Adjusting Instructions; Setting The Needle Bar Height & Alignment - JUKI 36200UA52 Instructions And Parts List

Instructions stating direction or location, such as right, left, front or rear of the machine are given relative to
the operator's position at the machine unless otherwise noted.
operating direction.
FIG. 2
I D
S T Y L E
U A 5 , 2 U A E 5 , 2 U E 5 , 2
U A K 5 , 2 U H 5 , 2
U X 5 , 2 U Y 5 2
U E 6 , 0 U J 6 , 0 U J E 6 , 0
U M 6 , 0 U X 6 , 0 U Y 6 0
FIG. 3

ADJUSTING INSTRUCTIONS

SETTING THE NEEDLE BAR HEIGHT & ALIGNMENT
Insert the first (left) and fourth needles into the needle head. The
needles for this Class of machine are made with two flats on the front
of the shank. This will enable you to correctly position the needles in
the needle head. Make certain the needle shank is fully inserted and
that the screw is seated firmly on the flat.
To position the needle head square with the throat plate, use the
upper knife or a straight edge to align the needles with the cross
grooves in the throat plate. (See Fig. 2)
Refer to table 1 for the dimension from the fourth (lowest) needle to
the surface of the throat plate and for the number of the needle bar
height gauge.
M E N S O I N F R O M N E
4 T H L ( O W E S ) T B
N E E D L E T O H E
T H R O A T P L A T E G A
S U R F A C E N U
1 7 3 / " 2 1 ( 3 5 . M M ) 2 1 2
/ 1 " 2 1 ( 2 7 . M M ) 2 1 2
TABLE 1
NOTE: Styles 36200UH52 and 36200UM60 have a .050" (1.3mm) step on the right
side of the throat plate. When setting the needle height measure from the left
side or lowest part of the stepped plate.
CAUTION: If the needle head has been replaced it must be torqued to 17 in. lbs.
(20cm/kg). Or until torque bar (21227AR), inserted into cross hole in the needle
bar, bends. It will not seat against the bottom of the needle bar. After tightening,
check for expansion of the needle bar by positioning it up into the lower bushing
hole. If the bar has expanded it will bind in the bushing. The bar must be re-
placed or lapped to reduce the bell shape. Align and set needle bar height as
described above.
Position the needle bar at its highest
E D L E N E E D L E
point of travel. Loosen needle bar clamp
A R H E G I H T
screw (A, FIG.3) & use the specified
G I H T G A U G E
needle bar height gauge (B) to achieve
U G E S T E P
the desired height dimension from the
M B E R M A R K E D
fourth (lowest) needle (C) to the throat
plate surface (D). Tighten clamp screw
(A) and recheck setting. Care must be
2 7 B U 5 . 3 1
taken not to disturb the needle head
alignment while making the adjustment.
Add the two middle needles and the
2 7 D S 5 . 0 0
retainer.
9
The handwheel rotates clockwise in