Needle Clearance To Shuttle - Kenmore 385.11602090 Service Manual

SEWING MACHINE
SOURCE 385
PAGE 13
DIV. 20
MODEL 385. 11602090
385. 12708090
385. 12710090
385. 12712090
385. 12714090
NEEDLE CLEARANCE TO SHUTTLE
MACHINE SETTING:
CHECK:
ADJUSTMENT:
I. STITCH SELECTOR : [ _ ]
I. REPLACE THE NEEDLE WITH THE TESTPIN #68368.
2. THE CLEARANCE BETWEEN THE TESTPIN #68368 (A) AND SHUTTLE HOOK (B)
SHOULD BE 0 _ +0.15 MM.
I. REMOVE THE EXTENSION TABLE AND OPEN THE SHUTTLE RACE COVER.
2. LOOSEN THE SET SCREW (C) ON LOWER FRONT SHAFT BUSHING (D) AND SLIDE
THE SHAFT ABOUT 0.5 MM TO THE RIGHT TO MAKE A SLACK BETWEEN GEARS.
THEN, TIGHTEN THE SCREW (C) TEMPORARILY.
3. LOOSEN THE TWO SHUTTLE RACE SET SCREWS (E).
4. MOVE THE SHUTTLE RACE UNIT AXIALLY EITHER FORWARD OR BACKWARD TO
ADJUST THE CLEARANCE BETWEEN THE TESTPIN #68368 (A) AND THE SHUTTLE
HOOK (B) AT 0 - +0.15 MM TIGHTEN ONE OF THE SET SCREWS (E)
TEMPORARILY.
5. SET THE STITCH SELECTOR AT MAXIMUM ZIGZAG WIDTH. TURN THE HAND
WHEEL TO CHECK IF THE CLEARANCE BETWEEN THE TESTPIN #68368 (A) AND
INNER EDGES OF THE SHUTTLE RACE SPRING (F) AT THE LEFT AND RIGHT
NEEDLE DROPS ARE EQUAL. IF NOT, MAKE AND ADJUSTMENT BY TURNING THE
SHUTTLE RACE UNIT. _.
6. TIGHTEN THE TWO SHUTTLE RACE SET SCREWS (E).
7. LOOSEN THE SET SCREW (C) ON LOWER SHAFT FRONT BUSHING (D) AND SLIDE
THE SHAFT BACK TO THE ORIGINAL POSITION WHILE ADJUSTING THE
BACKLASH. TIGHTEN THE SCREW (_) FIRMLY.
8. CLOSE THE SHUTTLE RACE COVER AND ATTACH THE EXTENSION TABLE.
(NOTE) * THE BACKLASH PLAY SHOULD BE LESS THAN 0.3 MM AND LOWER SHAFT
TURNS SMOOTHLY.
• AFTER THE ADJUSTMENT, CHECK THE NEEDLE TIMING TO THE SHUTTLE
IN PAGE 15.
C
D
T- F
0 _-- -0,15MM
A B
#68368 F
I i
A