Adjusting Clearance Between Needle And Hook - ELNA 6200 Service Manual

ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK

ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK
THE CLEARENCE BETWEEN NEEDLE AND ROTARY HOOK SHOULD BE
-0.10 TO +0.05 MM.
1. TURN THE POWER SWITCH ON. SELECT THE ZIGZAG STITCH (
MAXIMUM.
2. REMOVE THE NEEDLE PLATE AND BOBBIN HOLDER. ATTACH THE TEST PIN.
3. REMOVE THE BED COVER. (SEE PAGE 7) LOOSEN THE SETSCREWS (A), (B) AND SLIGHTLY
LOOSEN THE SET SCREW (C).
4. TURN THE HANDWHEEL TOWARD YOU TO BRING THE TIP OF THE HOOK BEHIND THE TEST PIN
AND ADJUST THE CLEARANCE BETWEEN THE TEST PIN AND THE TIP OF ROTARY HOOK
TO -0.10 TO +0.05 BY MOVING THE ROTARY HOOK SET PLATE UP OR DOWN.
5. TIGHTEN THE SCREW (A), (B), (C) FIRMLY.
6. CHECK THE ROTARY HOOK DRIVER GEAR AND THE LOWER SHAFT GEAR BACKLASH.
IF GEARS MESH OR ENGAGE TIGHTLY OR LOOSELY, ADJUST BACKLASH BETWEEN HOOK
DRIVE AND LOWER SHAFT GEARS".
7. REATTACH THE BED COVER, BASE NEEDLE PLATE AND BOBBIN HOLDER. REPLACE THE TEST
PIN WITH THE REGULAR NEEDLE.
NEEDLE PLATE
BOBBIN
HOOK
ROTARY HOOK
SET PLATE
SETSCREW(A)
) AND SET THE ZIGZAG WIDTH AT
TEST PIN
-0.1 TO + 0.05 mm
SETSCREW(C)
14
TIP OF ROTARY HOOK
SETSCREW(B)