DURKOPP ADLER 512 Instruction Manual

LP 2971LP 2974Industrial sewing machineInstruction manualPostfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 BielefeldTelefon +49 (0)

85.1 Technical data of the subclassesSubclassesLP 2971LP 2974Type of stitch Lock stitch 301Hook typelargelargeNumber of needles 1 2Needle system 134Ne

6 Operation6.1 Threading the needle threadCaution! Risk of injury!Turn off the main switch.The needle thread may only be threaded with the sewing mach

6.2 Winding the hook thread–Thread the thread according to the picture.–Insert the thread under the knife (1) and tear off by pulling in thearrow dire

6.4 Adjusting the thread tension6.4.1 Adjusting the hook thread tensionCaution! Risk of injury!Turn off the main switch.The hook thread tension may on

6.4.2 Adjusting the needle thread tensionAdjusting the pre-tensioner (1)–When the main tensioner (3) and supplementary tensioner (2) areopen, the need

6.5 Switching on/off the thread tensioners–Tensioner (1) is never switched off.–Tensioners (2) and (3) are switched off with an electric magnet atthe

6.6 Adjusting the thread regulatorThe thread regulator (2) controls the quantity of needle thread requiredfor stitch formation.The thread regulator mu

6.7 Changing the needle with single-needle machines with the hook on the rightCaution! Risk of injury!Replace the needle with the main switch switched

6.8 Changing the needle with double-needle machinesCaution! Risk of injury!Turn off the main switch.The needles may only be changed with the sewing ma

6.9 Lifting and folding the roller presserLifting the roller presser with a hand lever–Lift the roller presser by the lever turning (1) in the arrow d

All rights reserved.Property of Dürkopp Adler AG and copyrighted. Reproduction or publication of the content in any manner, evenin extracts, without p

Roller presser foldingCaution! Risk of injury!Roller presser folding to be done at main switch off and standingmotor.–Lift the roller presser with the

6.11 Sewing backward (backtacking)Backtacking with the lever–Push the stitch regulator lever (1) downwards. The machine sewsbackward stitches as long

6.13 Switching on the safety clutch at the hook blocking–If the thread gets in the hook way, the hook gets blocked and it issubsequently disconnected

6.14 Controlling the machine equipped with a positioning motor6.14.1 Using the pedalThe pedal position is scanned by a sensor distinguishing 16 levels

6.14.2 Using the keyKey Function1 Manual sewing backwardThe machine sews backward stitches as long as the key is being pushed.2 Needle positioning to

7 Positioning drive Efka DC1550/DA321GDA321G control contains all necessary operating elements to switchthe functions over and to set the parameters.

8 Sewing with machine with positioning motor8.1 Machine automatic functionsThe machine has the below functions which are automaticallyperformed during

Automatic function codes are described in the attached drivemanufacturer´ s Instruction Leaflet.The drive manufacturer’s Instruction Leaflet for Efka

9. Maintenance9.1 Cleaning and checkingCaution! Risk of injury!Turn off the main switch.Maintenance may only be carried out with the machine switched

Maintenance w ork Explanation Operatingto be carried out hours- Clean the oil sump Clean the oil sump (1) of dirt andcontaminated oil.(you may use a s

ForewordThis instruction manual is intended to help the user to become familiarwith the machine and take advantage of its application possibilities in

9.2 LubricationCaution! Risk of injury!Oil can cause skin eruptions.Avoid protracted contact with the skin.In the event of contact, thoroughly wash th

GBContents Page:Part 2: Installation Instructions LP 2971, LP 2974 – Original Instructions1 Scope of delivery ...

Notes:

1 Scope of deliveryThe purchaser can order a c omplete machine, or some componentsonly. Prior to setting up, please c heck that all the required parts

2 Transport packing of assembled machineIf the machine is supplied in assembled condition, the followingtransport packing must be removed:–Safety stra

5GB3.2 Assembling the table top (direct drive)–Turn the table top (1) upside down.–Screw the electric cable channel (2).–Screw the pedal position sens

3.3 Setting the working height–The stand height is adjustable between 750 and 900 mm.–Loosen the screws (1).–Set the required table top height and mak

4 Assembling the machine head4.1 Fitting the machine head–Tilt the machine head (1) and insert it in the table top recess.–After the head insertion, s

4.2 Fitting the belt guards–Disassembly the hand wheel (1).–In the machines with the motor on the sewing head and with 1,55:1toothed belt driving gear

4.3 Adjustment of pedal position–Adjust the side position of the pedal (1) so that its center lies onthe needle axis.–Adjust the draw rod (2) so that

General safety instructionsThe non-observance of the following safety instructions can cause bodily injuries or damages to the machine.1. The machine

4.4 Fitting the oil pump pipe–Tilt the machine head (1).–Attach the pipe (2) with the clips (3) and install the suctionbasket (4).–TIlt the machine he

4.5 Fitting the connecting cable, control panel and sewing diode lampon the machine head–The connecting cable (1) is supplied with every machine with

5 Electrical connectionThe machine drive is supplied from the low voltage network.Caution!All w ork on the electrical equipment of this special sewing

5.1.1 Sewing lamp transformer connection to network voltageCaution! Risk of electric current injury!The sewing lamp transformer is not switched off by

5.2 Grounding–The grounding conductor (1) is included in the accessory packageof the machine head.–Connect the conductor (1) to the plug (2) and pull

5.3 Connection of the head to Efka DC1550/DA321G driveEfka DC1550/DA321G direct drive is fixed directly on the machinehead. The motor synchronizer is

6 Adjustment of Efka positioning motor (drive)The function of the positioning motor (drive) is defined by its program,drive parameter setting, and the

6.1.3 Values of parameters specific for LP 2971, LP 2974Parameter change for machines with gear rate of 28/28 teethParameter Original value New value

6.2.3 Checking of set positionsPosition 1–Switch on the network switch.–Tread the pedal forwards shortly and release. The machine isstopped in the pos

7 LubricationBefore start, the machine must be lubricated properly with oilaccording to chapter 9.2 in the operating instructions.8 Sewing testThis te

Contents Page:Introduction and safety instructionsPart 1: Operating Instructions LP 2971, LP 2974 – Original Instructions(Edition 06/2012)1 Product de

Notes:

5GB1 Product descriptionThe Dürkopp Adler LP 2971, LP 2974 is a special sewing machine foruniversal use.•It is a double lockstitch post bed sewing mac

3 SubclassesLP 2971 Single-needle double lockstitch post bed sewingmachine with feed wheel, needle feed with drivenroller foot and large hook, electro

4 Optional equipmentThe following optional equipments are available for the class LP 2971,LP 2974 :Order No. Optional equipment SubclassesLP 2971LP 29