Changing Procedure To Needle Feed And The Adjustment - JUKI LH-3528 Instruction Manual

6-2. Changing procedure to needle feed and the adjustment

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.
[LH-3528]
2
3
1
C
B
A
4
1
2
6
7
5
8
9
9
5
7
8
6
The procedure is the reverse of "6-. Changing
procedure to bottom feed and the adjustment".
Loosen hinge screw 1 , move needle bar rocking
rod 2 from needle rocking rod fixing base 3 to
needle bar rocking rod arm 4 , and fix it with hinge
screw 1 .
Replace the feed dog and the throat plate with the
components for needle feed.
Loosen setscrews 6 and 9 (2 places) in sprocket
5 . Loosen the setscrews in the order of 9 and 6 .
At this time, remove the setscrew 6 which is put
in screw hole C , and put it in screw hole A which
is located on the opposite side at 180˚.
Turn the pulley by 180˚ without turning the hook
driving shaft, align the flat section of the hook
driving shaft with screw hole A in sprocket 5 ,
and fix with setscrews 6 . It is the standard that
screw No.  8 in hook driving shaft rear bearing
7 aligns with the flat section of the hook driving
shaft.
Then fix screw No. 2 9 which is put in screw hole
B in sprocket 5 as well.
– 26 –