ELNA eXpressive 970 Service Manual page 25

Needle bar height
gauge
Needle bar
holder screw
Thickness gauge
(1.2 mm)
Tension dial
Tension dial
Tension unit cover
Tension unit cover
Needle rest (view from the side
of the moving head)
Hole in the
needle bar
Cap
screw
Setscrew
(B)
Presser foot
Arch
Arch
Step 3: Adjusting the Height of the Needle Bar
and Presser Foot
12 Remove the bobbin case.
13 Hold the needle bar holder and push the needle bar
down until it clicks.
14 Lower the needle bar to the lowest position by turning
the hand wheel.
15 Insert the needle bar height gauge into the hook.
16 Knock on the top of the needle bar gently until the tip
of the needle contact the gauge.
Turn the gauge to find if the needle reaches the gauge.
Set the direction of the needle bar so the hole in the
needle bar faces directly the front.
17 Tighten the needle bar holder screw securely.
Note: Check if the needle bar is securely fixed by
turning the cap screw clockwise.
18 Loosen the setscrew (B).
19 Insert the 1.2 mm thickness gauge between the
presser foot and needle plate. Press the presser foot
down against the gauge.
20 Tighten the setscrew (B) securely.
21 Remove the needle bar height gauge.
22 Turn the hand wheel to match the alignment line on it
with the joint of the right and left covers (the upper
shaft will be set at 270 degrees).
Alignment line
* To replace the spring and washer on other needle
bars, follow the above steps (select the relevant needle
bar in the Needle Change adjusting window).
23 Attach the tension control unit and thread catcher panel
(head cover). Lower thread guide plate and tension
unit cover.
Note: Be sure not to get wires caught between covers.
Adjust the position of the tension unit cover so
the arch of the cover aligns with the tension
dials.
Step 4: Test Sewing
Insert the test pattern card into the RCS unit and sew the
test pattern.
Use a 120 deniers rayon thread or equivalent for needle
and a #120 cotton or polyester thread for bobbin.
24
Joint of the right and left
covers