– 75 –
For your long usage, the following routines (checks and maintenance)
are recommended:
(1)Oil amount check
1. Confirmation of the oil amount in the hook oil tank (other than DDL-
9000B-DS)
Confirm that the tip of the oil amount indicator remains between
the upper and lower engraved marker lines of the oil gauge window.
(2) Cleaning
(1) Remove the needle , presser , and the throat plate .
(2) Using a soft brush or a piece of cloth, remove dust that is clinging to
the feed dog or around the thread trimmer unit .
(3) Let the head section fall down and wipe off contaminants from the
bobbin case and others, using a piece of soft cloth. Also confirm
that there are no flaws.
In addition, wipe off dust and hook oil exhausted to the under-cover
interior around the hook section, using a piece of cloth.
(3)Application of appropriate grease
In ordinary usage, it is unnecessary to replenish the appropriate
grease (JUKI Grease A). Under particularly rigorous operating
conditions, however, periodic replenishment of the appropriate
grease is effective (approximately once every one to two years).
1) Needle bar lower bushing (DDL-9000B-M , B-DS Specification)
(Cautions) This work should be done in the state that the needle
bar and others are installed.
1. Remove the face plate.
2. Remove the greasing screw .
3. Remove the cap of the appropriate grease and enter the feeder
tip in the lubricating hole. Then, replenish the appropriate grease
.
At that time, the grease should be fed until it flows out of the
lubricating hole.
4. Push in the overflowing appropriate grease by means of the
greasing screw.
5. Wipe off the excessive appropriate grease (staying around the
greasing screw).
(Cautions) When a lubricant is newly replenished, operate the
sewing machine for about 10 seconds of idling. A
surplus amount of appropriate grease may be
discharged at that time. Wipe it off then. Repeat this
operation several times and use the sewing machine
regularly after the generation of the excessive
appropriate grease has disappeared.
Part name Part No.
JUKI Grease A 40006323
Info about the appropriate grease
Adjustment Procedure Results of Improper Adjustment
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