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To check, Adjustment procedure, Mechanical adjustment – Kenmore 385.15358 User Manual

Page 19

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SEWING

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DIV. 20

MODEL 384. 15358

CLEARANCE BETWEEN NEEDLE AND HOOK (ADJUSTMENT METHOD N0.2)

TO CHECK:

USE THIS ADJUSTMENT METHOD NO. 2 IF THE CLEARANCE CANNOT BE ADJUSTED

BY METHOD N0.1.

THE CLEARANCE BETWEEN THE NEEDLE AND SHUTTLE RACE SHOULD BE -0.05

TO+0.10 MM.

MECHANICAL ADJUSTMENT

4.

ADJUSTMENT PROCEDURE:

^

1.

SET THE PATTERN SELECTOR DIAL AT " iCp ".

2.

REMOVE THE REAR COVER (SEE PAGE 10).

3.

LOOSEN THE SCREW (A) ON THE LOWER SHAFT BUSHING AND SLIDE THE GEAR

ABOUT 0.5 MM TO THE RIGHT TO CREATE SOME BACKLASH BETWEEN THE

GEARS.

LOWER THE NEEDLE AND LOOSEN THE TWO SHUTTLE RACE SETSCREWS (B).

PULL UP OR PUSH DOWN THE SHUTTLE RACE TO ADJUST THE CLEARANCE

BETWEEN THE NEEDLE AND THE SHUTTLE RACE IN THE RANGE OF - 0.05 TO +

0.10 MM.

SET THE PATTERN SELECTOR DIAL AT" 3^ ", TURN THE HANDWHEEL TO CHECK

IF THE CLEARANCE BETWEEN THE NEEDLE AND INNER EDGES OF THE SHUTTLE

RACE SPRING AT THE LEFT AND RIGHT NEEDLE DROPS ARE EQUAL.

IF NOT, ADJUST BY TURNING THE SHUTTLE RACE UNIT.

TIGHTEN THE TWO SHUTTLE RACE SETSCREWS (B).

SLIDE THE GEAR BACK TO THE ORIGINAL POSITION WHILE ADJUSTING THE

BACKLASH.

TIGHTEN SCREW (A) FIRMLY.

ATTACH THE REAR COVER.

NOTE:

THE ROTARY PLAY OF THE TIP OF THE SHUTTLE DRIVER SHOULD BE

0.3 MM OR LESS AND THE LOWER SHAFT SHOULD TURN SMOOTHLY.

AFTER THE ADJUSTMENT, CHECK THE HOOK TIMING.

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