cam Z pulse motorNeedle bar supporterassyNeedle barNeedleThread take-up counter weightNeedle bar crankNeedle bar crank rodNeedle bar blockNeedle bar hook standNeedle barNeedleUnit shaftJointUpper shaftPulleyNeedle bar supporter assyZ zigzag leverNeedle bar release leverZ zigzag camZ pulse motorLower shaft gearLower shaft b assyJointLower shaft AS pulse motorSide feed barTiming pulley DTiming beltSide feed plateUpper shaftFeed arm AOuter rotary hookFeed barVertical adjusting screw Feed dogFeed arm b assyF pulse motorUpper shaftpulleyPulleyFeed moduleTiming pulley D Timing belt Upper shaftpulleyLower shaft bassyVertical leverLower shaftgearOuter rotaryhookFeed adjusterVerticaladjusting screwF pulse motorFeed bar Feed dogFeed arm bassy Feed arm AUpper shaft PulleyLower shaft AS pulse motor Side feed plate Side feed barJointSide feed unit
