ELNA Cover Pro 2000CPX Troubleshooting guide

SERVICE MANUAL
&
PARTS LIST
MODEL: Cover Pro 2000CPX

Replacing the External Parts
1. Belt Cover........................................................................................ 1
2. Looper Cover................................................................................... 2
3. Rear Cover ...................................................................................... 3
4. Front Cover...................................................................................... 4
5. Free Arm Cover ............................................................................... 5
Mechanical Adjustment
1. Presser Bar Height .......................................................................... 6
2. Foot Pressure .................................................................................. 7
3. Needle Bar Heihgt ........................................................................... 8
4. Feed Dog Height ............................................................................. 9
5. Looper Height................................................................................ 10
6. Looper Postion .............................................................................. 11
7. Needle to Looper Timing ............................................................... 12
8. Clearance between the Needle and Looper.................................. 13
9. Back Needle Guard Height............................................................ 14
10. Needle to Feed Dogs Timing ......................................................... 15
11. Stitch Length ................................................................................. 16
12. Differential Feed Ratio................................................................... 17
13. Thread Tension.............................................................................. 18
14. Motor ............................................................................................. 19
Parts List ........................................................................................... 20-37
Table of Contents

1
Replacing the External Parts
1. Belt Cover
To remove:
zRemove the setscrews qand remove the belt
cover
w.
To attach:
xFollow the above procedures in reverse.
q
q
w

2
2. Looper Cover
To remove:
zRemove the setscrews qand remove the
looper cover w(with a hinge attached).
To attach:
xFollow the above procedures in reverse.
q
w

3
3. Rear Cover
To remove:
zRaise the handle qand remove the setscrews w, e
and
r. Remove the rear cover t.
To attach:
xFollow the above procedures in reverse.
q
w
e
r
t

4
4. Front Cover
To remove:
zRemove the face plate, belt cover, looper cover and
rear cover.
xRemove the setscrews q, w, eand r.
Remove the front cover t.
To attach:
cFollow the above procedures in reverse.
q
e
rt
w

5
5. Free Arm Cover
To remove:
zRemove the setscrews qand the free arm cover w.
To attach:
xFollow the above procedures in reverse.
q
w

6
Mechanical Adjustment
1. Presser Bar Height
The distance between the bottom of the presser foot in
up position and the needle plate should be 4.7–5.3 mm.
zRemove the face plate and front cover.
xRemove the setscrews q, and lamp set plate w.
cRaise the presser foot and loosen the setscrew e.
Move the presser bar rup or down to set the
presser foot height to 5 mm.
vTighten the setscrew efirmly.
NOTE:
Make sure that the presser foot should be parallel to
the feed dog slots tin the needle plate and should not
interfare with the needles.
bAttach the lamp set plate, front cover and face plate.
w
e
r
t
q
4.7–5.3 mm
Should be
parallel.
Should not interfare

7
2. Foot Pressure
The pressure adjusting screw should protrude 10 mm
from the top of the machine.
zTurn the adjusting screw qto set its height at 10 mm.
10 mm
q

8
3. Needle Bar Height
The distance between the point of the left needle
(Schmetz ELx705, size 80/12) and the upper surface of
the needle plate should be 7.8–8.2 mm when the needle
bar is at the highest position.
zRemove the face plate and front cover.
xRemove the setscrews qand lamp set plate w.
cReplace the left needle with Schmetz ELx705, size
80/12 needle e.
vTurn the handwheel toward you to raise the needle
bar to the highest position.
bLoosen the setscrew rand move the needle bar t
up or down to adjust the distance at 8.0 mm.
NOTE:
Be sure not to rotate the needle bar when adjusting the
needle bar height.
nTighten the setscrew rand attach the lamp set
plate.
mAttach the face plate and front cover.
e
r
7.8–8.2 mm
t
w
q