JUKI MF-7700D Series Engineer's Manual page 15

Adjustment Procedure
1. Loosen setscrews
guide rods , and fix the rods with setscrews
(Caution) 1. Move the lateral position of needle thread guide base
fully to the right of slot.
2. When adjusting the height of needle thread guide rods
, install the rods so that the thread holes are parallel
to the thread holes of silicon container thread guide
so that excessive resistance is not applied to
threads.
2. Adjusting the position of needle thread guide base and silicon
container thread guide
(1) Loosen setscrews
up or down to adjust the height.
(2) Loosen setscrew
guide base .
, adjust the height of respective needle thread
and and move silicon container thread guide
and adjust the lateral position of needle thread
Results of Improper Adjustment
.
– 11 –
o When needle thread guide rod
is raised, needle thread is
loosened.
o When needle thread guide rod
is lowered, needle thread is
tightened.
o When silicon container thread
guide is raised, needle thread
is loosened.
o When silicon container thread
guide is lowered, needle
thread is tightened.
o When needle thread guide base
is moved to the left, needle
thread is loosened.