Adjustment Method No.2 - Baby Lock Denim Pro BL 18 Service Manual

CLEARANCE BETWEEN NEEDLE AND HOOK (ADJUSTMENT METHOD NO.2)
TO CHECK:
USE THIS ADJUSTMENT METHOD NO. 2 IF THE CLEARANCE CANNOT BE ADJUSTED
BY METHOD NO.1.
THE CLEARANCE BETWEEN THE NEEDLE AND SHUTTLE RACE SHOULD BE –0.05
TO +0.10 MM.
ADJUSTMENT PROCEDURE:
1. SET THE PATTERN SELECTOR DIAL AT "
2. REMOVE THE REAR COVER (SEE PAGE 4).
3. LOOSEN THE SCREW (A) ON THE LOWER SHAFT BUSHING AND SLIDE THE GEAR
ABOUT 0.5 MM TO THE RIGHT TO CREATE SOME SLACK BETWEEN THE GEARS.
4. 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.
5. SET THE PATTERN SELECTOR DIAL AT "
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.
6. TIGHTEN THE TWO SHUTTLE RACE SETSCREWS (B).
7. SLIDE THE GEAR BACK TO THE ORIGINAL POSITION WHILE ADJUSTING THE
BACKLASH.
8. TIGHTEN SCREW (A) FIRMLY.
9. ATTACH THE REAR COVER.
NOTE: THE BACKLASH SHOULD BE 0.3 MM OR LESS AND THE LOWER SHAFT
SHOULD TURN SMOOTHLY.
AFTER THE ADJUSTMENT, CHECK THE HOOK TIMING.
SHUTTLE RACE
SETSCREWS (B) (2 )
MECHANICAL ADJUSTMENT
LOWER SHAFT
BUSHING (FRONT)
".
", TURN THE HANDWHEEL TO CHECK
SETSCREW (A)
–0.05 TO +0.10 MM
CLEARANCE SHOULD BE EQUAL
BOSS
LOWER SHAFT
11
NEEDLE
SHUTTLE RACE
SPRING