– 49 –
[9000B-SS, B-DS, B-M
]
The distance is 0.5mm between the knife thread guide
and the blade
tip of the counter knife
.
In this case, the distance is 4mm between the needle center and the
blade tip of the counter knife
.
The blade tip of the counter knife
is located 0.6mm above the mounting
face.
[9000B-SH]
The distance is 6mm between the needle center and the blade tip of the
counter knife
.
(Cautions) 1. The blade sharpness is changed when the blade
mounting angle is changed for the blade tip of the
counter knife
. The sharpness becomes best when
the blade section of the counter knife
coincides
exactly with that of the moving knife
.
2. When the counter knife
is adjusted or replaced,
examine the blade sharpness, without fail. Also
adjust the mounting angle of the counter knife
.
Loosen two the counter knife setscrews
and adjust the position of
the counter knife
.
(Cautions) The window (hole section) of the knife thread guide
shall be adjusted so that the needle enters the center
of the hole section.
When the counter knife
is adjusted
to the right:
o The bobbin and needle thread
drawing length becomes longer
than the standard by the distance
of knife movement and the length
of the needle thread remaining at
the needle tip becomes longer.
(There is a time lag in thread
trimming.)
When the counter knife
is adjusted
to the left:
o The bobbin and needle thread
drawing length becomes shorter
than the standard by the distance
of knife movement and the length
of the needle thread remaining at
the needle tip becomes shorter.
(There is a time reduction in thread
trimming.)
Adjustment Procedure
Results of Improper Adjustment
Содержание DDL-9000B-DS
Страница 14: ... 10 4 Feed locus and phase 1 Timing standard 2 Timing fast 3 Timing slow Standard Adjustment ...
Страница 24: ... 20 7 Lubrication 4 Cleaning of the oil filter DDL 9000B S and DDL 9000B M only Standard Adjustment ...
Страница 32: ... 28 8 Adjustment of the amount of feeding 4 Optional switch Standard Adjustment ...
Страница 54: ... 50 11 Thread trimming unit 6 Adjustment of rise of the second thread tension disc Standard Adjustment ...
Страница 58: ... 54 11 Thread trimming unit 8 Replacement of the moving knife Standard Adjustment ...
Страница 64: ... 60 11 Thread trimming unit 11 Adjustment of the driven part stopper Standard Adjustment 0 3mm 1mm ...
Страница 70: ... 66 12 Adjustment of the wiper DDL 9000B WB 2mm 1mm Standard Adjustment ...
Страница 112: ...MEMO ...