Kemppi FU 11 User manual

FU 11
KÄYTTÖOHJE
BRUKSANVISNING
OPERATION INSTRUCTIONS
GEBRAUCHSANWEISUNG
GEBRUIKSAANWIJZING
MANUEL D'UTILISATION
1923590
9907
Lue ja perehdy tähän ohjeeseen ennen hitsauskoneen käyttöönottoa !
Läs noga igenom denna bruksanvisningen före bruket av svetsmaskinen !
Read carefully these instructions before you use the welding machine !
Bitte, lesen ie diese Gebrauchsanweisungen vor Gebrauch der chweiß-
maschine !
Lees deze gebruiksaanwijzing aandachtig door voor u de lasmachine in gebruik
neemt !
Veuillez lire et appliquer ces instructions avant utilisation de la machine!
FU 11

2 / 1923590 / 9907
uomi
Suomi
KÄYTTÖSÄÄTIMET JA LIITTIMET ........................ 4
LANGANSYÖTTÖMEKANISMIN OSAT
LSL  FU 11 ........................................................... 5
KÄYTTÖTURVALLISUUS ...................................... 6
TAKUUEHDOT....................................................... 6
TEKNISET ARVOT ................................................ 7
MIG-LAITTEISTON KOONTA ................................ 7
KÄYTTÖÖNOTTO ................................................. 7
La kahalkaisija mukai e varustus................. 7
MIG-hitsauspistooli ase us ........................... 8
La kakela ase us ja lukitus .......................... 8
La ga automaattipujotus pistoolii .................. 8
Puristuspai ee säätö ....................................... 8
La kakela jarru kireyde säätö...................... 8
Paluuvirtakaapeli ............................................... 9
Suojakaasu ....................................................... 9
KÄYTTÖSÄÄTIMET ............................................. 10
KAUKOSÄÄTIMET............................................... 10
HUOLTO JA TOIMINTAHÄIRIÖT ..........................11
Svenska
FUNKTIONSREGLAGE OCH ANSLUTNINGAR ... 4
DELAR I TRÅDMATARMEKANISMEN
LSL  FU 11 ........................................................... 5
DRIFTSÄKERHET ............................................... 12
GARANTIVILLKOR .............................................. 12
TEKNISKA DATA ................................................. 13
MONTERING AV MIG-ANLÄGGNING ................. 13
INSTALLATION .................................................... 13
Tillbehör för olika tråddiametrar ....................... 13
Mo teri g av MIG-svetspistol .......................... 14
Mo teri g och lås i g av trådbobi ................. 14
Automatisk i mat i g av svetstråd till pistole 14
Justeri g av presstryck.................................... 14
I ställ i g av bobi bromsspä i g ................. 14
Återledarkabel ................................................. 15
Skyddsgas ....................................................... 15
FUNKTIONSREGLAGE ....................................... 16
FJÄRREGLAGE ................................................... 16
SERVICE OCH FUNKTIONSSTÖRNINGAR ...... 17
English
OPERATION CONTROL AND CONNECTORS..... 4
PARTS OF WIRE FEED MECHANISM
LSL  FU 11 ........................................................... 5
OPERATION SAFETY ......................................... 18
TERMS OF GUARANTEE ................................... 18
TECHNICAL DATA ............................................... 19
ASSEMBLY OF MIG EQUIPMENT ...................... 19
INSTALLATION .................................................... 19
Accessories correspo di g to wire diameter... 19
Mou ti g of MIG weldi g gu .......................... 20
Mou ti g a d locki g of wire reel .................... 20
Automatic wire feed to gu .............................. 20
Adjustme t of pressure ................................... 20
Adjustme t of tight ess of reel brake .............. 20
Grou d cable ................................................... 21
Shieldi g gas ................................................... 21
OPERATION CONTROL...................................... 22
REMOTE CONTROL UNITS ............................... 22
SERVICE, OPERATION DISTURBANCES ......... 23
Deutsch
BEDIENUNGSELEMENTE UND ANSCHLÜSSE .. 4
TEILE IM DRAHTVORSCHUBMECHANISMUS
LSL  FU 11 ........................................................... 5
BETRIEBSSICHERHEIT ..................................... 24
GARANTIEBEDINGUNGEN ................................ 24
TECHNISCHE DATEN ......................................... 25
ZUSAMMENSETZUNG DER MIG-ANLAGEN ..... 25
INBETRIEBNAHME ............................................. 25
Ausrüstu g laut dem Drahtdurchmesser......... 25
Mo tieru g der MIG-Schweißpistole ............... 26
Ei lege u d Verriegel der Drahtspule .......... 26
Automatische Ei führu g des Drahtes
zur Pistole........................................................ 26
Ei stellu g für A preßdruck ............................ 27
Ei stellu g für Spa u g
der Drahtspule bremse ................................... 27
Stromrückleitu gskabel ................................... 27
Schutzgas........................................................ 27
BEDIENUNGSELEMENTE .................................. 28
FERNREGELEINHEITEN .................................... 29
WARTUNG UND BETRIEBSSTÖRUNGEN ........ 29
EnglishDeutschFrançais Nederlands venska

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Nederlands
BEDIENING EN AANSLUITINGEN........................ 4
ONDERDELEN IM HET DRAADAANVOER-
MECHNISME LSL  FU 11 ..................................... 5
VEILIGE WERKING ............................................. 30
GARANTIE VOORWAARDEN ............................. 30
TECHNISCHE GEGEVENS ................................ 31
PLAATSEN VAN HET MIG-SYSTEEM ................ 31
INBEDRIJFSTELLING ......................................... 31
Uitrusti g volge s draaddiameter .................... 31
Mo tere va het MIG-laspistool ..................... 32
Mo tere e vastzette va de draadhaspel ... 32
Automatisch draadi voersysteem ................... 32
Druki stelli g ................................................... 32
I stelle va de spa i g va de
draadhaspelrem .............................................. 33
Werkstukkabel................................................. 33
Beschermgas .................................................. 33
BEDIENINGSELEMENTEN ................................. 34
AFSTANDSBEDIENINGEN ................................. 34
ONDERHOUD EN STORINGEN ......................... 35
Francais
COMMANDES ET CONNECTEURS ..................... 4
PIECES DU MECANISME DE DEVIDAGE
LSL  FU 11 ........................................................... 5
CONSIGNES DE SECURITE .............................. 36
CONDITIONS DE GARANTIE ............................. 36
CARACTERISTIQUES TECHNIQUES ................ 37
INSTALLATION DU SYSTEME MIG .................... 37
INSTALLATION .................................................... 37
Equipeme t e fo ctio du type
et du diamètre du fil ......................................... 37
Raccordeme t de la torche MIG ..................... 38
Mo tage et fixatio de la bobi e de fil ............. 38
E traî eme t automatique du fil ..................... 38
Réglage de la pressio .................................... 38
Réglage du frei age du support-frei .............. 38
Câble de masse .............................................. 39
Gaz de protectio ............................................ 39
COMMANDES - REGLAGES .............................. 40
COMMANDES A DISTANCE................................ 40
ANOMALIES DE FONCTIONNEMENT ............... 41
EnglishDeutschFrançais Nederlands venska

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Jälkivirta-ajan säätö
Inställning av efterbrinntid
Burn back time adjustment
Einstellung für Rückbrand eit
Instelling voor afbrandvertraging
Réglage de la durée du retard d´arc
Langansyötön kokeilu
Test för trådmatning
Wire inch
Testen des Drahtvorschubs
Testen draadanvoer
Avance-fil manuelle
Kaasun kokeilukytkin
Testbrytare för gasflöde
Gas purge switch
Testschalter der Gasströmung
Testschakelaar voor gasstroom
Bouton test ga
Suojakaasuliitäntä
Skyddsgasanslutning
Shielding gas connection
Schut gasanschluß
Aansluiting voor beschermgas
Raccord ga de protection
Ohjauskaapeliliitäntä (kaukosäädin)
Anslutning för manöverkabel (Fjärreglage)
Connection for control cable (Remote control unit)
Anschluß für Steuerkabel (Fernregeleinheit)
Aansluiting voor stuurstroomkabel (Afstandsbediening)
Connexion du câble de commande (Commande à distance)
Käyttö äätimet ja liittimet
Funktion reglage och an lutningar
Operation control and connector
Bedienung elemente und An chlu e
Bedieningelementen en aan luitingen
Commande et connecteur
Langansyöttönopeuden lähisäätö
Panelreglage för trådmatningshastighet
Local control for wire feed speed
Nahreglung für Drahtvorschubgeschwindigkeit
Paneelregeling voor draadaanvoersnelheid
Commande locale de la vitesse de dévidage
Säätötavan valintakytkin (lähi-/kaukosäätö)
Väljare för reglagemetod (panel-/fjärreglering)
Control mode selecting switch (local/remote
control)
Wahlschalter für Regelungsmethode (Nah-/
Fernregelung)
Keu eschakelaar voor bediening (paneel-/
afstandsbediening)
Sélecteur du mode de commande (commande
locale/à distance)
Hitsauspistoolin liitäntä EURO
Svetspistolens anslutning EURO
Connection of welding gun EURO
Anschluß der Schweißpistole EURO
Aansluiting voor laspistool EURO
Connecteur torche EURO
Hitsausjännitteen lähisäätö
Panelreglage för svetsspänning
Local control for welding voltage
Nahreglung für Schweißspannung
Paneelregeling voor lasspanning
Commande locale de la tension de
soudage
Käynnistystavan valintakytkin
Valbrytare för startsätt
Start mode selecting switch
Wahlschalter für Startmethode
Keu eschakelaar voor startmethode
Sélecteur du mode de démarrage
Jäähdytysnesteletkujen lukitus
Låsning av kylvätskeslangar
Locking of cooling liquid hoses
Verriegelung der Kühlflüssigkeits-
schläuche
Aansluiting van de koelvloeistofslangen
Verrouillage des tuyaux du liquide de
refroidissement
Ohjauskaapeliliitäntä
Anslutning för manöverkabel
Connection for control cable
Anschluß für Steuerkabel
Aansluiting voor stuurstroomkabel
Connexion du câble de commande
Hitsausvirtaliitäntä
Svetsströmanslutning
Welding current connection
Schweißstromanschluß
Lasstroomaansluiting
Connexion du courant de soudage
EnglishDeutschFrançais Nederlands venska

9907 / 1923590 / 5
uomi
Langan yöttömekani min o at
Delar i trådmatarmekani men LSL  FU 11
Part of wire feed mechani m LSL  FU 11
Teile im drahtvor chubmechani mu LSL  FU 11
Onderdelen im het draadaanvoer-mechni me LSL  FU 11
Piece du mecani me de devidage LSL  FU 11
EnglishDeutschFrançais Nederlands venska

18 / 1923590 / 9907
English
Operation safety
Never watch the arc without a face shield designed for arc welding!
The arc damages unprotected eyes!
The arc burns unprotected skin!
Be careful for reflecting radiation of arc!
Protect yourself and the surroundings against the arc and hot spray!
Remember general fire safety!
Pay attention to the fire safety regu ations. We ding is a ways c assified as a fire risk operation.
We ding where there is f ammab e or exp osive materia is strict y forbidden.
If it is essentia to we d in such an area remove inf ammab e materia from the immediate vicinity of the we ding
site.
Fire extinguishers must a ways be on site where we ding is taking p ace.
Note! Spars may cause fire many hours after comp etion of we ding.
Watch out for the mains voltage!
Take care of the cab es - the connection cab e must not be compressed, touch sharp edges or hot work pieces.
Fau ty cab es are a ways a fire risk and high y dangerous.
Do not ocate the we ding machine on wet surfaces.
Do not take the we ding machine inside the work piece (i.e. in containers, cars etc.)
Ensure that neither you nor gas bottles or electrical e uipment are in contact with live wires or connec-
tions!
Do not use fau ty we ding cab es.
Iso ate yourse f by using dry and not worn out protective c othes.
Do not we d on wet ground.
Do not p ace MIG gun or the we ding cab es on the power source or other e ectrica equipment.
Dont press on mig gun switch, if the gun is not directed towards work piece.
Watch out for the welding fumes!
Ensure that there is sufficient venti ation.
Fo ow specia safety precautions when you we d meta s which contain ead, cadmium, zinc, mercury or bery i-
um.
Note the danger caused by special welding jobs!
Watch out for the fire and exp osion danger when we ding container type work pieces.
Terms of guarantee
KEMPPI OY provides a guarantee for products manufactured and so d by them if defects in manufacture and
materia s occur. Guarantee repairs must be carried out on y an Authorized KEMPPI Service Agent. Packing, freight
and insurance costs to be paid by third party. The guarantee is effected on the day of purchase. Verba promises
which do not comp y with the terms of guarantee are not binding on guarantor
Limitations on guarantee
The fo owing conditions are not covered under terms of guarantee: defects due to fair wear and tear, non-comp i-
ance with operating and maintenance instructions, connection to incorrect or fau ty supp y vo tage (inc uding vo t-
age surges outside equipment spec.), incorrect gas pressure, over oading, transport or storage damage, fire or
damage due to natura causes i.e. igthning or f ooding.
This guarantee does not cover direct or indirect trave ing costs, dai y a owances or accomodation.
Note: Under the terms of the guarantee, We ding torches and their consumab es, feed, drive ro ers and feeder
guide tubes are not covered.
Direct or indirect damage due to a defective product is not covered under the guarantee.
The guarantee is void if changes are made to the product without approva of the manufacturer, or if repairs are
carried out using non-approved spare parts.
The guarantee is a so void if repairs are carried out by non-authorised agents.
Guarantee period
The guarantee is va id for one year from date of purchase, provided that the machine is used for sing e-shift
operation.
The guarantee period for doub e and treb e shift operation is six months and four months respective y.
Undertaking guarantee repairs
Guarantee defects must be informed to KEMPPI or authorised KEMPPI Service Agents within the guarantee peri-
od. Before any guarantee work is undertaken, the customer must provide proof of purchase and seria number of
the equipment in order to va idate the guarantee.
The parts rep aced under the terms of the guarantee remain the property of KEMPPI.
Fo owing the guarantee repair, the guarantee of the machine or equipment, repaired or rep aced, wi be continued
to the end of the origina guarantee period.

9907 / 1923590 / 19
English
English
FU 11 is 4-roll driven light weight wire feeder unit, designed for demanding professional use. The FU 11 is
suitable to be used with the MULTISYSTEM power sources.
Technical data
*) Concerns e ectronic components.
The product meets conformity requirements for CE marking.
Assembly of MIG equipment
= Instruction = Warning = Prohibition
The connections of the FU 11 are shown on page 4.
Cab ings between different power sources and the FU are described in the operation instructions of the MULTISYS-
TEM power sources. The cab ings of the FU 11 are carried out in the same way ike in the FU 10, 20 and 30 wire
feeder units.
The FU 11 can be mounted to the MULTISYSTEM tro eys in the same way ike the FU 10, 20 and 30 wire feeder
units. The FU 11 can be insta ed to boom using the meta ift hook (3135870), which is mounted to the p astic
hand e.
Wire feeder unit must be mounted to boom in such a way that its chassis is galvanic separated both from
swing arm and boom.
Suspension ang e of wire feeder unit can be changed by moving fixing point in hand e.
Installation
Accessories corresponding to wire diameter
The wire feed ro s are avai ab e with p ain groove, knur ed
groove and with U groove for different purposes.
Feed rolls with plain groove:
Universa feed ro for we ding of a kinds of wires.
Feed rolls with knurled groove:
Specia feed ro for cored wires and stee wires.
Feed rolls with U groove:
Specia feed ro for a uminium wires.
The wire feed ro s have two grooves for different fi er
wire diameters. Correct wire groove is se ected by mov-
ing se ecting washer (28) from one side to another in feed ro .
Feed ro s and wire guide tubes of wire feeder unit have co our codes in order to make identification easier (see
tab e on page 5).
In de ivery the the FU 11 is equipped with red feed ro s with p ain groove and with orange wire guide tubes for
we ding fi er wires of 0.9-1.2mm (0.035", 0.045" and 0.052").
FU 11
Working voltage 30 VAC 50/60 Hz
Connection power 120 VA
Loading capacity 60 % ED
100 % ED 500 A 390 A
Operation principle
Diameter of feed roll
Wire feed speed
4-roll drive
32 mm
0...18 m / min
Filler wires ø Fe, Ss
ø Cored wire
ø Al
0,6...2,4 mm
0,8...2,4 mm
1,0...2,4 mm
Wire reel max. weight
max. size 20 kg ø 300 mm
Gun connector Euro
Operation temperature range
Storage temperature range -20...+40 °C -40...+60 °C
Degree of protection IP 23 *)
Dimensions
without handles length
width
height
440 mm
220 mm
400 mm
Weight 11,8 kg
feed rolls
colour filler wire ømm (inch)
white 0.6 and 0.8 (0.030)
red 0.9/1.0 and 1.2 (0.035, 0.045 and 0.052)
yellow 1.4, 1.6 and 2.0 (1/16 and 5/64)
black 2.4 (3/32)
guide tubes
colour filler wire ømm (inch)
orange 0.6-1.6 (0.024-1/16)
blue over 1.6 (over 1/16)

20 / 1923590 / 9907
English
28 28
For very heavy we ding with 1.0-1.2 mm fi er wires we recommend you to use the fo owing feed ro s with ball
bearing, where there are deviating from other feed ro s two simi ar grooves:
3138650 red, with p ain groove, for 1.0 mm wires
3137390 orange, with p ain groove, for 1.2 mm wires
3137380 orange, with knur ed groove, for 1.2 mm wires
Mounting of MIG welding gun
In order to ensure troub e-free we ding check in operation instructions of gun used by you that wire guide tube and
contact tip of gun are according to manufacturers recommendation suitab e to be used for wire feed diameter and
type in question. Too tight a wire guide tube might cause for wire feeder unit a bigger stress than norma y as we as
disturbances in wire feed.
Screw snap connector of gun tight that there wont come any vo tage osses on connecting surface.
Loose connection wi heat gun and wire feeder unit.
When you are using iquid-coo ed gun, mount coo ing iquid hoses in such a way that the ones with the red code
a ways are connected to the corresponding red counter-connectors and the b ue ones corresponding y to the b ue
counter-connectors.
Mounting and locking of wire reel
41
 Re ease ocking nai s of wire ree hub by turning ocking
knob a quarter round.
 Mount the ree at its p ace. Note rotating direction of
ree !
 Lock the ree with ocking knob, ocking nai s of hub re-
main to outside position and wi ock the ree .
Check that in fi er wire ree are no parts sticking out, which cou d e.g. chafe against chassis of the wire feeder
unit. Dragging parts might expose chassis of wire feeder unit under vo tage.
Automatic wire feed to gun
Automatic wire feed makes change of wire ree more rapid. In ree change the pressure of feed ro s need not to be
re eased and fi er wire goes automatica y to correct wire ine.
 Straighten about 20 cm of the wire and see that the end of it has no sharp edges (fi e off if necessary). A sharp
edge may damage the wire guide tube and contact tip of the we ding gun.
 Draw a bit of oose wire from wire ree . Feed wire through back iner to feed ro s. Dont re ease pressure of feed
ro s!
 Press the gun switch and feed a bit wire unti wire goes through feed ro s to gun. See that wire is in grooves of
both feed ro pairs!
 Press sti the gun switch unti wire has come through contact tip.
Automatic feed may sometimes fai with thin wires (Fe, Fc, Ss: 0,6...0,8mm, A : 0,8...1,0 mm). Then it might be
possib e that you must open feed ro s and feed wire manua y through feed ro s.
Adjustment of pressure
Adjust the pressure of feed ro s with the contro screw so that the wire is fed into the wire guide tube even y and
a ows a itt e braking when coming out from the contact tip without s ipping at the feed ro s.
Excessive pressure causes f attening of the fi er wire and damage to the coating. It a so causes undue wear
of the feed ro s as we as friction.
Adjustment of tightness of reel brake
 Make sure that groove of feed ro match the diameter of
we ding wire used. Feed ro groove is se ected by mov-
ing the groove se ecting washer (28).
 Re ease the wire end from ree and cut off the bent
ength. Be carefu that the wire does not spi from the
ree to sides!
Brake force is adjusted through ho e in ocking device of ree
hub by screwing the contro screw (41) with screwdriver.
Adjust brake force as so big that the wire is not a owed to
become too oose on the ree so that it wou d spi from the
ree when the rotation of the ree stops. Need for brake force
is increased with increase of wire feed speed. Since the
brake oads for its part the motor, you shou dnt keep it un-
necessari y tight.
LOCKED OPEN

9907 / 1923590 / 21
English
Ground cable
Fasten earthing press of ground cab e carefu y, preferab y direct to we ding piece. Contact surface of press a ways
shou d be as arge as possib e.
Clean the fastening surface from paint and rust!
Use in your MIG equipment 70mm2 copper-cab es. Thinner cross-sectiona areas might cause overheating
of connectors and insu ations.
Make sure that the we ding gun in your use is designed for max. we ding current needed by you!
Never use a damaged we ding gun!
Shielding gas
As MIG shie ding gas is used carbon dioxide, mixed gases and argon. Shie ding gas f ow rate is defined by we ding
current size.
Gas flow regulator
Gas f ow regu ator shou d be suitab e for shie ding gas used by you. The regu ator being in your use might be
different from the one in picture, however, fo owing genera instructions are va id for a pressure regu ators.
56
55
57 56
53
P1P2
51
52
54
Before mounting of flow regulator
 Step aside, open cy inder va ve (51) somewhat for a
moment, in this way you can b ow out any dirt that may
be in the va ve of bott e.
 Screw press regu ation screw (52) of regu ator outwards
so ong that no spring pressure can be fe t (screw is
turning free y).
 C ose need e va ve (53) if there is one in regu ator
Connect regulator onto valve of bottle
 Tighten connecting nut (54) preferab y with a wrench.
 Put hose spind e (55) of regu ator with jacket nuts (56)
onto gas hose, connection shou d be ensured with hose
c amp (57)
 Connect hose onto regu ator and machine, tighten jacket
nuts.
Open valve of bottle slowly
 Pressure meter (P1) shows pressure of bott e. Never use up a the gas in the bott e, send the bott e for fi ing up
when bott e pressure sti is 2bar.
 Open need e va ve if there is one in regu ator
 Screw regu ation screw (52) inwards unti hose pressure meter (P2) shows f ow (or pressure) required. By
regu ation of f ow amount the machine has to be in operation and the gun switch shou d be pressed on at the
same time.
Close valve of bottle always after having stopped welding
 If the machine wi be unused for a onger time, you shou d a so unscrew pressure regu ation screw (52).
Gas bottle
The gas bott e may exp ode if it fa s!
A ways fasten gas bott e tight y in vertica position, to wa stand or bott e cart, specia y designed for it!
For safety reasons a ways remove gas bott e from transport stand of machine before ifting or car transport of
machine!

22 / 1923590 / 9907
English
Operation control
See OPERATION CONTROL AND CONNECTORS page 4.
Local control of wire feed speed
Step ess contro of wire feed speed is
0...18m/min. The potentiometer is
equipped with the memory sca e from 1
to 10.
Local control for welding voltage
Step ess contro of power source´s vo t-
age. The potentiometer is equipped with
the memory sca e from 1 to 10.
Control mode selecting switch
(local / remote control)
Start mode selecting switch
2-se uence procedure
1. Switch pressed: we ding starts
2. Switch open: we ding stops
4-se uence procedure
1. Switch pressed: shie ding gas is f o-
wing
2. Switch open: we ding starts
3. Switch pressed: we ding stops
4. Switch open: gas f ow stops after the burn back time
Burn back time adjustment
The burn back time is adjusted between
0,05 - 0,5s.
You must possib y adjust the burn back
time among others then when you go
over to we ding of different fi er wire
types, for examp e when you go over from stee we ding
to a uminium we ding. The burn back time is adjusted as
such that the fi er wire doesn´t stick to we d piece or
burn fastened to contact tip at the end of we ding.
With the switch is se ected, if contro of
wire feed and vo tage is carried out from
contro potentiometers of the FU 11 or
from the remote contro unit, which is con-
nected to the machine.
Remote control units
To the machine connector on the front wa of the FU you can connect the MULTISYSTEM remote contro units,
which are designed for the MIG we ding and which have step ess contro for wire feed and vo tage. By use of the
remote contro turn the oca /remote contro switch into the remote contro position.
C 110D (order number 6185421)
MIG/MAG remote contro unit with contro s for wire feed and vo tage (memory sca e 110).
C 1 0S (order number 6185427)
The remote contro unit, into which you can program three different we ding parameters for the MIG/MAG or MMA
we ding. The parameters are se ected from the se ecting switch of the C 120S.
NOTE! In the MMA welding the MIG gun and the filler wire always are under voltage.
C 1 0P (order number 6185426)
Use is possib e on y with the PS 5000 or PSS 5000 power sources.
The C120P is pu sed MIG remote contro unit, with which the PS/PSS5000 MIG equipment can be changed into
the pu sed MIG equipment. The use and operation of the C 120P has been described in the operation instructions
of the C 120P.
C 120S C 120P
C 110D

9907 / 1923590 / 23
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Service operation disturbances
The amount of use and the working environment shou d be taken into consideration when p anning the frequency of
maintenance of the FU 11. Carefu use and preventive maintenance wi he p to ensure troub e-free operation.
The fo owing maintenance operations shou d be carried out at east every six months:
Check:
 The wear of the grooves of the feed ro s. Excessive wear of grooves causes
prob ems in wire feed.
 The wear of the wire guide tubes of the wire feeder unit. Bad y worn feed ro s and
wire guide tubes shou d be discarded.
 The wire guide tube in the gun shou d be set as near the feed ro s as possib e, but
not touching them and the wire must fo ow a straight ine from the end of the tube
to the groove of the feed ro .
 Ree brake adjustment.
 E ectric connections
* Oxidezed coup ings must be c eaned
* Loose coup ings must be tightened
C ean dust and dirt from the equipment.
twice
a year
When using compressed air, a ways protect your eyes with proper eye protection.
In case of prob ems contact your Kemppi dea er.
KEMPPI service repair shops make regular maintenance according to agreement.
The major points in the maintenance procedure are listed as follows:
 C eaning of the equipment
 Checking and maintenance of the we ding too s
 Checking of connectors, switches and potentiometers
 Checking of e ectric connections
 Metering units checking
 Checking of mains cab e and p ug
 Damaged parts or parts in bad connection are rep aced by new ones
 Maintenance testing. Operation and performance va ues of the equipment are checked, and adjusted when nec-
essary by means of test equipment.