Singer 2700 Series User manual

359109-000 AGO/03
27002700
Service Manual
Household Sewing
Machine
Series
THE SINGER COMPANY
2003 SINGER (SHANGHAI)
SEWING MACHINE CO., LTD.
ALL RIGHTS RESERVED
Registered Trademark “THE SINGER COMPANY LTD.” Printed In China

2700 - Revisions Records
Revision Description Approval
and date
01
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Rev. n . o
Service Manual
359109-000 AGO/03

This manual is designed for use by trained and qualified service
persons.
The SINGER COMPANY will not be responsible for any parts
requiring replacement due to natural wear or to the abuse or
negligence of its use or in the event the machine is serviced by
other than a trained and qualified service person or even if
replaced parts do not meet applicable specifications.
Service Manual
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Scope
Machine Description
Tool requirements
This service manual describes all of the servicing procedures,including all adjustments and parts
removal and replacement for the 2700 class machine. Additional information covering any
production changes, improvements or changes to parts will be made by issuing Singer service/parts
bulletins.
Tubular bed.
Lightweight aluminium casting.
Apollo sewing system.
Electronic triac foot speed controller.
New "FT" fabric feed system.
Vertical needle profile.
Motor concealed in bed.
Horizontal spool pin.
Touch and wind declutching hand wheel.
Bobbin capacity of 41 m (45 yds) minimum.
Universal presser bar pressure control.
Maximum stitch lenght 5 mm (5 s.p.i.).
Self-threading take-up lever.
Push button instant reverse.
One-way needle insertion.
Direct pattern selection.
Drop feed system (Only for models 2722, 2724,2730 and 2732).
Four step buttonholer.
Automatic needle threading (Only for models 2730 and 2732).
Bed length 380 mm. (14.96 inches) without cloth plate.
Bed width 185 mm. (7.28 inches).
Bed height 83 mm. (3.27 inches).
Clearance under free arm 25,4 mm. (1.0 inch).
Free arm circunference 264 mm. (10.39 inches).
Overall height 310 mm. (12.20 inches).
Weight 7,6 kg. (16,6 lbs).
1/8" screwdriver
3/16" screwdriver
1/4" screwdriver
Philips screwdriver
8 mm. open end wrench
10 mm. open end wrench
Pliers
Wire-cutter pliers
Feeler gauge GM8092
Feeler gauge set.
1,5 mm Allen wrench
Straight tips external ring pliers (tip dia. 0,9 mm)
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Extralong screwdriver (5,0 mm dia. x 380 mm long)
Service Manual
General Information

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Parts removals and replacements.........................................................
Face plate.....................................................................................
Light bulb replacement.....................................................................
Bed bottomcover.............................................................................
Rear cover.....................................................................................
Front cover.....................................................................................
Needle bar.....................................................................................
Take-up lever assembly and needle bar connecting link..............................
Handwheel......................................................................................
Arm shaft and horizontal bevel gear.......................................................
assembly .
Thread tension assembly....................................................................
Motor and motor belt........................................................................
Hook...........................................................................................
Feed lifting lever assembly.................................................................
Feed rock shaft assembly..................................................................
Feed forked connection....................................................................
Vertical shaft bevel gear....................................................................
Vertical shaft.................................................................................
Stitch lenght and buttonhole control assembly ......................................
Arm top cover................................................................................
Face plate and lamp mounting bracket..................................................
Needle threader assembly (for model 2730/2732) .....................................
Needle bar vibrating bracket assembly ..................................................
Presser bar assembly.........................................................................
Cam controlled feed follower ..............................................................
Needle position lever ........................................................................
Cam controlled feed mechanism ..........................................................
Disk stack shaft gear and bracket assembly ............................................
Zigzag stitch width bracket assembly ...................................................
Disc follower quick out lever(For models 2718/2724/2730)...........................
Disc follower ...................................................................................
Pattern selector .................................................................
Table of Contents
Section I
06
07-08
07-08
09-10
11-12
13-14
15-16
17-18
19-20
21-22
23-24
25-26
27-28
29-30
31-32
31-32
33-34
35-36
37-38
39-40
39-40
41-42
43-46
47-48
49-50
51-52
53-56
57-58
59-60
61-62
63-64
65-66
PAGE
Service Manual
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Sequential order of adjustment procedures ...............................................
Vertical shaft end play .........................................................................
Bevel gear mesh and arm shaft end play ..................................................
Disc follower height adjustment ...........................................................
Disc and disc follower clearance (For models 2718/24/30) ...........................
Disc stack radial play (For models 2718/24/30) .......................................
Disc and disc follower clearance (For models 2712/22/32) ...........................
Disc stack radial play (For models 2712/22/32) .......................................
Take-up lever and needle bar connecting link lost motion .............................
Needle bar bearings ...........................................................................
Needle bar height ..............................................................................
Needle bar pendulum timing ...............................................................
Zig-zag centralizing procedure ..............................................................
Centralizing center needle position........................................................
Centralizing left-right needle positions .................................................
Needle location in the needle plate slot ..................................................
Needle to hook relationship ..................................................................
Zig-zag lever bight stop in the straight stitch position .................................
Maximum width zig-zag lever bight stop .................................................
Needle bar safety bight stop (left side) ..................................................
Alignment of knobs with panel graphics ...................................................
Presser bar height and alignment ...........................................................
Hook drive belt tension .....................................................................
Hook drive belt retainer bracket .........................................................
Hook timing (hook and needle synchronism) ............................................
Bobbin case position finger .................................................................
Bobbin case position plate .................................................................
Bobbin case clearance .......................................................................
Needle Thread tension .......................................................................
Bobbin winder .................................................................................
Feed rock shaft end play ....................................................................
Feed dog centralization .....................................................................
Feed dog height ..............................................................................
Feed dog throw ...............................................................................
Stitch lenght regulator spring tension ....................................................
Motor belt tension ...........................................................................
Flexi stitch zeroing (accurate adjustment of the stitches) ..........................
Zero feed .....................................................................................
Buttonholer cutting space ...................................................................
Needle threader (For models 2730/2732)...............................................
Lubrication....................................................................................
67
68-69
70-71
72-73
74-75
74-75
76-77
78-79
80-81
82-83
84-85
86-87
88-89
90-91
92-93
94-95
96-97
98-99
100-101
102-103
104-105
106-107
108-109
108-109
110-111
112-113
112-113
114-115
116-117
118-119
120-121
122-123
122-123
124-125
126-127
128-129
130-131
132-133
134-135
136-137
138-141
PAGE
Service Manual
Table of Contents
Section 2
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Section 1
Parts Removal and
Replacement
Service Manual
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B
A
C
Service Manual
Light Bulb Replacement
Face Plate Cover
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Removal:
Replacement:
Removal:
Replacement:
1. Raise presser foot.
2. Remove face plate cover screw (A).
3. Remove face plate cover (B) by pulling it down and laterally and then out of the
machine.
1. Replacement of the face plate cover is the same as described above, but in a reverse
order. Be sure the presser foot is in the raised position.
Turn the machine off and remove plug from outlet.
1. Remove face plate cover.
2. Push lamp (C) up and turn it clockwise.
3. The spring inside the socket, will push the lamp down and out the socket.
1. After inserting the lamp pins into the socket slots, push the bulb lamp (C) up and then
turn it gently counterclockwise.
Face Plate Cover
Service Manual
Light Bulb Replacement
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Service Manual
C
A
B
Arm Top Cover
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Removal:
Replacement:
1. Place bobbin winder in the “OFF” position.
2. Remove tree arm top cover srews (A), (B) and (C).
3. Remove the arm top cover by pulling it straight upwards.
1. Replacement is the same as removal in reverse order.
Arm Top Cover
Service Manual
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Service Manual
A
B
C
Bed bottom Cover
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Removal:
Replacement:
1.
1.
Remove the free-arm extension table.
2. Remove the three screws (A).
3. Remove 8 mm hex nut (B).
3. Remove bed bottom cover (C).
Replacement of this bed bottom cover is the same as described above, but in a
reverse order.
Bed bottom Cover
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Service Manual
C
AA
B
D
Rear Cover
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Service Manual
Removal:
Replacement:
1.
1.
Remove the free-arm extension table, the face plate cover and arm top cover.
2. Turn the machine down and remove bottom bed cover.
3. Loose screws (A) and screw (C) by turning them 3 times.
4. Remove the 4 screws (B).
5. There are tongues in this cover, gripping it to the front cover. So, first of all, dislodge
tongues (D) located on the needle plate area.
6. Remove the cover by pulling it straigh upwards.
Replacement of this rear cover the same way as described above, but in a reverse
order.
Make sure the rear cover matches the front cover and mainly that the tongues located at
the needle plate area, are properly inserted.
Note:
Rear Cover
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Service Manual
DE
For2718/2724/2730
For2712/2722/2732
B
B
B
B
Front Cover
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C
F
G
H
A
A

Service Manual
Removal:
Replacement
1.
1.
Remove the free-arm extension table, face plate and arm top cover, the bottom
bed cover and rear cover.
2. Move all the levers to it’s center positions and remove the knobs (B) by pulling it straight
frontward (2 knobs for models 2718, 2724 and 2730, and 3 knobs for models 2712, 2722
and 2732).
3. Loose the two screws (A), by turning them 3 times.
4. Turn the machine down placing the front cover upwards.
5. Loose the two screws (C), by turning them 2 times.
6. Remove the cushion and screw (D).
7. Remove from the front cover the switch (F) pushing it straight outwards. Then, remove
the switch frame (G) openning it throught the groove (H). Return the switch (F) into the
machine again.
8. Remove the front cover (E) by pulling it straight upwards.
Replacement of this cover the same way as described above, but in a reverse
order.
Front Cover
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Service Manual
AA
C
B
D
E
F
Needle Bar
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Service Manual
Removal:
Replacement:
1. Remove the face plate and arm top cover.
2. Remove needle by loosing the screw (B). Turn handwheel to bring the needle bar to its
position. Loose screw (A) together with the thread guide and then, remove the entire
needle clamp body. Remove also the needle bar gib (C).
3. Loose needle threader stop screw (D).(Models 2730 and 2732).
4. Loosen needle bar connecting stud screw (E).
5. Draw needle bar (F) up and out of the machine.
Replacement the needle bar the same way as described above, but in a reverse order.
2- Adjust needle bar height (see pages 84-85).
1.
Needle Bar
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D
Service Manual
C
A
E
C
B
Face Plate and Lamp Mounting Bracket
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