Strobel GLOBAL BM 345 User manual

PRODUCED BY
INDUSTRIAL SEWING MASCHINES
BM 345
Operating In truction

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Operating instructions
BM345
Table of contents
1General notes on safety ...............................................................................................5
2General notes...............................................................................................................7
2.1 Operating instructions ........................................................................................7
2.2 Class designations, machine number and initial basis for descriptions ..............7
2.3 Applications of the machine ...............................................................................7
2.4 Technical data of machine .................................................................................8
3Setup and installation ...................................................................................................9
3.1 Unpacking the machine......................................................................................9
3.2 Setting up the machine.......................................................................................9
3.3 Direction of rotation on machine.......................................................................10
3.4 Motor drive using tooth belts ............................................................................12
3.4.1 Tension of toothed belt (figure 5) ....................................................12
3.4.2 Machine positions ...........................................................................13
4Notes on usage ..........................................................................................................15
4.1 Needles and threads ........................................................................................15
4.2 Inserting the needles ........................................................................................15
4.3 Threading and thread insertion.........................................................................16
4.4 Thread tension .................................................................................................17
4.5 Thread feeder...................................................................................................17
4.6 Stitch depth control...........................................................................................17
4.6.1 Adjusting the stitch depth ...............................................................17
4.7 Cloth retainer....................................................................................................18
4.8 Sewing material transport.................................................................................19
4.8.1 Adjusting the stitch length ...............................................................19
4.8.2 Adjusting the upper transporter .......................................................19
4.9 Interval .............................................................................................................20
4.9.1 Actuating and adjusting the interval ................................................20
4.9.2 Seams with blind stitches ................................................................21
4.10 Sewing problems and troubleshooting .............................................................23
5Servicing the machine ................................................................................................26
5.1 Lubricants.........................................................................................................26
We reserve the right to make design changes.
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

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From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

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1 General notes on safety
Failure to comply with the following safety instructions can lead to bodily
injury or damage to the machine.
1. The machine must only be operated by persons familiar with the relevant
operating instructions and who have been instructed accordingly.
2. Before commissioning also read the notes on safety and the operating
instructions of the sewing drive manufacturer.
3. Only use the machine in the intended manner and never without the
provided guards. Always observe the pertinent safety regulations.
4. Switch off the main switch or pull the power plug for threading, changing
the reels, exchanging sewing tools such as needle, gripper, needle plate,
transport devices, possibly cutter and cutting block, for cleaning and when
leaving the workplace as well as for maintenance. When using
mechanically actuated clutch motors not equipped with actuation locks,
always wait until the motor comes to a standstill.
5. General maintenance tasks may be carried out only by properly trained
persons in accordance with the operating instructions.
6. Repair work, retrofitting and maintenance may be carried out only by
technicians or specially trained personnel.
7. When servicing or repairing pneumatic equipment, the machine must be
disconnected from the pneumatic supply. Exceptions are only allowed for
adjustment work and tests of functionality performed by specially trained
technicians.
8. Only specially qualified technicians may work on the electrical equipment.
9. It is forbidden to work on electrically live components! Exemptions are
covered by the EN50110 (DIN VDE0105) regulations.
10. Any retrofitting or alterations to the machine may only be performed under
strict compliance with all pertinent safety regulations.
11. Only use our approved spare parts when servicing and/or repairing the
machine.
12. It is forbidden to operate the upper component until it is determined that the
entire sewing unit complies with EU provisions.
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com