This manual for the 512/532 sewing machines has been compiled with the
utmost care. It contains information and notes in order to make long-term
and reliable operation possible.
1.1Scope of the service manual
This manual describes the setting and maintenance work for sewing machines 512/532. It applies to all submodels.
The intended use and set-up is described in the operating manual.
1.2Representation conventions – symbols and characters
Various information in this manual is represented or highlighted by the following characters in order to facilitate easy and quick understanding:
Correct setting
Indicates proper setting.
Malfunctions
Specifies the faults that can occur due to an incorrect setting.
Steps to be performed when operating the machine (sewing and
equipping)
Steps to be performed for servicing, maintenance, and installation
Steps to be performed via the software control panel
The individual steps are numbered:
1.First step
2. Second step
The sequence of the steps must always be followed.
Lists are identified by bullet points.
Result of performing an operation
Change to the machine or in the display.
Service Instructions 512-211-01/532-211-01 - 00.0 - 06/20165
Important
Special attention must be paid to this point when performing a step.
Information
Additional information, e.g. on alternative operating possibilities.
Observe order
Specifies the work to be performed before or after a setting.
References
Reference to another section in the manual.
SafetyImportant warnings for the machine operator are specially designated.
Since safety is of particular importance, hazard symbols, levels of danger
and their signal words are described separately in 3 Safety information.
About this service manual
OrientationIf the figure is unclear, indications of "right" and "left" are always from the
operator's point of view.
1.3Other documents
This equipment includes components from other manufacturers. Each
manufacturer has performed a hazard assessment for these purchased
parts and confirmed their design compliance with applicable European
and national regulations. The proper use of these components is described in each manufacturer's manual.
1.4Liability
All information in this operating manual was compiled with consideration
to the state of the art, and applicable standards and regulations.
The manufacturer cannot be held liable for damages resulting from:
This section contains basic information for your safety.
Read the information carefully before setting up, programming, maintaining or operating the machine.
Make sure to follow the information included in this section. Failure to do
so can result in serious injury and damage to the machine.
2.1Basic safety instructions
Only authorized personnel should use the machine. Anyone working on
the machine should read the operating manual first.
The machine should only be used in accordance with the manual.
The operating manual should be available at the machine 's location at all
times.
Observe the generally applicable safety and accident prevention regula-
tions and the legal regulations concerning industrial safety and environmental protection.
If you are using parts from other suppliers, please also observe the safety
instructions and the operating manual provided by the respective manufacturer.
All warnings on the machine must always be in legible condition and may
not be removed. Missing or damaged labels should be replaced immediately.
In the following situations, the machine must be disconnected from the
power supply using the main switch or by disconnecting the power plug:
•Threading
•Replacing the needle or other sewing tools
•Leaving the workplace
•Performing service work, maintenance work and repairs
Check the machine during use for any externally visible damage. Stop
working as soon as you notice any changes to the machine. Report any
changes to your supervisor. A damaged machine should no longer be
used.
Machines or machine parts that have reached the end of their service life
must not continue to be used. They have to be disposed of correctly and
in accordance with the applicable statutory provisions.
Only qualified specialists may set up the machine. Anyone setting up the
machine must have read the set-up instructions first.
Service Instructions 512-211-01/532-211-01 - 00.0 - 06/20167
Safety information
Only qualified specialists may perform maintenance work and repairs.
Anyone maintaining or adjusting the machine must have rea d the service
manual first.
Safety equipment should not be removed or deactivated. If this cannot be
avoided for a repair operation or service setting, the safety equipment
must be refitted and put back into service immediately afterwards.
Only qualified electrical specialists may perform work on electrical equipment.
The power cable must have a plug authorized for the country in which the
machine is being used. The power plug may only be connected to the
power cable by a qualified specialist.
Work on live components and equipment is prohibited. Exceptions are
defined in the specifications in DIN VDE 0105.
Only use original spare parts from the manufacturer. Missing or faulty
spare parts could impair safety and damage the machine.
2.2Signal words and symbols used in warnings
Warnings in the text are distinguished by color bars. The color scheme is
oriented towards the severity of the danger. Signal words indicate the d egree of risk:
Signal wordsSignal words and the endangerment that they describe:
Observe orderAlways adhere to the specified sequence for the individual setting steps.
Always observe all notes marked with a in the margin on prerequisites
and follow-up settings.
NOTICE
Property damage may occur!
Machine damage possible due to incorrect order.
Always adhere to the working order specified in this manual.
Binding the cable
together
3.2Cable routing
Ensure that all cables in the machine are laid in such a way that moving
parts are not impaired in their ability to function correctly.
1.Lay excessively long cables neatly in proper cable snakes.
2.Tie the snakes together using a cable tie.
If possible, bind the snakes to fixed parts.
The cables must be fixed firmly in place.
3.Cut off any protruding part of the cable tie.
NOTICE
Property damage may occur!
Machine damage and malfunctions can be caused by laying the
cables incorrectly.
Excess cabling may obstruct moving machine parts in their ability to
function correctly. This will affect the sewing function and may cause
damage.
Lay excess cabling as described above.
Service Instructions 512-211-01/532-211-01 - 00.0 - 06/201611
Work principles
①
3.3Removing the covers
NOTICE
Property damage may occur!
Machine damage and malfunctions can be caused by laying the
cables incorrectly.
Excess cabling may obstruct moving machine parts in their ability to
function correctly. This will affect the sewing function and may cause
damage.
Lay excess cabling as described above.
WARNING
Risk of injury from moving parts!
Crushing possible.
Switch the sewing machine off before you remove
the covers or refit them.
In many types of setting work, you will have to remove the machine covers
first in order to access the components.
Described here is how to remove the individual covers and how to reattach
them. Just the cover that needs to be removed is then specified in the text
for that particular type of setting work.
3.3.1 Access to the machine bottom section
In order to access the components at the machine bottom section, you
must first tilt the machine upper section to the left.
Fig. 1: Tilting the machine upper section to the left and setting it upright
Fig. 11: Removing and inserting the throat plate (4)
(9) - Connecting rod pin for needle thread clamp
1.Insert the throat plate (7) from above. When doing this make sure that
the hole in the needle thread clamp, which is located underneath the
throat plate, and the connecting rod pin of the needle thread clamp (9)
are mounted.
2.Mount the thread puller blade connecting rod (5) and make sure that
the connecting rod grips properly.
3.Tighten all 4 screws (8) of the throat plate firmly in place.
4.Tighten the screw (6).
5.Close the hook flap ( S. 17).
6.Fit the work surface (4).
7.Tighten the screw (3) for the work surface (4) firmly in place.
8.Mount both springs of the fabric clamp (1).
3.4Surfaces on shafts
Fig. 12: Surfaces on shafts
(1) - Surface(2) - Shaft
Some shafts have flat surfaces at those points where the components are
screwed on. This strengthens the connection and setting work is made easier.
Always make sure that the whole screw is seated completely on the surface.
Service Instructions 512-211-01/532-211-01 - 00.0 - 06/201619
The thread clamp switching flag is used as reference by the control unit for
the thread clamp. The switching flag is located underneath the throat plate
to the right and is factory set.
Service Instructions 512-211-01/532-211-01 - 00.0 - 06/201623
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