Pfaff 1246 User Manual 2
1245
1246
INSTRUCTION MANUAL
This instruction manual applies to machines
from the following serial numbers onwards:
# 6 500 124
296-12-19 199/002
Betriebsanleitung engl. 05.12
This Instruction Manual is valid for all models and subclasses listed in the
chapter "Specifi cations".
The adjustment manual for the machines can be downloaded free of
charge from the internet address
www.pfaff-industrial.com/pfaff/de/service/downloads
As an alternative to the internet download the adjustment manual can also be
ordered in book form under part no. 296-12-19 200/002.
The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or
in part, is only permitted with our previous authorization and with written reference to the
source.
PFAFF Industriesysteme
und Maschinen AG
Hans-Geiger-Str. 12 - IG Nord
D-67661 Kaiserslautern
Index
Contents ..................................................................................Page
1 Safety .................................................................................................................................... 5
1.01 Directives ...............................................................................................................................5
1.02 General notes on safety ......................................................................................................... 5
1.03 Safety symbols ......................................................................................................................6
1.04 Important points for the user ................................................................................................. 6
1.05 Operating and specialist personnel ........................................................................................ 7
1.05.01 Operating personnel .............................................................................................................. 7
1.05.02 Specialist personnel ...............................................................................................................7
1.06 Danger warnings .................................................................................................................... 8
2 Proper use............................................................................................................................. 9
3 Specifi cations ..................................................................................................................... 10
3.01 PFAFF 1245, PFAFF 1246 .....................................................................................................10
3.03 Max. number of stitches/min-1 for the PFAFF 1245 ............................................................ 11
3.04 Max. number of stitches/min-1 for the PFAFF 1246 ............................................................ 11
4 Disposal of Machine .......................................................................................................... 12
5 Transportation, packing and storage ................................................................................ 13
5.01 Transportation to customer‘s premises ............................................................................... 13
5.02 Transportation inside the customer‘s premises ................................................................... 13
5.03 Disposal of packing materials ..............................................................................................13
5.04 Storage ................................................................................................................................ 13
6 Explanation of symbols ..................................................................................................... 14
7 Controls .............................................................................................................................. 15
7.01 On/off switch ....................................................................................................................... 15
7.02 Pedals .................................................................................................................................. 15
7.03 Lever for lifting the presser foot .......................................................................................... 16
7.04 Feed regulator / reverse sewing ......................................................................................... 16
7.05 Adjustment nut for the top-feed stroke ............................................................................... 17
8 Installation and commissioning ....................................................................................... 18
8.01 Installation ............................................................................................................................ 18
8.01.01 Adjusting the table-top height .............................................................................................. 18
8.01.02 Table top cutout ................................................................................................................... 19
8.01.03 Mounting the table top ........................................................................................................ 20
8.01.04 Mounting the upper V-belt guard .........................................................................................21
8.01.05 Mounting the bottom V-belt guard ....................................................................................... 21
3
Index
Contents ..................................................................................Page
8.01.06 Fitting the tilt lock ................................................................................................................. 22
8.01.07 Fitting the reel stand ............................................................................................................ 22
8.02 Connecting the plug-in connections and earth cables ......................................................... 23
8.03 Commissioning .................................................................................................................... 24
8.04 Switching the machine on/off ..............................................................................................24
9 Setting up ...........................................................................................................................25
9.01 Inserting the needle ............................................................................................................ 25
9.02 Winding the bobbin thread, regulating the winder tension .................................................. 26
9.03 Removing/Threading the bobbin case .................................................................................. 27
9.04 Threading the bobbin thread and regulating the bobbin thread tension .............................. 27
9.05 Threading needle thread/adjusting needle thread tension on the PFAFF 1245 .............................28
9.06 Threading needle thread/adjusting needle thread tension on the PFAFF 1246 .............................29
10 Care and maintenance ....................................................................................................... 30
10.01 Servicing and maintenance intervals ................................................................................... 30
10.02 Cleaning ............................................................................................................................... 30
10.03 General lubrication ............................................................................................................... 31
10.04 Lubricating the hook ............................................................................................................ 32
10.05 Lubricating the head ............................................................................................................ 32
10.06 Lubricating the top-feed drive excentric ............................................................................... 33
11 Wearing parts ..................................................................................................................... 34
4
Safety
1 Safety
1
.01 Directives
This machine is constructed in accordance with the European regulations contained in the
conformity and manufacturer’s declarations.
In addition to this Instruction Manual, also observe all generally accepted, statutory and
other regulations and legal requirements and all valid environmental protection regulations!
The regionally valid regulations of the social insurance society for occupational accidents or
other supervisory organizations are to be strictly adhered to!
1.02 General notes on safety
● This machine may only be operated by adequately trained operators and only after having
completely read and understood the Instruction Manual!
● All Notes on Safety and Instruction Manuals of the motor manufacturer are to be read be-
fore operating the machine!
● The danger and safety instructions on the machine itself are to be followed!
● This machine may only be used for the purpose for which it is intended and may not be
operated without its safety devices. All safety regulations relevant to its operation are to
be adhered to.
● When exchanging sewing tools (e.g. needle, roller presser, needle plate and bobbin),
when threading the machine, when leaving the machine unattended and during mainte-
nance work, the machine is to be separated from the power supply by switching off the
On/Off switch or by removing the plug from the mains!
● Everyday maintenance work is only to be carried out by appropriately trained personnel!
● Repairs and special maintenance work may only be carried out by qualifi ed service staff
or appropriately trained personnel!
● Work on electrical equipment may only be carried out by appropriately trained personnel!
● Work is not permitted on parts and equipment which are connected to the power supply!
The only exceptions to this rule are found in the regulations EN 50110.
● Modifi cations and alterations to the machine may only be carried out under observance
of all the relevant safety regulations!
● Only spare parts which have been approved by us are to be used for repairs! We express-
ly point out that any replacement parts or accessories which are not supplied by us have
not been tested and approved by us. The installation and/or use of any such products can
lead to negative changes in the structural characteristics of the machine. We are not liable
for any damage which may be caused by non-original parts.
5
Safety
1.03 Safety symbols
Danger!
Points to be observed..
Danger of injury for operating and specialist personnel!
Do not operate without fi nger guard and safety devices.
Before threading, changing bobbin and needle, cleaning
etc. switch off main switch.
I
Caution
1.04 Important points for the user
● This Instruction Manual is an integral part of the machine and must be available to the
operating personnel at all times.
● The Instruction Manual must be read before operating the machine for the fi rst time.
● The operating and specialist personnel is to be instructed as to the safety equipment of
the machine and regarding safe work methods.
● It is the duty of the user to only operate the machine in perfect running order.
● It is the obligation of the user to ensure that none of the safety mechanisms are removed
or deactivated.
● It is the obligation of the user to ensure that only authorized persons operate and work
on the machine.
Further information can be obtained from your PFAFF agent.
6
Safety
1.05 Operating and specialist personnel
1
.05.01 Operating personnel
Operating personnel are persons responsible for the equipping, operating and cleaning of
the machine as well as for taking care of problems arising in the sewing area.
The operating personnel is required to observe the following points and must:
● always observe the Notes on Safety in the Instruction Manual!
● never use any working methods which could adversely affect the safety of the machine!
● not wear loose-fi tting clothing or jewelery such as chains or rings!
● also ensure that only authorized persons have access to the potentially dangerous area
around the machine!
● always immediately report to the person responsible any changes in the machine which
may limit its safety!
1.05.02 Specialist personnel
Specialist personnel are persons with a specialist education in the fi elds of electrics, electro-
nics and mechanics. They are responsible for the lubrication, maintenance, repair and adjust-
ment of the machine.
The specialist personnel is obliged to observe the following points and must:
● always observe the Notes on Safety in the Instruction Manual!
● switch off the On/Off switch before carrying out adjustments or repairs, and ensure that
it cannot be switched on again unintentionally!
● wait until the luminous diode on the control box is no longer blinking or on before begin-
ning adjustment or repair work.
● never work on parts which are still connected to the power supply! Exceptions are ex-
plained in the regulations EN 50110.
● replace the protective coverings and close the electrical control box afer all repairs or
maintenance work!
7
Safety
1.06 Danger warnings
A working area of 1 m must be kept free both in front of and behind the machi-
ne, so that easy access is possible at all times.
Never put your hands or fi ngers in the sewing area during sewing!
Danger of injury by the needle!
While setting or adjusting the machine do not leave any objects on the table nor
in the needle plate area! Objects may be trapped or fl ung out of the machine!
4
5
Fig. 1 - 01
3
7
21
Only operate the machine with covers 1 and 2 closed!
Danger of injury from the rotating hook!
Do not run the machine without fi nger guard 3!
Danger of injury by up and down movement of needle!
Do not run the machine without take-up lever guard 4!
Danger of injury by moving take-up lever!
Do not run the machine without belt guards 5 and 6!
Danger of injury by rotating v-belt!
6
Do not operate the machine without tilt lock 7!
Danger of crushing between sewing head and table!
8
Proper use
2 Proper use
PFAFF 1245
The PFAFF 1245 is a single needle, fl atbed sewing machine with bottom, top and needle
feeds as well as a large vertical hook for sewing lockstitch seams. The machine is designed
for commercial use (industry).
PFAFF 1246
The Pfaff 1246 is a two-needle, fl at bed sewing machine with bottom, top and needle feed
as well as vertical sewing hook for lockstitch seams. The machine is intended for commercial
(industrial) use only.
Any and all uses of this machine which have not been approved of by the
manufacturer are considered to be inappropriate! The manufacturer cannot be
held liable for any damage caused by the inappropriate use of the machine!
The appropriate use of the machine includes the observance of all operational,
adjustment, maintenance and repair measures required by the manufacturer!
9
Specifi cations
3 Specifi cations
3
.01 PFAFF 1245, PFAFF 1246
Stitch type: .........................................................................................................301 (lockstitch))
Needle system: ............................................................................................................. 134 - 35
Needle sizes in 1/100 mm:
Version CN: .................................................................................................................. 110 - 140
Version CN: ................................................................ For processing medium-heavy materials
Max. thread size max. ( Synthetiks ):
Version CN: ......................................................................................................................... 20/3
Max. stitch length:
Version CN: ....................................................................................................................6,0 mm
Version CN 8: .................................................................................................................8,0 mm
Handwheel eff. dia.: .......................................................................................................80 mm
Dimensions of machine:
Length 1245 / 1246: ...............................................................................approx. 530 / 570 mm
Width: ............................................................................................................. approx. 177 mm
Height: ............................................................................................................ approx. 410 mm
◆
Clearance width: ..........................................................................................................265 mm
Clearance height: ......................................................................................................... 115 mm
Fabric clearance (presser foot raised): ........................................................................... 14 mm
Net weight (machine head): .................................................................................approx. 40 kg
Motor data: .................................................................................see motor specifi cation plate
Noise data:
Emission sound level at the workplace at appropriate speed
(Noise measurement in accordance with DIN 45 635-48-A-1, ISO 11204, ISO 3744, ISO 4871)
PFAFF 1245 at a speed of 2300 spm.: ...............................................................LpA = 82 dB(A)
PFAFF 1246 at a speed of 2200 spm.: ...............................................................LpA = 82 dB(A)
◆
Subject to alterations
▲
synthetic, or other sizes of comparable thread types
■
KpA = 2,5 dB
10
Specifi cations
3.03 Max. number of stitches/min-1 for the PFAFF 1245
Top feed lift Max. number of
stitches/min-1 for
stitch lengths up to 6 mm
less than 3,5 mm 2800 2600
from 3,5 to 5,5 mm 2500 2500
from 5,5 to 7,0 mm 2000 2000
3.04 Max. number of stitches/min-1 for the PFAFF 1246
Max. number of
stitches/min-1
for stitch lengths
from 6 mm to
8 mm and
needle gauge of
up to 10 mm
Top feed lift
Max. number of
stitches/min-1
for stitch lengths
up to 6 mm and
needle gauge of up
to 10 mm
Max. number of
stitches/min-1
for stitch lengths
up to 6 mm and
needle gauge of
more than 10 mm
Max. number of
stitches/min-1 for stitch
lengths from 6 mm to 8 mm
Max. number of
stitches/min-1
for stitch lengths
up to 6 mm to
8 mm and
needle gauge of
more than
10 mm
less than
3,5 mm
from 3,5
to
5,5 mm
from 5,5
to
7,0 mm
2700 2500 2500 2300
2400 2200 2400 2100
1900 1700 1900 1600
11
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