Janome DC5100 - Backlash (Between Lower Shaft Gear and Hook Gear)

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SEWING MACHINE MODEL DC5100
BACKLASH (BETWEEN LOWER SHAFT GEAR AND HOOK GEAR)
BACKLASH ALLOWANCE
POINT OF HOOK RACE
CHECK THE
BACKLASH
GROOVE
GROOVE OF LOWER SHAFT BUSHING
LOWER SHAFT GEAR
A
MECHANICAL ADJUSTMENT (5)
B
HOOK GEAR
JOG THE HOOK RACE BACK AND FORTH TO CHECK ROTARY PLAY.
THE STANDARD PLAY SHOULD BE 0.8 MM (0.03˝) OR LESS WHEN THE HOOK POINT IS WITHIN THE FEED
DOG WIDTH. IF THE PLAY EXCEEDS 0.8 MM, ADJUST AS FOLLOWS.
ADJUSTMENT:
1. REMOVE THE BED COVER (SEE PAGE 14)
2. LOOSEN THE SETSCREW.
3. TURN THE LOWER SHAFT BUSHING (ECCENTRIC BUSHING) CLOCKWISE (B) IF THERE IS TOO MUCH
PLAY IN THE HOOK RECE.
TURN THE LOWER SHAFT BUSHING (ECCENTRIC BUSHING) COUNTERCLOCKWISE (A) IF THERE IS
TOO LITTLE PLAY IN THE HOOK.
4. TIGHTEN THE SETSCREW SECURELY AFTER ADJUSTMENT AND INSTALL THE BED COVER.
NOTE:
AFTER ADJUSTING THE BACKLASH, BE SURE TO CHECK THE NEEDLE TO HOOK TIMING AND THE
FEED DOG HEIGHT.