Singer FUTURA CE-150 User manual

Service Manual
CE-150
CE-250
CE-350
104 72 85-26
14 Feb 2008

2Singer Furtura III series
INDEX
ESD..............................................................................................................................................................3
Service tools.................................................................................................................................................4
1. Needle bar height ....................................................................................................................................5
2. Needle threader height ............................................................................................................................6
3. Presser foot height and parallelism to the needle plate ...........................................................................8
4. Feed-dog height ......................................................................................................................................9
5. Feed-dog timing (vertical movement)....................................................................................................10
6. Feed timing ( horizontal movement )......................................................................................................11
7. Positioning of pulse motor for feeding - basic point...............................................................................12
8. Feed Balance .........................................................................................................................................13
9. Basic positioning of zigzag step motor ..................................................................................................14
10. Adjustment of needle at center position................................................................................................15
11. Positioning of stopper for needle at right position ................................................................................16
12. Tension of timing belt............................................................................................................................17
13. Needle timing to shuttle........................................................................................................................18
14. Mesh of shuttle gears...........................................................................................................................19
16. Needle clearance to shuttle .................................................................................................................21
17. Retaining bracket for bobbin case........................................................................................................22
18. The lengthwise movement of the feed dog...........................................................................................23
19. Bobbin case thread tension .................................................................................................................24
20. Upper thread tension unit....................................................................................................................25
21. Position of buttonhole sensor lever ......................................................................................................26
22. Tension of motor and pulley belt...........................................................................................................27
23. The needle stop position .....................................................................................................................28
Function mode of sewing machine - thread sensor deactivated. ...............................................................29
Test mode of sewing machine - Apply to model CE-200E, CE-250/350 ....................................................30
Test mode for sewing machine...................................................................................................................31
Test mode for sewing machine with embroidery unit..................................................................................32
Removing face, bottom and base covers ..................................................................................................33
Removing top cover and thread sensor cover............................................................................................34
Removing rear cover .................................................................................................................................34
Removing front cover .................................................................................................................................35
Removing the circuit board cover...............................................................................................................36
Removing control panel assembly..............................................................................................................37
Oiling in Shuttle area and Needle bar.........................................................................................................40
Remove the Hoop carrier cover..................................................................................................................41
Recognizing hoop size ...............................................................................................................................41
Adjustment origin position of embroidery foot along X & Y axis ................................................................42

Singer Furtura III series 3
ESD
ATTENTION!
It is of the utmost importance that precautions are being taken in order to avoid damage of the electronics
by electro static discharges ESD (=Electro Static Discharge). To avoid that these errors arise it is important
to handle loose circuit boards in a controlled way.
Electrostatic charges are caused by:
• When a person is walking (influence) over synthetic tilled or carpeted floor
• When its friction between and separation of two insulating materials.
If this static electricity discharges through electronic components, these may be partially or irreparably
damaged. Electrostatically charged persons represent the greatest danger for components. This can be dis-
sipated by controlled electrostatic discharge.
Always use wrist band when servicing.
Please note that on disposal, this product must be
safely recycled in accordance with relevant
National legislation relating to
electrical/electronic products. If in doubt please
contact your retailer for guidance.
Veuillez noter qu’en cas de destruction, ce produit doit
bénéficier d’un recyclage sécurisé, conforme à la
législation nationale applicable aux produits
électriques/électroniques. En cas de doute, veuillez
contacter votre distributeur agréé.
Bitte beachten Sie, dass hinsichtlich der Entsor-
gung dieses Produkts, vorschriftsmäßig entspre-
chend der gültigen nationalen Gesetzgebung für
elektrische/elektronische Produkte, recycelt
werden muss.Bei Zweifel setzen Sie sich bitte mit
Ihrem Fachhändler in Verbindung.
• All casted parts within our products are marked with name of
material if allowed by size.
• All molded plastic parts within our products are marked with name
of material if allowed by size.
• Innerhalb unserer Produktion werden alle gegossenen Teile mit dem
Materialnamen bezeichnet, wenn es deren Größe erlaubt.
• Innerhalb unserer Produktion werden alle geformten Teile mit dem
Materialnamen bezeichnet, wenn es deren Größe erlaubt.
• Toutes les pièces moulées (en métal) de nos produits sont marquées
du nom du matériau utilisé, quand la taille de la pièce le permet.
• Toutes les pièces moulées (en plastique) de nos produits sont
marquées du nom du matériau utilisé, quand la taille de la pièce le
permet.

4Singer Furtura III series
Service tools
A reasonable requirement in a domestic sewing machine is that it should able to sew all types of fabrics
used in the home. The settings made when assembling and sewing-in the machines are those most suited to
give the best results in the majority of fabrics and fabric combinations. In doing so, consideration has been
given to the requirements of different markets. This does, however, mean that when sewing extreme fabrics,
better results may be obtained in certain cases by altering the settings. It must be pointed out that these
altered settings can cause poorer results on more normal fabrics. How the different standard ratings are
set can be seen from the description under each setting instruction. The following list of setting gauges and
service tools is intended as an instruction about the special service tools needed to servicing this machine.
1. On several different occasions the needle is used as a setting gauge.
The setting ratings are adapted to needle 90. Make sure to use an undamaged needle.
2. Screwdriver Philips 2PH
3. Screwdriver Philips 1PH
4.Gauge for the feed dog lift.
5. Gauge for the needle height - 28.50 mm
6. Distance gauge 0.05-1,00 mm
7. Wrench 7 mm
8. Allen Key (hex driver) : 2 mm
9. Allen Key (hex driver) : 2.5 mm
10 Allen Key (hex driver) : 1.5 mm

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1. Needle bar height
Check
Note: ALWAYS checking the Needle Height before checking the following settings “Needle timing to
shuttle” and ”Feed-dog timing (vertical motion) “
Check
1. Remove needle plate and bobbin case.
2. Select straight stitch (center needle position).
3. Replace needle with the special needle gauge.
4. Bring the needlebar into its lower turning position.
6. The distance between the upper end of the needle and the surface
(B) of the hook ring should be 28.50 (+/- 0.05 mm).
5. Check this by push on the tip (B) of the Special
needle gauge, and it should just touch the upper part
of hook ring(C).
The check is executed with a gauge which is 28.50
mm long.
Adjustment
The setting is executed with a gauge which is 28.50 mm long.
1. Remove face cover
2. bring the needle bar to its highest position, from the front , loosen
set screw (A) and retighten it lightelly.
2. Bring the needle bar to its lower turning position.
3. Move the needle bar until the correct distance is obtained, the tip of needle must be flush with hook
ring.
4. Tighten set screw (A).
5. Check by means of a twin needle that the needle bar is not twisted, it may cause jump
stitches when sewing with a twin needle.
6. Check to see if needle threader operates correctly
NOTE! This setting affects:
2. Needle threader height
5. Feed-dog timing (vertical movement)
12. Needle timing to shuttle
28.50 mm
A
B
S
85005
A

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2. Needle threader height
Check.
1. Insert a new # 70 needle.
2. Set the machine to straight stitching (center needle position).
3. Bring the needlebar to its highest turning position.
4. Go down with the threader hook into the needle eye, the threader hook shall go smoothly into the
needle eye.
Adjustment of threader hook hightways
1. Insert a new # 70 needle.
2. Remove the face cover.
3. Turning the hand wheel by hand to so the needle bar comes to its highest position.
4. Loosen screw (B) of the threader stopper.
5. Go down with the threader hook into the needle eye.
5. Move the threader holder so that the threader hook is on the upper side of the needle eye.
see Fig 1.
6. Tighten the screw (B) . Make sure to attaching the threader stopper onto stopper pin (D).
NOTE! The direction of threader stopper should be facing to the front so it does not hit the needle support
bracket.
Threader stopper
C
B
D
S
85005
B
#90 #80 #70
Fig 1

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Adjustment of threader hook sideways
1. If the sideways position of the hook isn’t correct, adjust the hook position with a small screw driver.
2. Recheck that the needle threader works correctly.

8Singer Furtura III series
3. Presser foot height and parallelism to the needle plate
Check
1. Lower the feed dog, with the feed dog drop mechanism,so it is below the needle plate.
2. Raise the presser foot to its heighest position.
3. The clearance between the needle plate and the presser foot should be 5.6 mm.
4. Lower the presser foot , it should be parallel to the needle plate slot (B).
Adjustment
1. Remove the face cover,
2. Lower the feed dog, with the feed dog drop mechanism, so it is below the needle plate.
3. Raise the presser foot to its heighest position.
4. Loosen the set screw (A) and adjust the presser foot height by moving the presser bar up or down.
5. Tighten the set screw (A) securely
6. Lower the presser foot and check so the presser foot is parallel with the needle plate slot (B).
if not
a. Lift up the presser foot
b. Loosen up set screw (A) and adjust the parallelity of the presser foot, by turn the Presser bar to the left
or to the right.
7. Tighten the set screw (A) securely.
8. Re-check height and parallelity of the presser foot.
5.6 mm
B
A

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4. Feed-dog height
Check
1. Set machine into test mode and select mode 2.
2. Bring the feed dog to its highest position by turning hand wheel.
3. The top of the feed dog ishould now be 0.9 to 1.1 mm above the needle plate.
Adjustment
1. Bring the feed dog to its highest position.
2. Adjust by turning the Allen key screw (A) until a correct feed dog height (0.9-1.1 mm) is obtained.
Turn clockwise : It will be higher
Turn counter clockwise : It will be lower
This Adjustment can be done, without remowning the covers, through the hole (B) on the front cover.
3. Re-check the feed dog height.
0.9-1.1 mm
A
B

10 Singer Furtura III series
5. Feed-dog timing (vertical movement)
Check
Note: Always check “Needle bar height”, “Feed-dog height” before any check is done on ”Feed-dog
Timing”.
1. Set machine at function mode and select straight stitching and maximum stitch length.
2. Turn the hand wheel in the sewing direction and when the feed dog is going down set it so the top ot the
teeth is flush with the surface of needle plate.
3. At this point the needle tip should be flush with the surface of needle plate (+/- 2 mm) see illustrations
below.
Adjustment
NOTE! Remove the covers, but the front cover must be connected to the pc board.
1. To adjust the Feed dog timing (vertical) loosen the 2 set screws (A)on the main shaft (B).
2. Insert a hex driver into one of the screws.
If feed-dog motion too early - Hold the hex screw in position and turn hand wheel towards you.
If feed-dog motion too late - Hold the hex screw in position and turn hand wheel away from you.
3. Tighten screw temporarily and check feed-dog timing (vertical), when the top of feed dog is flush with the
surface of needle plate , the tip of needle must be flush with the surface of needle plate too (+/- 2 mm).
3. Tighten both screws firmelly after the adjustment.
NOTE! After adjustment , be sure to check and/or adjust “Needle timing to shuttle”
A
A
B

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6. Feed timing ( horizontal movement )
Check
1. Set machine at function mode and select straight stitching and maximum stitch length.
2. Set needle to its upper turning position.
3. Turn the hand wheel, when the feed dog starts its movement backwards it should move 0.3 to 0.6 mm,
before the needle start to travel down from its upper turning position.
Adjustment
NOTE! Remove the covers, but the front cover must be connected to the pc board.
1. Set machine at function mode and select straight stitching and maximum stitch length.
2. Brake loose the set screw (A) on the feed eccenter(B).
3. Turn the eccenter.
Turn it clockwise : it will be less movment of the feed dog.
Turn it counter clockwise : it will be more movment of the feed dog.
4. Tighten the set screw (A) on the main shaft (B)
5. Turning hand wheel and set the needle to its upper turning position and in the position just before it start to
travel down.
7. Check so the feed dog movement is in the range of 0.3 to 0.6 mm, before the needle start to travel down
from its upper turning position.
8. If wrong: Re-do from point 2.
9. If ok : Tighten the set screw (A) on the main shaft (B) firmelly.
Needle at upper turning position
0.3-0.6 mm
C
A
A
B
C

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7. Positioning of pulse motor for feeding - basic point
This adjustment should normally only be carried out if the step motor has been replaced.
Origin point positioning for feed is that the motor pinion with cam touches with the stopper pin and the
motor pinion turns from the position above at a designated angle in reverse direction, while feed regula-
tor gear turns for the feed regulator to stop at the the angle of feed ”0”. (This adjustment has been made
at the factory and is not needed for local maintenance/repair.)
Fine adjustment of feed amount: Adjustment is to be made by turning the screw on the motor bracket
support plate below the feed generating unit as shown on the next page.
It is recommended to adjust feed pitch with stretch stitch patterns such as pattern #17.
Note: Feed pitch for all stitch patterns can be adjusted with the screw A only.
It is desirable to adjust feed pitch with most needed stitch pattern.

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8. Feed Balance
*Pay much attention to this adjustment which is very important and critical.
Check of ”Zero” feeding
1. Enter Test mode and select stitch 1 to check “Zero” feed.
2. Place a piece of paper or fabrics under presser foot and run the machine, at this point there should not
be any feeding.
Adjustment of “Zero” feeding
1. Set machine at function mode and select stitch pattern #22
for CE-150 or #10 for CE-250/350.
2. Place a piece of paper or fabrics under presser foot and run
the machine and check to see the feeding direction
3. First loosen up the nut (A) with a 7 mm wrench.
4. Adjust by turning screw (B) in either way until correct
- If the 2 mm Hex screw (B) is turned clockwise, it will feed in
forward direction.
- If the 2 mm Hex screw (B) is turned counter clockwise, it will
feed in reverse direction.
5. Hold the 2 mm Hex screw (B) while tighten the nut (A).
6. Re-check.
Adjustment can be done without removing the front and the rear covers if control panel assay. is removed
before adjustment zero feed.
See secection ”Remove control panel”.
Check of stitch balance
After checking or setting the ”Zero” feeding , the fine tunning of the stich balance has to be done.
1. Turn on the machine, select stitch #17 in normal sewing mode.
2. Thread up the machine.
3. The balance between between forward and reverse feeding shall be such that the needle in the
reverse feeding stitch goes down into the hole of the former stitch (D).
Adjustment of stitch balance
1. If feed pitch is not correct, adjust with the screw (B).
Adjustment can be done without removing the front and the rear covers. See secection ”Remove
control panel”.
2. Turn on the machine in function mode, select stitch #17.
3. Loosen up the nut (A) with a 7 mm wrench.
4. Adjust by moving the motor gear in either direction with 2 mm hex
driver.
- Turn the screw (B) clockwise to adjust reverse stitch (E).
- Turn the screw (B) counter clockwise to adjust forward stitch (F).
Repeat the process until desired feed balance is obtained.
4. Tighten the nut (A) with a 7 mm wrench.
5. Re-check from point 1 in ”check of stitch balance”
A
B
A
B
(E) (F)
(D)

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9. Basic positioning of zigzag step motor
Adjustment
1. Set the lifting cam (A) to its highest lifting position.
2. Set the step motor cogwheel (B) so its calibration wing (C) is against the calibration stop (D).
3. The circle mark (E) must at this point be in the position against the lifting cam (A).
4. Mount the Step motor into the cogwheel (B).
5. Tighten one of set the screws (F) on the Step motor cogwheel (B).
6. Connect the front cover.
7. Enter Test mode and select mode 2, needle should now be in its right position.
8. Loosen up the set screw (F) on the Step motor cogwheel (B).
9. Put a feeler gauge (0.4 mm) between the Step motor cogwheel (B) and the units casting.
10. Turn the Step motor cogwheel (B) so its calibration wing (C) is against the calibration stop (D).
11. Tighten the set screw (F) on the Step motor cogwheel (B).
12. Check so the circle mark (E) is in the position against the lifting cam (A).
13. Turn off the machine and tighten the seconded Set screw on the Step motor cogwheel (B).
14. Check the needle in centre position.
15. Check the
AC
D
E
B
F

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10. Adjustment of needle at center position
Check
1. Set the machine on straight stitching, center position.
2. Insert a new # 90 needle.
3. The needle position should now be in the centre of the middle slots of needle plate, see illustation 1.
Adjustment
1. Remove face cover.
2. Break loose the 2mm hex set screw (A).
3. Turn eccentric screw (B) on needle bar until the needle is in the centre of the middle slots of needle
plate, see illustation 1
4. Tighten the 2 mm hex set screw (A).
B
A

16 Singer Furtura III series
11. Positioning of stopper for needle at right position
Check
1. Front cover must be removed but still connected.
2. Enter Test mode and select mode 2 and the step motor calibration wing (A) should now be against
the calibration stop (B).
3. The distance between stopper (C) and the cam follower (D) should be 0.3 and 0.5 mm.
Adjustment
1. Front cover must be removed but still connected.
2. Enter Test mode and select stitch 2. The nedle should be in its most right position and the step motor
calibration wing (A) should now be against the calibration stop (B).
3. Loosen up the screw (E) and move the stopper (C) untill the distance is 0.3 and 0.5 mm between stop-
per (C) and the cam follower (D).
4. Tighten the screw
0.3-0.5 m
m
E
D
D
B
C

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12. Tension of timing belt
Check
This checking is needed before adjusting “Needle timing to shuttle”.
1. Remove the covers
2. Push on the belt, it should not be to hard or to loose.
- Too weak tension may result in slippage between shuttle gear and lower shaft
gear due to thread jamming, bunching and fabric snagging.
- Too strong tension may result in incorrect operation due to increased machine torque.
Adjustment
1. Loosen two screws(B) on support plate for idler pulley (A)
2. Move the position of idler pulley (A) ontil the correct belt tension is obtained.
3. Tighten the two screws (B).
B
A

18 Singer Furtura III series
13. Needle timing to shuttle
Check
1. Always check “Feed timing (vertical movement)”, “Needle height” and ” Tension of timing belt” before
”Needle timing to shuttle” is checked.
2. Set machine at test mode and select mode 2.
3. Remove needle plate.
4. Insert a new #90 needle in the machine.
5. Set the needle to left position by turning hand
wheel. Raise the needle from its lowest turning posi-
tion slowly and set the point of the shuttle hook so it is
align with the right side of needle.
6. The distance between point below the shuttle hook
and the the upper side of the needle eye should now
be in the range of 0.5-1.2 mm.
Adjustment
1. Always check “Feed timing (vertical movement)” and “Needle height” and ” Tension of timing belt”
before ”Needle timing to hook” is adjusted.
2. Remove bottom cover.
3. Loosen two set screws (B) on lower shafts gear (A).
4. Adjust by moving the needle position with the hand wheel, and the hook position with a Allen key
driver inserted into one of the screws of the lowers shafts gear.
5. Move the position of gear so the distance between point below the shuttle hook and the upper side of
the needle eye is 0.5-1.2 mm.
5. Temporarily tightened one the set screws and check so the distance is 0.5-1.2 mm.
6. Before tighten the screw, check the mesh of hook gears
B
A
0.5 - 1.2
Needle plate
Hook
Point of Hook
Needle Left Position

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14. Mesh of shuttle gears
Check
1. Move the cog wheel with the hand wheel and check play of the gears at 4 positions – at each 90 de-
gree angle
2. At each position - rotate the hook back and forth with the finger tip to check the play
- a play should be found in two or three diffrant positions.
- no play should be found on one position(max two positions).
Adjustment
1. Loosen the set screw (B) on the lower shafts hook gear (A).
2. The play can now be adjusted by moving the lower shafts hook gear (A).
- to the left, the play becomes smaller.
- to the right , the play becomes bigger.
NOTE!When moving the lower shafts hook gear in any direction, the ”Needle timing to shuttle” will
change.
3. Temporarily tightened one of the set screws and re-check ”Needle timing to hook”.
4. When both settings are correct , tighten the two set screws (B) firmelly.
B
A

20 Singer Furtura III series
15.Parallelity of needle bar swing
Check
1. Set machine at test mode and select mode 2 - needle at L/C/R positions.
2. Remove needle plate and bobbin case.
3. Turn the hand wheel and check that the needle clearance to shuttle at both left and right sides of needle
positions is even. See Illustration.
NOTE! If distance left and right sides of needle positions are evan, but the distance between needle and
hook is to close or to wide, re-set ”16. Needle clearance to shuttle”.
Adjustment
1. Remove needle plate, bobbin case and face cover.
2. Set machine at test mode and select mode 2 for needle at L/C/R positions.
3. Loosen the set screw (A) and (B) on the needle bar unit, see illustrated below.
4. Adjust by moving shifting bracket (C).
- If needle touches the shuttle at left side, move the shifting bracket (C) to the right.
- If needle touches the shuttles at right side, move the shifting bracket (C) to the left.
5. Tighten the set screw (A) and (B) firmly
6. Turn the hand wheel and check needle clearance to shuttle at both left and right sides of needle posi-
tions is even.
NOTE! This setting influences”16. Needle clearance to shuttle”
B
A
C
Needle