Brother International LK3-B430 Service Manual - Page 14

THREAD TRIMMER I. While turning the pulley, operate the emergency sotp lever until the knife cam lever claw dropps into the recess of the knife cam. 2. Raise the machine head. 3. Thread trimming arm A 0 Remove E-shaped stop ring 0, loosen screw 0, and remove thread trimming arm A 0. 4. Thread trimming arm B 0 Pull it upward of the bed. 5. Lower the machine head to the level position. 6. Knife cam lever spring 0 Unhook the knife cam lever end of spring 0. 7. Knife cam lever 0 (1) Loosen screw 0. and remove stud 0. (2) Remove oil cap 0, loosen screw 0, pull out 0. knife cam lever shaft 4D. and remove knife cam lever 0 together with connecting rod PULLEY 1. Ball holder 0 Remove four screws 0, and then ball holder 0. 2. Pulley assembly €0 Remove nut 0 (left-handed). clutch plate 0, key 0, washers 0. and then pulley assembly 0. Also remove spring 0. 0 -0 0 0 -0 _ 0- 0 (r( J 0 0 0 - 12 -