Strata ADVANCEMIG 255C User manual

ADVANCEMIG 255C
OPERATING INSTRUCTIONS
MULTI-PROCESS MIG WELDER
www.strata.co.nz
230V 50HZ
SINGLE
PHASE
IGBT
INVERTER
TECHNOLOGY
DIRECT
CURRENT
OUTPUT
CONSTANT
CURRENT/
VOLTAGE
LIFT TIG
(OPTIONAL
TORCH)
SPOOL GUN
CAPABLE
POWER
FACTOR
CORRECTION
SPIKE/
GENERATOR
SAFE
LCD
SCREEN
VOLTAGE
REDUCTION
DEVICE
INTELLIGENT
PROTECTION
SYSTEM
IP23 CORROSION
& SALT SPRAY
RESISTANT
SYNERGIC
OPERATION
MULTI-VOLTAGE
INPUT POWER

CONTENTS
2 Overview ..................................................................................... 8
2.1 Brief Intro duction...................................................................................................... 8
2.2 Technical Data .............................................................................................................9
2.3 Duty cycle and Over-heat ...........................................................................................9
2.4 Working Principle ...................................................................................................... 10
2.5 V olt-Ampere Characteristic...................................................................................... 10
2.6 Control Panel of welding machine ............................................................................ 11
1 Panel Functions & Descriptions ............................................... 6
1.1 Machine Layout Description .................................................................................... 6
3 Installation & Operation .......................................................... 13
3.1 Installation & Operation for MIG Welding ............................................................ 13
3.1.1 Set up installation for M IG/MAG Welding.....................................................................13
3.1.2 Operation of MIG/MAG Synergic welding method ....................................................... 15
3.1.3 Operation of the MIG/MAG Manual welding method .................................................. 17
3.1.4 Wire Feed Roller Selection ............................................................................................... 18
3.1.5 Wire Installation and Set Up Guide ................................................................................. 19
3.1.6 MIG Torch Liner Installation ........................................................................................... 22
3.1.7 MIG Torch Liner Types and Information .......................................................................23
3.1.8 Torch & Wire Feed Set Up for Aluminium Wire ............................................................ 25
3.1.9 Set up installation for Spool Gun .....................................................................................27
3.1.10 MIG Torch /Spool Gun control ......................................................................................30
3.1.11 MIG Welding ................................................................................................................... 32
3.2 Installation & Operation for Stick Welding ............................................................ 40
3.2.1 Set up installation for Stick Welding ............................................................................... 40
3.2.2 Operation of the Stick welding method ........................................................................... 41
3.2.3 Stick （MMA）Welding....................................................................................................42
3.2.4 Stick （MMA）Welding Fundamentals .......................................................................... 43
2www.strata.co.nz
ADVANCEMIG 255C

3.3 Installation & Operation for TIG Welding ............................................................. 45
3.3.1 Set up installation for TIG Welding ................................................................................. 45
3.3.2 Operation of the TIG Lift welding method .....................................................................46
3.3.3 DC TIG Welding ................................................................................................................49
3.3.4 TIG Welding Fusion Technique....................................................................................... 50
3.3.5 Tungsten Electrodes ..........................................................................................................52
3.3.6 Tungsten Preparation ........................................................................................................54
3.3.7 Tig Gun switch control ...................................................................................................... 56
3.4 Operation environment ............................................................................................. 57
3.5 Operation Notices ...................................................................................................... 57
4 Welding trouble shooting .......................................................... 58
4.1 MIG weldi ng trouble shooting.................................................................................. 58
4.2 MIG wire feed trouble shooting ............................................................................... 60
4.3 DC TIG welding trouble shooting ............................................................................ 61
4.4 MMA welding trouble shooting ................................................................................ 64
5 Maintenance & Troubleshooting ............................................. 66
5.1 Maintenance ............................................................................................................... 66
5.2 Troubleshooting ......................................................................................................... 67
5.3 List of error code ....................................................................................................... 69
5.4 Electrical schematic drawing .................................................................................... 70
Safety.................................................................................................. 71
Warranty .......................................................................................... 76
3
www.strata.co.nz
ADVANCEMIG 255C

4www.strata.co.nz
ADVANCEMIG 255C
Congratulations on the purchase of your new Stata Welding Product!
The Strata range of Welding Products from Euroquip utilises the latest design technology and is
engineered to produce welding products that combine market leading value, features and durability.
Designed for the discerning operator, who seeks professional results and quality. Design emphasis is
placed on simple design and functional operation. All Strata products are subject to stringent quality
control and are designed and manufactured to New Zealand and Australian standards.
Common applications for Strata products include:
• Engineering
• Automotive
• Manufacturing
• Farming
• Industrial Maintenance and Repair
For more industrial welding solutions, check out the full Strata Range from Euroquip at:
www.strata.co.nz
Euroquip is a market leading provider of innovative power equipment solutions to a wide range of
industries across Australasia.
Providing exceptional product support is a key component of Euroquip’s market leading customer
advantage program. As part of this program, it is required products to be registered with Euroquip to
qualify for extended product support. Products that are not registered with Euroquip are supported
by a base 12 month warranty only. Spare parts and after sales support may not be available for an
unregistered product outside of the base warranty period. If a Euroquip dealer has not already registered
your product, please register it online at www.euroquip.co.nz. To access a physical registration form,
please download one at www.euroquip.co.nz under the contact us tab.

4www.strata.co.nz
ADVANCEMIG 250
• ADVANCEMIG 255C •
MULTI-PROCESS MIG WELDER
* 36 Month Warranty only with online registration of product - www.strata.co.nz
ADVANCEMIG 255C
MMA DUTY
CYCLE
MMA
ROD SIZE
STANDARDS WARRANTY
1.6 -5.0mm 36 months*
with
registration
DIMENSIONS
(LxWxH)
WEIGHT INPUT POWER
SUPPLY
INPUT POWER
SUPPLY
TOLERANCE
MAXIMUM
INPUT CURRENT
GENERATOR
CAPACITY
MIG OUTPUT
VOLTAGE
MIG OUTPUT
CURRENT
MIG DUTY
CYCLE
WIRE FEEDING
SPEED
680 x230
x 445mm
25kg230V AC 15A
50/60Hz
90 - 275V 41A 10kVA10 -30V25 - 250A250A@16%
195A@60%
150A@100%
EN60974-1:
2012
2.4- 18
m/min
MMA CURRENT
OUTPUT
MMA O/C
VOLTAGE
10 - 250A 65V
250A@13%
180A@60%
140A@100%
INSULATION
CLASS
POWER
FACTOR
IP23 0.99
POWER
EFFICIENCY
80% V Groove: 0.6 /0.8/0.9/1.0mm
Knurled: 0.8/0.9/1.0mm
U Groove: 0.8/1.0mm
MIG DRIVE ROLLERS
AVAILABLE
MIG WIRE
SPOOL SIZE
D200mm/
D300mm
5kg /15kg
• IGBT Inverter technology for smooth & stable welding output and increased
reliability
• 4 Roll geared metal wire feeder unit provides a powerful and smooth wire feed
• Digital microprocessor control system with superior & dynamic arc characteristics
• Increased duty cycle and energy efficiency with active PFC technology
• Multi voltage input - wiill operate with wide range of input voltage, can even be
used with long extension leads
• Smart full colour LCD display for a clear and intuitive display of all welding and
setting parameters
• Synergic MIG operation with parameter save/recall, an intuitive, simple setting of
controls for consistent welding results
• Remote control spool gun connection gives effective results welding with soft
wires such as aluminium. Suitable for MIG brazing with bronze wires.
• Lift TIG operation with down slope and remote current control ability.
• Great control MIG welding with adjustable pre flow, post flow, burn back and soft
start settings
• Reversable polarity for gas & gasless MIG welding.
• MIG waveform (inductance) gives good control of the arc for smooth welding
results
• Lightweight & compact design ideal for portable applications
• Extreme stress tested in production up to 440V, ensuring rugged reliability
• Industrial IP23 casing with front panel protection, resists damage, moisture and
corrosion
• Durable and reliable with high quality & over specified electronic components
• Intelligent protection system with temperature, voltage and current sensors for
increased reliability & safety
• Designed to work with generator power supply with protection from power surges.
• Quick connect inlet gas fitting
• Accessories include 3m earth lead with heavy duty earth
clamp, 4m MMA lead with heavy duty twist lock electrode
holder, MT240-4ER MIG torch, 2 stage flowmeter, argon
gas regulator and adapter, 4m gas hose, gas inlet quick
connector, hose clamps and MIG drive rollers.
With IGBT and PFC technology the ADVANCEMIG 255C is a multi-process welder suited to a range of jobs and
to 440V and IP23 protection mean this machine is built to withstand the harshest of environments found in
the NZ workplace.
LCD
SCREEN
15 AMP
PLUG

DescriptionPart number
MT250-4E MB25 Mig Torch 4m (Euro)
MB25KIT MIG Consummables Starter Kit - MB25
MCN2571 Nozzle cylindrical (2 pk
MCN2570 Nozzle conical (2 pk)
MCN2572 Nozzle - Tapered (2 pk)
MMT2406 Mig tip 0.6mm (5 pk)
MMT2408 Mig tip 0.8mm/0.35 (5pk)
MMT2409 Mig tip 0.9mm/035 (55pk)
MMT2410Contact Tip 1.0mm/040 (5 pk)
MMT2410AL Contact Tip 1.0mm/040 ALI (5 pk)
MMT2412AL Contact Tip 1.2mm/045 ALI (5pk)
MTA2481Tip Adaptor
MSS2557 Shroud spring (2 pk)
SW17835 0.6 /0.8mm V groove rollers x 2
SW17836 0.9 / 1.0mm V groove rollers x 2
SW17841 0.8 /1.0mm U groove rollers x 2
SW17842 1.2 / 1.6mm U groove rollers x 2
SW17833 Drive Roller 0.8/0.9mm knurled x 2
SW17839 Drive Roller 1.0/1.2mm flux cored x2
MSL1549 Steel liner 0.6 - 0.9mm 4m
MSL2442 Steel liner 1.0 - 1.2mm x 4m
31535 Liner for Aluminium (please State the length needed)
17374 TIG Torch Pro-Grip 26 X 25Ft, Tgc End (Large Dinse) M12,(needs correct plug to be fitted )
18004 SP100N Spool Gun 8m, suits Strata AdvanceMig Models (needs correct plug to be fitted )
AAL3550 Arc Lead 25mm2 cable, 35-70mm plug, 4m 300A Twist-lock Electrode holder
AEL3550 Earth Lead 25mm2 cable, 35-70mm plug, 3m 300A Heavy duty earth clamp
GR101AR Argon Twin Gauge Regulator
GADC02 C02 Cylinder to Argon Regulator Ardaptor inc. nylon washer
MMA Consumables
Regulators
ADVANCEMIG255C Related Parts
MIG Torch & Consumables
Drive Rollers
Liner
TIG Torch
Spool Gun
www.strata.co.nz
ADVANCEMIG 255C
6

1 Panel Functions & Descriptions
1.1 Machine Layout Description
Front and rear panel layout of welding machine
1. MIG torch euro connector.
2. Positive (+) welding power output
connection socket.
3. TIG torch gas connector.
4. MIG Torch Polarity Change Power
Connection.
5. Remote connection plug.
6. Negative (-) welding power output
connection socket.
7. Gas inlet connector.
8. Power switch.
9. Input power cable.
Welding machine internal view
10. Wire feeder & spool Gun switch
11. Spool holder.
12. Wire feed tension adjustment (2x).
13. Wire feed tension arm (2x).
14. Wire feeder inlet guide.
15. Drive roller retainer (2x).
16. Wire drive roller (2x).
17. Wire feed motor.
www.strata.co.nz
ADVANCEMIG 255C
7

2 Overview
2.1 Brief Introduction
MIG series of welding machines adopts the latest Pulse Width Modulation (PWM) technology
and the Insulated Gate Bipolar Transistor (IGBT) power modules. It uses switching frequencies in
the 20KHz-50KHz range so as to replace the traditional line-frequency transformer type welding
machines. Thus, machines are characterized with excellent dynamic response, portability, small
size, lightweight, low energy consumption, etc.
MIG series of welding machines uses Mix gases as shielding gas to realize gas shielded
welding, active gas（Ar+O2、Ar+CO2）as shielded gas to realize MAG welding and inactive gas
（Ar）as shielded gas to realize MIG welding.
MIG series of welding machines has built-in automatic protection functions to protect the
machines from over-voltage, over-current and over-heat. If any one of the above problems
happens, the LCD on the front panel will be display error code and output current will be shut off
automatically for the machine to protect itself and prolong the equipment using life.
MIG series Features:
1. Digital control system, real-time display the welding parameters;
2. High performance multifunction power source (MIG/MAG);
3. Waveform control, stable welding arc;
4. IGBT technology, low power consumption;
MIG series of welding machine is suitable for all positions welding for various plates made of
stainless steel, carbon steel, alloyed steel etc. Applications applied to pipe installment,
petrochemical, architecture equipment, car repair, bicycle repair, handicraft and common steel
fabrication.
MAG = Metal Active Gas Welding
MIG = Metal Inert Gas Welding
8www.strata.co.nz
ADVANCEMIG 255C

2.2 Technical Data
Model
Parameters ADVANCEMIG 255C
Input Voltage（V）1~220/230/240±10%
MIGMMA TIG
Input Current（A）35 40 28
Input Power（KW）7.9 8.9 6.3
Welding Current（A）25-250 10~250
Welding Voltage（V）10-30 (MIG)
No-load Voltage（V）67 (MIG) 14.5 (TIG/MMA)
Power Factor 0.99
Duty cycle 16% @ 250A
60% @195A
Diameter(mm) Fe：0.6,0.9,1.0 Ss：0.8,0.9,1.0
Flux-Cored：0.6, 0.8, 0.9, 1.0
Protection class IP23
Insulation class H
Cooling AF
Dimensions（mm）
Weight（Kg）
Note: The above parameters are subject to change.
2.3 Duty cycle and Over-heat
The letter “X” stands for Duty Cycle, which is
defined as the portion of the time a welding machine
can weld continuously with it’s rated output current
within a certain time cycle (10 minutes).
The relation between the duty cycle “X” and the
output welding current “I” is shown as the right
-heat protection sensing will send a signal to the welding machine control unit to cut the over
Relation of welding current and duty
cycle for ADVANCEMIG255C-
figure. If the welding machine is overheating, the IGBT
output welding current OFF and light the over-heat pilot lamp on the front panel. In that case, the
machine should not be welding for 10-15 minutes to cool down with the fanrunning. When
operating the machine again, the welding output current or the duty cycle should be reduced.
9
www.strata.co.nz
ADVANCEMIG 255C
680 x 230 x 445
25

2.4 Working Principle
The working principle of MIG series welding machine is shown as the following figure.
Single-phase 110V/220V work frequency AC is rectified into DC, then is converted to medium
frequency AC by inverter device (IGBT), after reducing voltage by medium transformer (the main
transformer) and rectifying by medium frequency rectifier (fast recovery diodes), and is outputted
by inductance filtering. The circuit adopts current feedback control technology to insure current
output stably when MMA or TIG. And adopts voltage feedback control technology to insure
voltage output stably when MIG. Meanwhile, the welding current parameter can be adjusted
continuously and infinitely to meet with the requirements of welding craft.
Rectifier Inverter Transformer Rectifier Hall
Current
Feedback
control
Single-phase AC DC AC DC
220V 50Hz
AC DC
Welding current
regulate
(Wire feed speed)
Wire feeder
motor
PWM signal
CPU control
Voltage
Feedback
control
Single-phase
110V 50/60Hz
Single-phase
220V 50/60Hz
Current sensor
2.5 Volt-Ampere Characteristic
MIG series of welding machines has an excellent volt-ampere characteristic, whose graph is
shown as the following figure. The relation between the rated loading voltage U2and welding
current I2is as follows: U2=14+0.05I2(V)
44
14
0600I
o
（A）
U
o
（V）
Working point
Volt-ampere characteristicThe relation betweenthe rated loading
voltage and welding current
10 www.strata.co.nz
ADVANCEMIG 255C

2.6 Control Panel of welding machine
Main Start-up Interface
1. Function selection interface:rotate L Knob in the interface to choose from the four welding
methods of MIG/MAG Synergic, MIG/MAG Manual, Stick and TIG Lift.
2. Synergic parameter selection interface:a synergic parameter may be selected by rotating L
Knob in the interface.
3. Welding parameter setting interface: a welding parameter and its corresponding value may
be selected and set by rotating L Knob and R Knob in the interface.
4. System setting interface:a system parameter and its corresponding value may be selected and
set by rotating L Knob and R Knob in the interface shown below:
System parameters available
by rotating L Knob
System parameters available
by rotating R Knob
Language English/Simplified Chinese...
Unit English/Metric
Beeper On/off
Brightness 1 - 10
Factory Reset Press
L
Knob
R
Knob
11
www.strata.co.nz
ADVANCEMIG 255C

5. Function icon display interface:an interface displaying the icon of the welding method
currently used.
6. Welding mode icon display interface: an interface displaying the icon of the welding mode
currently used (2T/4T).
7. Synergic parameter display interface:an interface displaying the synergic parameters
currently used (only available when MIG/MAG Synergic welding method is selected).
8. Multifunction display interface: an interface displaying the contents corresponding to those
selected by users, such as icons of welding method, welding mode and parameter, parameter
values, etc.
Note: 1. In the welding process, press the MENU key to return to the main interface and
re-set parameters, and then press the ENTER key to enter the welding interface;
2. In the function selection interface, rotate L Knob to select a welding method as
required and press L Knob two times to directly enter the welding interface.
12 www.strata.co.nz
ADVANCEMIG 255C

3Installation & Operation
3.1 Installation & Operation for MIG Welding
3.1.1 Set up installation for MIG/MAG Welding
(1) Insert the earth cable plug into the negative socket on the front of the machine and tighten it.
(2) Plug the welding torch into the MIG torch connection socket on the front panel and tighten
it.
IMPORTANT:When connecting the torch be sure to tighten the connection. A loose connection
can result in the connector arcing and damaging the machine and gun connector.
(3) Connect the MIG power connection lead to the positive welding power output socket.
Note if this connection is not made, there will be no electrical connection to the welding torch!
(4) Connect the gas regulator to the Gas Cylinder and connect the gas line to the Gas Regulator.
Check for Leaks!
(5) Connect the gas line to gas connector on the rear panel. Check for Leaks!
(6) Connect the power cable of welding machine with the output switch in electric box on site.
13
www.strata.co.nz
ADVANCEMIG 255C

(7) Place the Wire Spool onto the Spool Holder. Snip the wire from the spool being sure to hold
the wire to prevent rapid uncoiling. Feed the wire into the wire feeder inlet guide tube through to
the drive roller.
(8) Carefully feed the wire over the drive roller into the outlet guide tube, feed through about
150mm into the torch receptacle. Check that the drive roller size is compatible with the wire
diameter, replace the roller if necessary.
(9) Align the wire into the groove of the drive roller and close down the top roller making sure
the wire is in the groove of the bottom drive roller, lock the pressure arm into place. Apply a
medium amount of pressure to the drive roller.
(10) Remove the gas nozzle and contact tip from the torch neck.
14 www.strata.co.nz
ADVANCEMIG 255C

(11) Pull the trigger to feed the wire through to the torch neck, release the trigger when the wire
exits the torch neck.
(12) Fit the correct sized contact tip and feed the wire through it, screw the contact tip into the
tip holder of the torch head and nip it up tightly.
(14) Carefully open the gas cylinder valve and set the required gas flow rate.
(13) Fit the gas nozzle to the torch head.
3.1.2 Operation of MIG/MAG Synergic welding method
1. Selection of the welding method:
1) In the main interface, press the MENU key to enter the function selection interface;
2) In the function selection interface, rotate L Knob to select the MIG/MAG Synergic welding
method and press the knob for confirmation in the interface shown below:
Fig. 1
15
www.strata.co.nz
ADVANCEMIG 255C

2. Selection of synergic parameters:
1) In the main interface, press the MENU key to enter the synergic parameter selection interface;
2) In the synergic parameter selection interface, rotate L Knob to select the required synergic
parameters and press it for confirmation in the interface shown below:
3. Selection and setting of welding parameters:
1) In the main interface, press the MENU key to enter the welding parameter setting interface;
2) In the welding parameter setting interface, rotate L Knob to select the parameter as required
and rotate R Knob to set a value for the parameter. Press L Knob or R Knob for confirmation in
the interface shown below:
Welding parameters
available by rotating L Knob
Welding parameters
available by rotating R Knob
Two/four Stroke 2T/4T
Burn Back 0-10
Slow Feed 0-10
Pre-flow 0-2 S
Post Flow 0-10 S
Inductance 0-10
Fig. 2
4. Setting of welding current and voltage
1) Press the ENTER key to enter the welding interface shown below:
16 www.strata.co.nz
ADVANCEMIG 255C

2) In the welding interface, rotate L Knob to set the welding current, for which the adjustable
scope is different with the welding wires and gases;
3) The welding voltage will be automatically set as the value corresponding to that of the welding
current set by rotating L Knob.
4) When the programmed welding current does not meet user requirements, the setting is
available by rotating R Knob;
5) After the setting, press L Knob and R Knob for confirmation;
3.1.3 Operation of the MIG/MAG Manual welding method
1. Selection of the welding method:
1) In the main interface, press the MENU key to enter the function selection interface;
2) In the function selection interface, rotate L Knob to select the MIG/MAG Manual welding
method and press down it for confirmation as shown in Fig. 1;
3) Spool Gun Switch turn off (down).
2. Selection and setting of welding parameters:
1) In the main interface, press the MENU key to enter the welding parameter setting interface;
2) In the welding parameter setting interface, rotate L Knob to select the parameter as required
and rotate R Knob to set a value for the parameter, afterwards, press L Knob or R Knob for
confirmation. Refer to Fig. 2;
3. Setting of wire feed rate and welding current:
1) Press the ENTER key to enter the welding interface shown below:
17
www.strata.co.nz
ADVANCEMIG 255C

2) In the welding interface, rotate L Knob to set the wire feed rate and rotate R Knob to set the
welding current;
3) After the settings, press L Knob and R Knob for confirmation;
3.1.4 Wire Feed Roller Selection
The importance of smooth consistent wire feeding during MIG welding cannot be emphasized
enough. Simply put the smoother the wire feed then the better the welding will be.
Feed rollers or drive rollers are used to feed the wire mechanically along the length of the welding
gun. Feed rollers are designed to be used for certain types of welding wire and they have different
types of grooves machined in them to accommodate the different types of wire. The wire is held
in the groove by the top roller of the wire drive unit and is referred to as the pressure roller,
pressure is applied by a tension arm that can be adjusted to increase or decrease the pressure as
required. The type of wire will determine how much pressure can be applied and what type of
drive roller is best suited to obtain optimum wire feed.
Solid Hard Wire - like Steel, Stainless Steel require a drive roller with a V shape groove for
optimum grip and drive capability. Solid wires can have more tension applied to the wire from the
top pressure roller that holds the wire in the groove and the V shape groove is more suited for this.
Solid wires are more forgiving to feed due to their higher cross sectional column strength, they
are stiffer and don’t bend so easy.
Soft Wire - like Aluminium requires a U shape groove. Aluminium wire has a lot less column
strength, can bend easily and is therefore more difficult to feed. Soft wires can easily buckle at the
wire feeder where the wire is fed into inlet guide tube of the torch. The U-shaped roller offers
more surface area grip and traction to help feed the softer wire. Softer wires also require less
tension from the top pressure roller to avoid deforming the shape of the wire, too much tension
will push the wire out of shape and cause it to catch in the contact tip.
18 www.strata.co.nz
ADVANCEMIG 255C

Flux Core / Gasless Wire - these wires are made up of a thin metal sheath that has fluxig and
metal compounds layered onto it and then rolled into a cylinder to form the finished wire. The
wire cannot take too much pressure from the top roller as it can be crushed and deformed if too
much pressure is applied. A knurled drive roller has been developed and it has small serrations in
the groove, the serrations grip the wire and assist to drive it without too much pressure from the
top roller. The down side to the knurled wire feed roller on flux cored wire is it will slowly over
time bit by bit eat away at the surface of the welding wire, and these small pieces will eventually
go down into the liner. This will cause clogging in the liner and added friction that will lead to
welding wire feed problems. A U groove wire can also be used for flux core wire without the wire
particles coming of the wire surface.However it is considered that the knurled roller will give a
more positive feed of flux core wire without any deformation of the wire shape.
3.1.5 Wire Installation and Set Up Guide
Again the importance of smooth consistent wire feeding during MIG welding cannot be
emphasized enough. The correct installation of the wire spool and the wire into the wire feed unit
is critical to achieving an even and consistent wire feed. A high percentage of faults with mig
welders emanate from poor set up of the wire into the wire feeder. The guide below will assist in
the correct setup of your wire feeder.
(1) Remove the spool retaining nut. (2) Note the tension spring adjuster and
spool locating pin.
19
www.strata.co.nz
ADVANCEMIG 255C

(3) Fit the wire spool onto the spool holder (4) Snip the wire carefully, be sure to hold
fitting the locating pin into the location holeon the wire to prevent the spool uncoiling.
the spool. Replace the spool retaining nut tightly. Carefully feed the wire into the inlet guide
tube of the wire feed unit.
(5) Feed the wire through the drive roller (6) Lock down the top pressure roller and apply
and into the outlet guide tube of the wire a medium amount of pressure us-ing the tension
feeder. adjustment knob.
(7) Check that the wire passes through the centre of the
outlet guide tube without touching the sides. Loosen the
locking screw and then loosen the outlet guide tube
retaining nut too make adjustment if required. Carefully
retighten the locking nut and screw to hold the new
position.
20 www.strata.co.nz
ADVANCEMIG 255C