Kenmore 16677 Service Manual - Page 18

TO ADJUST THE CLEARANCE BETWEEN THE NEEDLES AND THE LOWER LOOPER/NEEDLE GUARDS (3 of 3) CORRECT SETTING: THE STANDARD CLEARANCE BETWEEN THE NEEDLE AND THE TIP OF THE LOWER LOOPER SHOULD BE 0 MM TO 0.05 MM. TO ADJUST: 1. CHANGE THE RIGHT NEEDLE FROM #11 TO #14. LOOSEN THE HEXAGONAL SOCKET SCREW (A). 2. PUSH THE RIGHT NEEDLE WITH THE FRONT NEEDLE GUARD TO ADJUST THE CLEARANCE BETWEEN THE NEEDLE AND THE TIP OF THE LOWER LOOPER. THE CLEARANCE SHOULD BE 0 MM TO 0.05 MM. TIGHTEN THE HEXAGONAL SOCKET SCREW (A). 3. ATTACH #14 NEEDLE TO THE LEFT NEEDLE CLAMP. TURN THE HANDWHEEL TOWARDS YOU TO CHECK THE CLEARANCE BETWEEN THE LEFT NEEDLE AND THETIP OFTHE LOWER LOOPER. MAKE SURE THE FRONT NEEDLE GUARD IS TOUCHING THE NEEDLE SLIGHTLY AND THE REAR NEEDLE GUARD IS NOT TOUCHING THE NEEDLE. 4. CHECK THE TIMING BETWEEN THE NEEDLE AND THE LOWER LOOPER. 5. RECHECK THE NEEDLE BAR HEIGHT AND THE CLEARANCE BETWEEN THE NEEDLE AND THE LOWER LOOPER. NEEDLE #14 GFRUOARNDT NEEDLE_ O.O5MM LOOPER FRONT NEEDLE_ /_ HEXAGONAL GUARD _ (_1 ///SOCKET REAR NEEDLE GUARD ___/SCREWS (A) 0 TO 0.2 MM (REAR NEEDLE GUARD IS NOTTOUCHING THE NEEDLE.) REAR NEEDLE GUARD 16