Adler 274, 271 Operating Instructions
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Preface and General Safety Notes
Part 1: Operat ing Instruc tions Cl. 271 to 274
1. Product Description
1.1 Sho rt Description an d Pro per U se . . . . . . . . . . . . . . . . . . . . . 5
1.2 Technic al Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Opt iona l Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2. Machine Elements and their Functions
2.1 Elements on the Machine H ead . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Elements on the Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3. Operating
3.1 Needles, Threads and Thread Tension . . . . . . . . . . . . . . . . . . . 14
3.2 Spo olin g the Bobbin Thread . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Replacing the Bobbin and Setting the Looper Thread Tension . . . . . . 15
3.4 T hreadin g the Nee dle Th read . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5 Reg ulating the Needl e Thr ead Tension . . . . . . . . . . . . . . . . . . . 17
3.6 Thread Regu lator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4. Maintenance
4.1 Cleaning and Che cking . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2 Lub ricat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Following Patents and Registered Utility Models apply:
Status March 1994
DE - 41 15 520 DE - 87 05 550
DE - 41 05 563 JP - 1 933 346
JP - HEI - 4 - 32044 DE - 41 38 402
DE - 40 04 892 JP - HEI - 4 - 312432
1. Product Description
1.1 Short Description and Proper Use
The 271 to 274 a re flat single nee dl e-double saddl e stitch
sewing machines with thread trimming devices for
straight seams to stitch type 301.
Properly employed the machine may only be used for
sewing materials of textile fibre and garm ent leather.
271 with skipping bottom feed.
The machine has an automatic central oil wick lubrication
with oil reservoir as well as a seperate automatic hook
lubrication, also with oil reservoir. The oil levels are
visible through inspection glasses.
Through equippi ng with thread regulators the same
sub-classes, wi th appropriate choice of sewing device
and needle, can be used for sewing thick as well as thin
material.
The operation of the tension activation, the thread
trimming, the automatic bartack and the pressure foot lift
occur electro-magnetically. No compressed air is requi red
with the exception of classes 273, 274 and 272-740142.
For further te chnical characteri stics and equipment for
each sub-class see under 1. 2 Technical Data.
272 as 271, bu t with additio nal needle tran sport.
273 as 271, but with additiona l i ntermittent rol l er top feed.
The transport distance of the roller top feed is a max.
7mm. With an ad j us tment wheel at the front of the
machine arm it can be given a setting differing from the
bottom feed.
It has stable rpm up to a maximum number of stitches of
5500 stitches/min. This means constant stitch lengths as
well as smooth and unshifted seams even with quick rpm
changes.
Automatic lifting of the carrier roller by change over to
transport to the rear(bartack).
274 as 273, bu t with additio nal needle tran sport.
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1.2 Technische Data
Sub-classes
max.
from
factory
mm
271-140041 5500 4800 4mm x
271-140042 5500 4800 4mm x x x
271-240042 5500 4800 4mm x x x x
272-140041 5000 4800 4mm x
272-140042 5000 4800 4mm x x x
272-160062* 5000 4000 6mm x x x
272-640141 5000 4800 4mm x x
272-640142 5000 4800 4mm x x x x
272-740142 5000 4800 4mm x x x x
273-140042 5500 4800 4mm x x x
274-140042 5000 4800 4mm x x x
* Extra-large shuttle = 70% greater capacity of the underthread spool than with the
standard hook
To 1: Max. sti tch length for each sub-class
To 2: Thread trimming for needle and bobbin thread
To 3: Electro-magnetic automatic bartack. I t is switched via the pedal and executes
the followi ng functions: l o wering the pres sure foot, seam beginning and seam
end bartack, needle and bobbin thread trimming, raising the pressure foot.
To 4: Keys on the arm head:
- Needle high - low
- Bartack on - Bartack funct ion switched off at the contr o l panel
- Bartack suppressed - Bartac k function swit ched on at the control panel
- Bartack within the seam
To 5: Edge cutter right, next to the needle. Switched on and off with the hHand lever
or, as optional equipment, electro-pneumatically via key. Depending on the
sewing unit (E -no.), the cutt i ng interval is 3.5 ; 5.0 ; 8.0 or 10mm . Special
sewing devic es are required for graduated cutting. The knife stroke is 5.5mm .
To 6: Edge cutter, but with seperate electric drive. Two cutting rpms can be switched
in.
To 7: Edge cutter, which cuts into the material edge crosswise during sewing, e.g. for
tension-free turning over of round neck openings, collars, arm holes, etc. The
cut occurs after every 6 stitches. On request after 4 stitches. The cut depth has
a max. of 15mm. It is adjust able up to abou t 1mm to the seam.
Stitches/min 1 2 3 4 5 6 7
Needle system: 134, 797 or Sy 1955-01
clearance under the pressu re foot
When raised: 8.0mm by 271 and 273
9.5mm by 272 and 274
When sewing: 8.0mm
Operating press ure: 6 bar
Air consumption: 0.02 Nl per wor k c yc l e by 273 and 274
0.1 Nl per work cycle by 272-740142
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Noise Level Lc: Work station specific emmission value to DIN
45635-48-A-1-KL2 by stitch length 3.2mm
271-140041 and 140042 with stitches 4800/min. = 80
dB(A)
272-140041 and 140042 with stitches 4800/min. =
82dB(A)
272-140041 and 140042 with stitches 4500/min. =
80dB(A)
1.3 Optional Equipment
App. 301 Covering hood for the machine head
Z 120 1801 Electro-magn et i c thread wiper for 271 and 272
Z 120 1851 Electro-magn et i c thread wiper for 273 and 274
Z 133 371 Reflected li ght barrier for automatic sewing stop at
Z 116 6741 Electro-pneum atic device for al ternating sewi ng with
Z 124 401 Electro-pneumatic operation for on/off switching of
Z 145 1 Graduated ed ge cutting (finger version for lightest
Z 145-101 Graduated edge cutting (2 knife version for m edium
722 2041 Container for cutting wa st e for connecti on to the
999 260029 for 3-phase current 380-400V+N, 50Hz
999 260030 for 3-phase current 220-230V, 60Hz
999 260031 for 3-phase current 415-440V, 50Hz
933 5736 Toothed steel r ol l er, 9mm wide for 273 and 274 roller
273 1041 u. 27 4 1141 Height setting for the pressure foot with har d to
570 1833 Filter regulator for the compressed air connection
271 661 Parts set, knee lever for pressure foot lift by
271 1671 Parts set, hand lever for seam bartacking for
sub-classes -140000 and -160000
the material end with follow-up functions. For motors
with external control panel V730 or DB5.
two differently set stitch lengths and two differently
set needle thread tensions. Normal seam and seam
with thread drawing (bast i ng stitches). Pa rtial
strengthened tension (Seam thickening) and
ornamental seams.
the edge cutters via key for 272-640142.
materials). In conjunction with the sewing unit 272/E
111 for widths of cut of 4.5 and 7mm.
heavy material). In conjunction with sewing unit
272/E 112 for widths of cut of 3.5 and 6,5mm.
in-house va cuum system. If t his is not available then
the appropri ate centrifugal blower is to be used.
transport
transport material, e.g. velvet.
machines with automatic bartacker.
machines with automatic bartacker.
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2. Machine Elements and their Functions
2.1 Elements on the Machine Head
Element Function
1Screw – Regulating of the pressure fo ot pressure. The
2Hand lever – Turning the edge cutter 10 on and off. The position
3Spooling devi ce – See under Sect i on 3.2 Spooling of t he Bobbin
4Control panel – See the motor manufacturer’s instructions.
5Oil reservoir – The oil l evel should not be al l owed to drop bel ow
6Adjustment wheel – Setting the stitch length for reverse sewing (with
7Adjustment wheel – Setting the stitch length for forwardsewing (with
8Rest – For tilting the m achine head to the back (not on
9Needle thre ad tension – Turn in direction + = h i gher needle thre ad tension
10Edge cutte r – Function see following page.
11Needle – System 134, 797 or Sy 1955-01
Setting of the screw is to be f ixed.
of the hand lever is variablly adjustable.
Thread.
"MIN". When necessary fill with ESSO SP-NK10 oil
to "MAX".
sub-classes -....41 via hand lever).
sub-classes -....41 via hand lever).
classes 273 and 274).
Turn in direction - = looser needle thread tension
- Risk of Injury! -
Before replacing the needle it is essential to turn the main
switch off.
12Locking button – Lock the pressure foot in the raised position
13Hand lever – Setting the carrier roller up. It is swung out of the
14Adjustment wheel – Transport length for the top feed roller
15Roller to p feed – Function se e following page
work area. Sewing only with bottom feed
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