Adjusting The Feed Dog - JUKI MO-6800S Series Instruction Manual

5-10. Adjusting the feed dog

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
(1) Adjusting the feed dog height
❷
1) Turn the pulley to rise the feed dog the highest point.
2) Loosen the screw ❶ . and move the main feed dog ❷ up and down in order to keep the teeth side over
the throat plate about 0.9 to 1.1 mm (30P: 0.7 to 0.9 mm, 60H: 1.0 to 1.2 mm). Then, tighten the screw ❶ .
3) Loosen screw ❸ . Move differential feed dog ❹ up and down to adjust so that it is flush with main feed
dog ❷ . Then, tighten screw ❸ .
(2) Adjusting the inclination of the feed dog
❷
In the case of 30P
(3) Adjusting the auxiliary feed dog height
❸
❹
❶
❸
❶
❶
❷
To adjust the inclination of the feed dog, loos-
en screw ❶ and turn rear support shaft ❷ .
When the feed dog is flush with the top sur-
face of the throat plate and the feed dog is
levelled (30P: The feed dog is positioned with
its front part low), tighten screw ❶ .
The teeth section of auxiliary feed dog ❶ has to be
positioned lower than main feed dog ❸ by 0.3 to 0.5
mm (30P: 0.1 to 0.3 mm, 60H: 0.25 to 0.35 mm). The
height can be adjusted by loosening the screw ❷ .
– 21 –