LINCOLN ELECTRIC LF 56D Digital Wire Feeder Instruction Manual

: June 13, 2024
: LINCOLN ELECTRIC

Table of Contents

LINCOLN ELECTRIC LF 56D Digital Wire Feeder
Product Information
Product Usage Instructions
Introduction
Installation and Operator Instructions
Controls and Operational Features
Maintenance
Connection configuration
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

LINCOLN ELECTRIC LF 56D Digital Wire Feeder

Product Information

Product Name: LF 56D
Manufacturer: Lincoln Electric Bester Sp. z o.o.
Address: ul. Jana III Sobieskiego 19A, 58-260 Bielawa, Poland
Website: www.lincolnelectric.eu
Model Name: LF 56D
Input Voltage: 40Vdc
Input Amperes: 4Adc
Rated Output: 420A – 500A
Welding Current Range: 100% – 60%
Peak Open Circuit Voltage: 113Vdc peak

Dimension:

Weight: 17.7 kg
Height: 516 mm
Width: 302 mm
Length: 642 mm

Wire Feed Speed Range / Wire Diameter:

WFS Range: 4
Drive Rolls: Drive roll diameter
Protection Rating: IP23
Maximum Gas Pressure: 0.5 MPa (5 bar)

Electromagnetic Compatibility (EMC):
This machine has been designed to operate in an industrial area. To operate in a domestic area, it is necessary to observe particular precautions to eliminate possible electromagnetic disturbances. The operator must install and operate this equipment as described in the manual. If any electromagnetic disturbances are detected, the operator must put in place corrective actions to eliminate these disturbances, if necessary with assistance from Lincoln Electric.

Product Usage Instructions

To reduce electromagnetic emissions from the machine and ensure compatibility with other systems, follow these guidelines:

Connect the machine to the input supply according to the manual.
Additional precautions such as filtering the input supply may be necessary if disturbances occur.
Keep the output cables as short as possible and position them close to each other.
If possible, connect the workpiece to the ground to reduce electromagnetic emissions. Ensure that this does not cause any problems or unsafe operating conditions for personnel and equipment.
Consider shielding cables in the work area for special applications.

Technical Specifications

NAME	INDEX
LF 56D	K14336-1

Operating Temperature| Storage Temperature
from -10°C to +40°C| from -25°C to 55°C

Electromagnetic Compatibility (EMC)

This machine has been designed according to all relevant directives and standards. However, it may still generate electromagnetic disturbances that can affect other systems like telecommunications (telephone, radio, and television) or other safety systems. These disturbances can cause safety problems in the affected systems. Read and understand this section to eliminate or reduce the amount of electromagnetic disturbance generated by this machine.

This machine has been designed to operate in an industrial area. To operate in a domestic area it is necessary to observe particular precautions to eliminate possible electromagnetic disturbances. The operator must install and operate this equipment as described in this manual. If any electromagnetic disturbances are detected the operator must put in place corrective actions to eliminate these disturbances, if necessary with assistance from Lincoln Electric.

Before installing the machine, the operator must check the work area for any devices that may malfunction because of electromagnetic disturbances. Consider the following.

Input and output cables, control cables, and telephone cables that are in or adjacent to the work area and the machine
Radio and/or television transmitters and Computers or computer-controlled equipment.
Safety and control equipment for industrial Equipment for calibration and measurement.
Personal medical devices like pacemakers and hearing aids
Check the electromagnetic immunity for equipment operating in or near the work The operator must be sure that all equipment in the area is compatible. This may require additional protection measures.
The dimensions of the work area to consider will depend on the construction of the area and other activities that are taking

Consider the following guidelines to reduce electromagnetic emissions from the machine.

Connect the machine to the input supply according to this manual. If disturbances occur it may be necessary to take additional precautions such as filtering the input
The output cables should be as short as possible and positioned together as close as possible to each If possible connect the workpiece to the ground to reduce the electromagnetic emissions. The operator must check that connecting the workpiece to the ground does not cause problems or unsafe operating conditions for personnel and equipment.
Shielding of cables in the work area can reduce electromagnetic This may be necessary for special applications.

WARNING : EMC classification of this product is class A by electromagnetic compatibility standard EN 60974-10 which means that the product is designed to be used in an industrial environment only.

WARNING : The Class A equipment is not intended for use in residential locations where the electrical power is provided by the public low-voltage supply system. There may be potential difficulties in ensuring electromagnetic compatibility in those locations, due to conducted as well as radiated disturbances.

Safety

WARNING: This equipment has to be used by qualified personnel. Be sure that all installation, operation, maintenance, and repair procedures are performed only by a qualified person. Read and understand this manual before operating this equipment. Failure to follow the instructions in this manual could cause serious personal injury, loss of life, or equipment damage. Read and understand the following explanations of the warning symbols. Lincoln Electric is not responsible for damages caused by improper installation, improper care, or abnormal operation

The manufacturer reserves the right to make changes and/or improvements in design without upgrading at the same time the operator’s manual.

Introduction

LF 56D is a digital wire feeder that has been designed to work with Lincoln Electric power sources:

POWERTEC® i350S,
POWERTEC®i420S,
POWERTEC®i500S,
SPEEDTEC®400SP,
SPEEDTEC®500SP,
FLEXTEC®350x,
FLEXTEC®

The CAN protocol is used for communication between the power source and the wire feeder. All signals from the power source are displayed on the User Interface located in the wire feeder machine.

A Set of power sources and wire feeders allow welding in the listed processes:

GMAW (MIG/MAG),
FCAW,
SMAW (MMA),
GTAW,

The complete package contains:

Wire feeder.
USB memory with operator’s manual.
Easy Start.

Recommended equipment, which can be bought by the user, was mentioned in the chapter “Accessories”.

Installation and Operator Instructions

Read this entire section before installing or operating the machine.

Exploitation conditions
This machine can operate in harsh environments. However, it is important to use the following simple preventive measures that will ensure its long life and reliable operation:

Do not place or operate this machine on a surface with an incline higher than 15° from the horizontal.
Do not use this machine for pipe thawing.
This machine must be located where there is free circulation of clean air without restrictions for air movement. Do not cover the machine with paper, clothes,h or rags when switched on.
Dirt and dust that can be drawn into the machine should be kept away from the item.
This machine has a protection rating of IP23. Keep it dry when possible and do not place it on wet ground or in puddles.
Locate the machine away from the radio-controlled machinery. Normal operation may adversely affect theoperation of a nearby radio-controlled machinery, which may result in injury or equipment damage. Read the section on electromagnetic compatibility in this manual.
Do not operate in areas with an ambient temperature greater than 40°C.

Duty cycle and Overheating
The duty cycle of a welding machine is the percentage of time in a 10-minute cycle at which the welder can operate the machine at a rated welding current.

Example: 60% duty cycle:

Excessive extension of the duty cycle will cause the thermal protection circuit to activate.

Input Supply Connection
Check the input voltage, phase, and frequency of the power source that will be connected to this wire feeder. The acceptable input voltage level is indicated in the section „Technical Specificationsʺ and on the rating plate of the power source. Verify the connection of grounding wires from the power source to the input source.

Controls and Operational Features

EURO Socket : For connecting a welding gun (for GMAW, FCAW process).
Quick Coupling Socket: Coolant outlet (supplies cool coolant to the welding gun).
Quick Coupling Socket : Coolant inlet (takes warm coolant from the welding gun).
- WARNING : Maximum coolant pressure is 5 bar.
Output Socket for SMAW and CAG welding: For connecting welding cable with an electrode holder.
U7 User Interface: See „User Interfaceʺ section.
Gas Quick Coupling Socket: For connecting a gas pipe.
- WARNING : The machine allows the use of all suitable shielding gases with a maximum pressure of 5 bar.
Control Socket: 5 pins socket for connecting a control cable. The CAN protocol is used for communication between the power source and the wire feeder.
Current Socket: For connecting a welding cable.
Quick Coupling Socket: Coolant inlet (supplies cool coolant from cooler to the welding machine).
Quick Coupling Socket: Coolant outlet (takes warm coolant from the elding machine to the cooler).
Gas Flow Regulator Plug: A gas Flow Regulator can be purchased separately—Seethe the “Accessories” section.
Switch: Cold Inch / Gas Purge: This switch allows wire feeding (wire test) and gas flow (gas test) without switching on the output voltage.
Transport Holder: For the feeder lifting and transporting using a crane.
Wire Spool Holder: For wire spool with a maximum 16kg weight. The holder allows mounting plastic, steel, and fiber spools on the 51mm spindle.
- WARNING : Be sure that the wire spool case has to be completely closed during welding.
Spool with Wire: Not supplied as standard.
Wire Drive: 4-rolls wire drive.
- WARNING : The side panel and wire spool case have to be completely closed during welding.
- WARNING Do not use the handle to move the machine during operation.
Remote Control Socket: For connecting a Remote Control (see “Accessories” chapter).
USB Port: For connecting the USB memory and software updates.

User Interface Advanced (U7) ****Detailed operation of User Interface U7 can be found in the Advanced (U7) IM3170 user manual.

Loading the Wire Spool
Spools of wire with a maximum weight of 16 kg can be used without an adapter. The holder allows mounting plastic, steel, and fiber spools on the 51mm spindle. It is possible to use other spools after using the appropriate adapter, which can be purchased separately (see “Accessories” chapter).

Loading the Electrode Wire

Turn the input power OFF.
Open the spool wire case.
Unscrew the locking nut of the sleeve [14].
Load the spool wire on the sleeve so that the spool turns clockwise when the wire is fed into the wire feeder.
Make sure that the spindle brake pin goes into the fitting hole on the spool.
Screw in the locking nut of the sleeve.
Open the wire drive door.
Put on the wire roll with the correct groove corresponding to the wire diameter.
Free the end of the wire and cut off the bent end making sure it has no burr.

WARNING: Sharp end of the wire can hurt.

Rotate the wire spool clockwise and thread the end of the wire into the wire feeder as far as the Euro Socket.
Adjust the force pressure roll of the wire feeder properly.

Adjustments of Brake Torque of Sleeve

To avoid spontaneous unrolling of the welding wire the sleeve is fitted with a brake. Adjustment is carried by rotation of its screw M10, which is placed inside of the sleeve frame after unscrewing the brake locking nut.

Locking Nut.
Adjusting Screw M10.
Pressing Spring.

Turning the M10 screw clockwise increases the spring tension and increase the brake torque
Turning the M10 screw anticlockwise decreases the spring tension and decrease the brake torque.
After finishing of adjustment, you should screw the brake locking nut again.

Adjusting of Pressure Roll Force
The pressure arm controls the amount of force the drive rolls exert on the wire. Pressure force is adjusted by turning the adjustment nut clockwise to increase force, and counterclockwise to decrease force. Proper adjustment of the pressure arm gives the best welding performance.

WARNING
If the roll pressure is too weak, the roll will slide on the wire. If the roll pressure is set too heavy the wire may be deformed, which cause feeding problems in the welding. The pressure force should be set properly. For this purpose decrease the pressure force slowly until the wire just begins to slide on the drive roll and then increase the force slightly by turning off the adjustment nut by one turn.

Inserting Electrode Wire into Welding Torch

Turn the welding machine off.
Depending on the welding process connect the proper welding torch to the euro socket [1]. The rated parameters of the torch and welding machine should be matched.
Depending on the type of gun must be removed the nozzle from the gun and the contact tip or protection cap and contact tip.
Turn the welding machine on.
Hold the Cold Inch/Gas Purge Switch [12] or use the torch trigger until the wire appears over the threaded end of the gun.
When the Cold Inch Switch [12] or torch trigger is released the spool of wire should not unwind.
Adjust the wire spool brake accordingly.
Turn the welding machine off.
Install a proper contact tip.
Depending on the welding process and the type of the gun, install the nozzle (GMAW process) or protection cap (FCAW process).

WARNING
Take precautions to keep your eyes and hands away from the end of the gun while the wire is coming out of the threaded end.

Changing Driving Rolls

WARNING: Turn the input power off before installation or changing drive rolls.

Wire Feeders LF 56D is equipped with drive roll V1.0/V1.2 for steel wire. For other wires and sizes, it is required to install the proper drive rolls kit (see “Accessories” chapter) and follow the instructions:

Turn the input power OFF.
Unlock 4 rolls by turning 4 Quick-Change Carrier Gear [26].
Release the pressure roll levers [27].
Change the drive rolls [25] corresponding to the used wire.

WARNING: Be sure that the gun liner and contact tip are also sized to match the selected wire size.

WARNING
For wires with a diameter larger than 1.6mm, the following parts have to be changed:

The guide tube of the feeding console [23] and [24].
The guide tube of the Euro Socket [22].
Lock 4 new rolls by turning 4 Quick-Change Carrier Gear [26].
Insert the wire through the guide tube, over the roller, and through the guide tube of the Euro Socket into the liner of the gun. The wire can be pushed into the liner manually for a few centimeters and should feed easily and without any force.
Lock the pressure roll levers [27].

Gas Connection

WARNING

CYLINDER may explode if damaged.
Always fix the gas cylinder securely in an upright position, against a cylinder wall rack or purpose-made cylinder cart.
Keep the cylinder away from areas where it may be damaged, heated, or electrical circuits to prevent possible explosion or fire.
Keep the cylinder away from welding or other live electrical circuits.
Never lift the welder with the cylinder attached.
Never allow the welding electrode to touch the cylinder.
Build up of shielding gas may harm health or kill. Use in a well-ventilated area to avoid gas accumulation.
Close the gas cylinder valves thoroughly when not in use to avoid leaks.

WARNING: The welding machine supports all suitable shielding gases at a maximum pressure of 5,0 bar.

WARNING: Before use, make sure that the gas cylinder contains gas suitable for the intended purpose.

Turn off the input power at the welding power source.
Install a proper gas flow regulator to the gas cylinder.
Connect the gas hose to the regulator using the hose clamp.
The other end of the gas hose connects to the gas connector on the power source rear panel or directly to the quick connector located on the rear panel of the wire feeder [6]. More details you will find in the power source instruction manual.
Connect by dedicated interconnection cable (see „Accessoriesʺ chapter) wire feeder and power source.
Turn on the input power at the welding power source.
Open the gas cylinder valve.
Adjust the shielding gas flow of the gas regulator.
Check gas flow with Ga as a Purge Switch [12].

WARNING: To weld the GMAW process with CO2 shielding gas, a CO2 gas heater should be used.

Transport and Lifting

WARNING: Falling equipment can cause injury and damage to the unit.

During transporting and lifting with a crane, adhere to the following rules:

For lifting a suitable lifting equipment capacity.
A dedicated handle [13] can be used to lift and transport using a crane only. This solution enables welding while lifting the feeder.

Maintenance

WARNING: For any repair operations, modifications, or maintenance, it is recommended to contact the nearest Technical Service Center or Lincoln Electric. Repairs and modifications performed by unauthorized service or personnel will cause the loss of the manufacturer’s warranty

Any noticeable damage should be reported immediately and repaired.

Routine maintenance (every day)

Check the condition of the insulation and connections of the work leads and the insulation of the power lead. If any insulation damage exists replace the lead immediately.
Remove the spatters from the welding gun nozzle. Spatters could interfere with the shielding gas flow to the arc.
Check the welding gun condition: replace it, if necessary.
Check the condition and operation of the cooling fan. Keep clean its airflow slots.

Periodic maintenance (every 200 working hours but at least once a year)

Perform the routine maintenance and, in addition:

Keep the machine clean. Using a dry (and low-pressure) airflow, remove the dust from the external case and the cabinet inside.
If it is required, clean and tighten all weld terminals. The frequency of the maintenance operations may vary by the working environment where the machine is placed.

WARNING: Do not touch electrically live parts.
WARNING: Before removing the case, the machine has to be turned off and the power lead has to be disconnected from the main socket.
WARNING: The main supply network must be disconnected from the machine before each maintenance and service. After each repair, perform proper tests to ensure safety.

Customer Assistance Policy
The business of The Lincoln Electric Company is manufacturing and selling high-quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice and assumes no liability, concerning such information or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer’s particular purpose, concerning such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand, or alter any warranty concerning the sale of our products Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements.

Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.

WEEE
Do not dispose of electrical equipment together with normal waste!

In observance of European Directive 2012/19/EC on Waste Electrical and Electronic Equipment (WEEE) and its implementation by national law, electrical equipment that has reached the end of its life must be collected separately and returned to an environmentally compatible recycling facility. As the owner of the equipment, you should get information on approved collection systems from our local representative. By applying this European Directive you will protect the environment and human health!

Spare Parts

Part List reading instructions

Do not use this part list for a machine if its code number is not listed. Contact the Lincoln Electric Service Department for any code number not listed.
Use the illustration of the assembly page and the table below to determine where the part is located for your particular code machine.
Use only the parts marked “X” in the column under the heading number called for on the assembly page (# indicates a change in this printing).

First, read the Part List reading instructions above, then refer to the “Spare Part” manual supplied with the machine that contains a picture-descriptive part number cross-reference.

Authorized Service Shops Location

The purchaser must contact a Lincoln Authorized Service Facility (LASF) about any defect claimed under Lincoln’s warranty period.
Contact your local Lincoln Sales Representative for assistance in locating a LASF or go to www.lincolnelectric.com/en-gb/Support/Locator.

Electrical Schematic
Refer to the “Spare Part” manual supplied with the machine.

Accessories

OPTIONS & ACCESSORIES

K14204-1| WIRE FEEDER DRUM QUICK CONNECTOR
K14175-1| GAS FLOW METER KIT
K10095-1-15M| REMOTE CONTROL 6-PINS, 15M
K2909-1| 6-PIN/12-PIN ADAPTER
K14091-1| REMOTE MIG LF 45 PWC300-7M (CS/PP)
E/H-400A-70-5M| ELECTRODE HOLDER 400A/70MM² – 5M
K10158-1| ADAPTER FOR SPOOL-TYPE B300
K10158| ADAPTER FOR SPOOL-TYPE B300
R-1019-125-1/08R| ADAPTER FOR SPOOL S200
W000010136| FLAIR 600 GOUGING TORCH WITH MOUNTED LEAD 2,5M
COMPATIBLE POWER SOURCES
K14183-1| POWERTEC® i350S
K14184-1| POWERTEC® i420S
K14185-1| POWERTEC® i500S
K14258-1| SPEEDTEC® 400SP
K14259-1| SPEEDTEC® 500SP
K4283-1| FLEXTEC® 350x CONSTRUCTION
K4284-1| FLEXTEC® 350x STANDARD
K3607-2| FLEXTEC® 500x
MIG/MAG TORCHES
W10429-36-3M| LGS2 360 G-3.0M MIG GUN AIR COOLED
W10429-36-4M| LGS2 360 G-4.0M MIG GUN AIR COOLED
W10429-36-5M| LGS2 360 G-5.0M MIG GUN AIR COOLED
W10429-505-3M| LGS2 505 W-3.0M MIG GUN WATER-COOLED
W10429-505-4M| LGS2 505 W-4.0M MIG GUN WATER-COOLED
W10429-505-5M| LGS2 505 W-5.0M MIG GUN WATER-COOLED
PROMIG MAGNUM
W000345072-2| PROMIG MAGNUM 370 3M
W000345073-2| PROMIG MAGNUM 370 4.5M
W000345069-2| PROMIG MAGNUM 400W 3M
W000345070-2| PROMIG MAGNUM 400W 4.5M
W000345075-2| PROMIG MAGNUM 500W 3M
W000345076-2| PROMIG MAGNUM 500W 4.5M
ROLL KIT FOR SOLID WIRES
KP14150-V06/08| ROLL KIT 0.6/0.8VT FI37 4PCS GREEN/BLUE
KP14150-V08/10| ROLL KIT 0.8/1.0VT FI37 4PCS BLUE/RED
KP14150-V10/12| ROLL KIT 1.0/1.2VT FI37 4PCS RED/ORANGE
KP14150-V12/16| ROLL KIT 1.2/1.6VT FI37 4PCS ORANGE/YELL
KP14150-V16/24| ROLL KIT 1.6/2.4VT FI37 4PCS YELL/GREY
KP14150-V09/11| ROLL KIT 0.9/1.1VT FI37 4PCS
KP14150-V14/20| ROLL KIT 1.4/2.0VT FI37 4PCS
ROLL KIT FOR ALUMINIUM WIRES
KP14150-U06/08A| ROLL KIT 0.6/0.8AT FI37 4PCS GREEN/BLUE
KP14150-U08/10A| ROLL KIT 0.8/1.0AT FI37 4PCS BLUE/RED
KP14150-U10/12A| ROLL KIT 1.0/1.2AT FI37 4PCS RED/ORANGE
KP14150-U12/16A| ROLL KIT 1.2/1.6AT FI37 4PCS ORANGE/YELL
KP14150-U16/24A| ROLL KIT 1.6/2.4AT FI37 4PCS YELL/GREY
ROLL KIT FOR CORED WIRES

KP14150-V12/16R| ROLL KIT 1.2/1.6RT FI37 4PCS ORANGE/YELL
KP14150-V14/20R| ROLL KIT 1.4/2.0RT FI37 4PCS
KP14150-V16/24R| ROLL KIT 1.6/2.4RT FI37 4PCS YELL/GREY
KP14150-V09/11R| ROLL KIT 0.9/1.1RT FI37 4PCS
KP14150-V10/12R| ROLL KIT 1.0/1.2RT FI37 4PCS -/ORANGE
WIRE GUIDES
0744-000-318R| WIRE GUIDE SET BLUE Ø0.6-1.6
0744-000-319R| WIRE GUIDE SET RED Ø1.8-2.8
D-1829-066-4R| EURO WIRE GUIDE Ø0.6-1.6
D-1829-066-5R| EURO WIRE GUIDE Ø1.8-2.8
INTERCONNECION CABLES
K14198-PG| CABLE PACK 5PIN G 70MM2 1M
K14198-PG-3M| CABLE PACK 5PIN G 70MM2 3M
K14198-PG-5M| CABLE PACK 5PIN G 70MM2 5M
K14198-PG-10M| CABLE PACK 5PIN G 70MM2 10M
K14198-PG-15M| CABLE PACK 5PIN G 95MM2 15M
K14198-PG-20M| CABLE PACK 5PIN G 95MM2 20M
K14198-PG-25M| CABLE PACK 5PIN G 95MM2 25M
K14198-PG-30M| CABLE PACK 5PIN G 95MM2 30M
K14199-PGW| CABLE PACK 5PIN W 95MM2 1M
K14199-PGW-3M| CABLE PACK 5PIN W 95MM2 3M
K14199-PGW-5M| CABLE PACK 5PIN W 95MM2 5M
K14199-PGW-10M| CABLE PACK 5PIN W 95MM2 10M
K14199-PGW-15M| CABLE PACK 5PIN W 95MM2 15M
K14199-PGW-20M| CABLE PACK 5PIN W 95MM2 20M
K14199-PGW-25M| CABLE PACK 5PIN W 95MM2 25M
K14199-PGW-30M| CABLE PACK 5PIN W 95MM2 30M

Connection configuration

THANK YOU! For choosing the QUALITY of the Lincoln Electric products.

Please check the packaging and equipment for damage. Claims for material damaged in shipment must be notified immediately to the dealer.
For ease of use, please enter your product identification data in the table below.

The model Name, Code, and serial Number can be found on the machine rating plate.