JUKI LU-2810 Series User manual

PARTS & INSTRUCTION MANUAL
EDGE CUTTING DEVICE WITH COUNTER KNIFE
JUKI LU2810

TABLE OF CONTENTS Page:
Notes of Safety 2
Electrical Schematic 3
1. Mounting the Edge Cutting Unit 3
2. Functional description 3
3. Mode of Operation 4
4. Knife Change 5
5. Knife Adjustments 6
6. Adjusting the Edge Stop 7
7. Knife Speed 7
8. Knife Input Delay 7
9. Source of Error 8
1 . Maintenance 8
Images 9
Knife Adjusting Guidelines 12
Electrical Diagram 13
Parts List 14

NOTES OF SAFETY
1. The machine must only be commissioned in full knowledge of the instruction
book and operated by persons with appropriate training.
2. Before putting into service also read the safety rules and instructions of the motor
supplier.
3. The machine must be used only for the purpose intended. Use of the machine
without the safety devices is not permitted. Observe all the relevant safety
regulations.
. When gauge parts are exchanged (e.g. needle, presser foot, needle plate, feed
dog and bobbin), when threading, when the workplace is left, and during service
work, the machine must be disconnected from the mains by switching off the
master switch or disconnecting the mains plug.
5. Daily servicing work must be carried out only by appropriately trained persons.
6. Repairs, conversion and special maintenance work must only be carried out by
technicians or persons with appropriate training.
7. For service or repair work on pneumatic systems the machine must be
disconnected from the compressed air supply system. Exceptions to this are only
adjustments and function checks made by appropriately trained technicians.
8. Work on the electrical equipment must be carried out only by electricians or
appropriately trained persons.
9. Work on parts and systems under electric current is not permitted, except as
specified in regulations DIN VDE 0105.
10. Conversions or changes to the machine must be authorized by us and made only
in adherence to all safety regulations.
11. For repairs, only replacement parts approved by us must be used.

1. Mounting the Edge Cutting Unit
The edge cutting unit is mounted from the rear onto the machine. The
respective adapter plate for the corresponding sewing machine is
included in the kit.
Possibly some drillings must be made according to the attached drill plan.
1.1 Installation of the motor control
The drive for the edge cutter is screwed under the table.
Electrical connection:
ATTENTION: Risk of death by electric shock!!!
The motor controller is allowed to be connected by
qualified electrical only!
Unplug the power plug before working on electrical
equipment!
Secure the power cord from accidentally reconnecting!
Make sure to observe the correct voltage (100-250 V AC, 7-63 Hz). All
other connections see enclosed circuit diagram.
It is recommended to us a machine main switch!
2. Functional Description
Right beside the needle a special punching knife is arranged, that cuts
perpendicularly from above.
In the needle plate a tungsten carbide counter knife is attached.
The upper knife is driven by a direct current gear motor.
By the motor start signal a pneumatic cylinder is switched on for lowering the knife.
The control works with an appropriate tip-switch or via a knee-lever switch.
The edge cutting device is characterized by the following:
-Additional attachment onto usual flat-bed- or post-bed-machines
-Very high life time of the knifes
-Very fast and simple knife change
-The upper knife can be sharpened
-Knife speed is adjustable
-Cutting distances: 1.2 – 6.0 mm