12Wearing parts ........................................................................................................... 12 - 1
Safety
1Safety
1.01Directives
1.02General notes on safety
This machine is constructed in accordance with the European regulations contained in the
conformity and manufacturer’s declarations.
In addition to this Instruction Manual, observe also all generally accepted, statutory and
other regulations and legal requirements -including those of the country and all valid environmental protection regulations!
The regionally valid regulations of the social insurance society for occupational accidents or
other supervisory organisations are to be strictly adhered to!
● 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
before 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, presser foot, needle plate, feed dog or
bobbin), when threading the machine, when leaving the machine unattended and during
maintenance 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 qualified service staff
or appropriately trained personnel!
● When servicing or carrying out repairs on pneumatic devices, the machine is to be
removed from the compressed air supply! The only exceptions to this are adjustments
and function checks carried out by appropriately trained personnel!
● Work on electrical equipment may only be carried out by appropriately trained personnel!
1 - 1
● Work is not permitted on parts and equipment which are connected to the power
supply! Exceptions to this are only to be found in the regulations EN 50110.
● Modifications 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
expressly 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 shall not be liable for any damage which may be caused by non-original parts.
1.03Safety symbols
Danger!
Points to be observed.
Danger of injury for operating and specialist personnel!
Safety
Caution
Do not operate without finger guard and safety devices.
Before threading, changing bobbin and needle, cleaning
etc. switch off main switch.
I
1.04Important points for the user
● This Instruction Manual is a component 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 first 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 operator to only operate the machine in perfect running order.
● It is the obligation of the operator to ensure that none of the safety mechanisms are
removed or deactivated.
● It is the obligation of the operator to ensure that only authorized persons operate and
work on the machine.
Further information can be obtained at your PFAFF agent.
1 - 2
Safety
1.05Operating and specialist personnel
1.05.01Operating personnel
Operating personnel are persons responsible for the equipping, operating and cleaning of
the machine as well as taking care of faults arising in the sewing area.
The operating personnel is obliged to observe the following points and must:
● always observe the Notes on Safety in the Instruction Manual!
● never use any working methods which could limit the level of safety in using the
machine!
● not wear loose-fitting clothing or jewellery such as chains or rings!
● also ensure that only authorized persons operate the machine.
● always immediately report to the user any changes in the machine which may limit its
safety!
1.05.02Specialist personnel
Specialist personnel are persons with a specialist education in the fields of electrics,
electronics and mechanics. They are responsible for the lubrication, maintenance, repair and
adjustment 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!
● never work on parts which are still connected to the power supply! Exceptions are
contained only in the regulations EN 50110.
● when servicing or carrying out repairs on pneumatic devices, remove the machine from
the compressed air supply! The only exceptions to this are function checks.
● replace the protective coverings and close the electrical control box after all repairs or
maintenance work!
1 - 3
1.06Danger
A working area of 1 metre is to be kept free both in front of and behind the
machine while it is in operation so that it is always easily accessible.
Never reach into the sewing area while sewing! Danger of injury by the needle!
Never leave objects on the table or in the needle plate area while adjusting the
machine settings! Objects can become trapped or be slung away! Danger of
injury!
On mechanically activated clutch motors without an actuating lock, wait until
the motor has come to a standstill! Danger of injury!
Safety
Fig. 1 - 01
1
2
Do not operate the machine without the take-up lever guard 1!
Danger of injury due to the movement of the take-up lever!
Do not operate the machine without the finger guard 2!
Danger of injury by the moving needle!
1 - 4
Safety
Do not operate the machine
without tilt-back safeguard 3!
Danger of crushing between
upper part and table top!
Fig.1 - 02
3
4
Do not operate the machine
without belt guards 4 and 5!
Danger of injury by the revolving
V-belt!
5
1 - 5
Fig. 1 - 03
2Proper use
PFAFF 1245
The PFAFF 1245 is a single needle, flatbed 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, flat 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.
Proper use
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!
● The proper disposal of machine waste is the responsibility of the customer.
● The materials used on the machines are steel, aluminium, brass and various plastics.
The electrical equipment consists of plastics and copper.
● The machine waste is to be disposed of in accordance with the locally valid
environmental protection regulations. If necessary a specialist is to be commissioned.
Special care is to be taken that parts soiled with lubricants are separately
disposed of in accordance with the locally valid pollution control regulations!
4 - 1
Transport pack aging and storage
5Transport packaging and storage
5.01Transport to the customer’s premises
Within the Federal Republic of Germany, the machine is delivered without packaging.
Machines for export are packaged in a crate or wrapped depending on how they are
transported.
5.02Transport within the customer’s premises
The manufacturer carries no liability for transport within the customer’s premises. Care is
to be taken to transport the machine in an upright position only.
5.03Disposal of the packaging
The packaging of the machine consists of wood, paper, cardboard and VCE fibre. The proper
disposal of the packaging is the responsibility of the customer.
5.04Storage
The machine can be stored for up to 6 months if not in use. During this time it should be
protected from dust and moisture.
For longer storage the individual parts of the machine, especially the moving parts, should
be protected against corrosion e.g. by a film of oil.
5 - 1
5 - 1
Explanation of the symbols
6Explanation of the symbols
In the following section of this Instruction Manual, certain tasks or important pieces of
information are accentuated by symbols.
The symbols used have the following meanings:
Note, information
Cleaning, care
Lubrication, greasing
Servicing, repairing, adjustment, maintenance
(only to be carried out by specialist personnel)
6 - 1
7Controls
7.01On/off switch
Controls
● Turn the machine on and off by switching
the on/of f switch 1 on and off. When the
machine is on, the light in the switch is
also on.
The switch in the illustration can
be found on machines with Quick
motors. When other motors are
used, the switch may not look
the same.
1
Fig. 7 - 01
7.02Pedals (on machines with subclas -910/01)
+ 2
0
+ 1
With the on/off switch on
0 = Machine stop
+1 = Sew
- 1 = Trim thread (on machines with thread
trimmer)
+2 = Raise presserfoot
Fig. 7 - 02
- 1
7 - 1
Controls
7.03Pedal(on machines with automatic presser-foot lifter -910/98)
With the on/off switch on
0 = Machine stop
+1 = Sew
Fig. 7 - 03
- 1
0
+ 1
- 2
- 1 = Raise presserfoot
- 2 = Trim thread (on machines with thread
trimmer)
7.04Key on the machine head (for machines with backtacking mechanism -911/97)
Fig. 7 - 04
● Switch to reverse sewing by pressing
key 1 while sewing.
1
7 - 2
7.05Lever for lifting the presser foot
1
Controls
● The sewing foot can be lifted by raising
lever 1.
Fig. 7 - 05
7.06Feed regulator / reverse sewing
R
● Adjust the stitch length by turning the
knurled nut 1 accordingly.
Reverse sewing
● Press knurled nut 1 upwards as far as
possible (position „R“).
Fig. 7 - 06
1
7 - 3
Controls
7.07 Feed regulator (on machines with backtacking mechanism -911/97)
You can set the length of the reverse stitch
2
1
as large as is required, independent of the
forward stitch.
● The forward stitch is set with knurled
screw 1 and the re v erse stitch with
knurled screw 2.
The options for setting the
automatic start and end bartacks
are to be found in the instruction
manual of the motor.
Fig. 7 - 07
7.08Adjustment nut for the top-feed stroke
1
2
Turn the machine off!
● Open cover 1 on the back of the
mac hine, loosen screw 2 and move as
required.
7 - 4
Fig. 7 - 08
Mounting and commissioning the machine
8Mounting and commissioning the machine
The machine must only be mounted and commissioned by qualified personnel!
All relevant safety regulations are to be observed!
If the machine is delivered without a table, it must be ensured that the frame
and the table top which you intend to use can hold the weight of the machine
and the motor, even while sewing.
8.01Mounting
The necessary electricity and compressed air supplies must be available at the machine’s
location (see specifications).
A stable and horizontal surface as well as sufficient illumination at the machine’s location.
Due to reasons of packaging, the table top is lowered for transport. The
following is a description of how to adjust the height of the table top.
8.01.01Adjusting the table-top height
1
Fig. 8 - 01
3
1
2
● Loosen screws 1 and 2.
● Set the desired table-top height and tighten screws 1 well.
● Adjust the position of the right pedal so that you can operate it comfortably and tighten
screw 2.
● The setting of the left pedal can be adjusted with chain 3. (This adjustment is not
necessary on machines with an automatic presser-foot lifter)
8 - 1
Mounting and commissioning the machine
8.01.02Adjusting the V-belt tension
● Loosen nuts 1.
● Tighten the V-belt with belt take-up
● Tighten nuts 1.
2 cm
1
2
hanger 2.
Fig. 8 - 02
Fig. 8 - 02 shows a Quick motor. If another motor is used, proceed as described
in the motor’s instruction manual.
8.01.03Mounting the upper V-belt guard
1
3
2
If a large balance wheel is used,
the corner 1 of the belt guard 3
must be broken out.
● Screw position stop 2 to the belt guard
section 3.
● Attach belt guard section 3.
● Attach belt guard section 4.
8 - 2
4
Fig. 8 - 03
Mounting and commissioning the machine
8.01.04Mounting the lower V-belt guard
● Align belt-guard 7 in such a way that both
the motor pulley and the V-belt run freely.
● Tighten screws 8.
8
7
8
Fig. 8 - 04
Fig. 8 - 04 shows a Quick motor. If another motor is used, proceed as described
in the motor’s instruction manual.
8.01.05Mounting tilt-over safeguard
2
● Screw-mount tilt-over safeguard 1
included in the accessories with screw 2.
Do not operate the machine
without tilt-over safeguard 1!
Danger of crushing between
upper part and table top!
Fig. 8 - 06
1
8 - 3
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