Brother International LK3-B430 Service Manual - Page 40

ti No high speed operation High-speed belt tension is not enough High-speed belt tension High-speed pulley is slipping in high speed operation High-speed pulley torque Adjust high-speed belt to yield about 10 mm Adjust ball presser plate 1 position, or remose pulley! 27 washer. d Machine position. does not run to slop rI - Clutch cam tinting -I Brake shoe contact timing Work clamp does not rise. .._iWork clamp lifter roller shalt does not disengage from start leser. Power drise leser does not operate properly. Start leser position Power cam operation Adjust clutch cant timing Adjust brake. 29 Adjust start liner position. 28 Replace power drise lever. spring. _{Power cam operation is laulty. Power cam operation 4-I Adjust power drise leser. 31 Oil power drise liner roller. Work clamp does not lower. Power faulty. cam operation is - Low-speed belt tension Low-speed belt tension is not enough. Low-speed belt tension Power pulley gets hot. dPower pulley torque is too small for power cam to turn to reference needle position. d Power pulley torque is so great that power cam is forced back. Power pulley operation Adjust power drise 31 Adjust low-speed belt to yield about 10 mm. Adjust leser. power actuating 31 1 Work clamp rise is incorrect. Presser arm leser plate position is wrong. Distance from work clamp to top of needle plate Adjust work clamp height. 31 Work clamp opening and stitches arc not in line. c_lWork clamp is out of position in tack width directions. I Work clamp is out 01 -.position in tack length [directions. Position in tack width directions Position in tack length directions - 40 - Adjust work clamp in tack 25 1 width directions, Adjust work clamp in tack length directions.