Snap-On MIG225Ai User manual

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Quick Start Guide - MIG225Ai
QUICK SET-UP
1. Install a 220v electrical plug
–The Green/yellow wire is the Ground
–The Blue wire and the Brown wire are hot wires
2. Install welding wire and torch assemblies
–follow the instructions in your owner’s manual.
3. Power on using the on/off Switch in the lower back corner
–A boot up display will appear, then the home screen
4. Toggle the Torch Selection Switch to your chosen torch
–Located on the bottom of the front panel
–Right (Red) to select the aluminum push pull
–Left (Black) to select the steel / braze torch.
5. Set Up Gas Bottles with a Regulator and Adjust Gas Flow (see Pg. 3)
*You will use the Red Knob for all menu and settings selections
6. Press and Hold until you see the Main Menu (Process Parameters)
7. Click to open the Wire Selection Menu
8. Turn to scroll and highlight the kind of wire and gas you are using
9. Click to select your wire and gas
10.You will be at the Main Menu (Process Parameters) screen again.
–The Settings you selected should be at the top of the menu
11.Press and Hold to return to the Home Screen.
12.Turn to Set the Thickness of your material
–Shown in the lower right corner of the display.
13.YOU ARE NOW READY TO WELD
This welder uses a Synergic Curve Principle
*The wire speed is preset to the thickness
*The welding amps and welding voltage change as you weld
*Simply set the metal Thickness adjust the Welding Gas Flow (see Pg. 3)
Wire and Gas Type
Active Welding Settings
Metal Thickness
Process Mode
Standard Start Mode
Double Level
Double Pulse
Push Pull Torch
Hot Start
Crater Fill
Spot Weld
SHORT
2T
DL
DP
PP
HSA
CRA
Spot
PULSED
Home Screen
Main Menu
Wire Selection Menu

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Advanced Settings - MIG225Ai
Welding Gas Set Up
1. Open each gas bottle.
2. Toggle the Torch Selector Switch to the torch you are using
3. Press and Hold the Torch Trigger to open the gas solenoid
–You may release the wire feeder within the machine to stop the wire from feeding
4. Turn the Regulator Flow Knob to your desired amount while the gas is flowing
–For Steel and Brazing set the gas flow to 30 CFH
–For Aluminum set the gas flow to 40 CFH
5. After a few seconds the gas flow will shut off and the wire speed increases
–This allows you to quickly feed wire without wasting gas.
Short and Pulse Arc Welding
*Short arc welding is the default setting for steel and aluminum
*Pulse arc welding is recommended for thin metal and Aluminum
1. Press and Hold to enter the Main Menu (Process Parameters)
2. Turn to highlight Process and Click to select
3. Turn to highlight your desired Mode (Short or Pulse) and Click to select
4. Press and Hold to Exit to the Home Screen
5. Your Selected Process should be displayed in the top right corner
6. Verify the Metal Thickness when switching modes
Arc Length Adjustment
*The arc length is preset when you select your metal thickness
1. Click while on the Home Screen
2. The Arc Length adjustment menu will appear
3. Turn to highlight your desired Arc Adjustment
–Positive voltage will increase heat
–Negative voltage will decrease heat
4. Click to confirm change and exit to the Home Screen
Resetting to Factory Preset
1. Press and Hold until you see the Main Menu (Process Parameters)
2. Turn to scroll down to Factory and Click to select
3. Turn to highlight Reset and Click to confirm selection
4. Click to OK then Press and Hold to exit to the Home Screen
Please read the Owner’s Manual for more detailed instructions and advanced welding options.
Process Selection Menu
Arc Adjustment

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Advanced Settings - MIG225Ai
Spot Welding Mode
1. Press and Hold until you see the Main Menu (Process Parameters)
2. Turn to scroll down to Spot and Click to select
3. Turn to highlight On or Off and Click to confirm selection
Spot Time
*The Length of Time for the spot weld
–Factory Preset at 1.0s
Pause Time
*The Off Time between each Spot Weld period when trigger is held down
–Factory Preset at OFF (0.0s)
Hot Start Assist (HSA)
*Start welding at a higher voltage to establish a strong initial bead on cold metal
*When Hot Start Assist is set to On, there will be Three Adjustable Parameters
S.C. Time (Start Current Time)
*The Length of Time welding at the Start Current percentage
–Factory Preset at 0.5s
Start Current
*The Percentage of the Welding Voltage the weld will begin at
–Factory Preset at 135%
Slope Time
*The Time of Change from the Start Current to 100% Voltage
–Factory Preset at 0.5s
Final Crater Filling (CRA)
*Fills the crater at the end of a weld by running at a lower voltage for a short time
*Final Crater Filling will occur after you release the torch trigger
*When Final Crater Filling is set to On, there will be Three Adjustable Parameters
Slope Time
*The Time of Change from 100% Voltage to Crater Current
–Factory Preset at 0.5s
Crater Current
*The Percentage of the Welding Voltage used to fill the crater
–Factory Preset at 60%
C.C. Time (Crater Current Time)
*The Length of Time welding at the Crater Current percentage
–Factory Preset at 0.5s
Please read the Owner’s Manual for more detailed instructions and advanced welding options.
Spot Weld

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Double Pulse and Double Level Guide - MIG225Ai
Alternate the wire speed between high wire speed and low wire speed while maintaining penetration for
a continuous weld that is visibly similar to a TIG weld. Ideal for vertical or overhead welding.
Double Pulse and Double Level are the same except:
*When Process is set to SHORT, you can enable Double Level
–Alternate wire speeds with a standard short process
–Recommended for Steel
*When Process is set to PULSE, you can enable Double Pulse
–Alternate wire speeds with a high frequency voltage pulse
–Recommended for Aluminum
To Enable or Disable Double Pulse
1. From the Home Screen, Press and Hold until you see the Main Menu (Process Parameters)
2. Turn to scroll down to Double Pulse (Double Level) and Click to select
3. Click to select ON or OFF
4. Press and Hold to exit back to the home screen
*For best results run a short test bead to first set your desired Voltage and Average Wire Speed before using Double Pulse
Double Pulse has Four Adjustable Parameters:
Frequency
*Set the Number of Cycles per Second
–Example: 2Hz Frequency will run 2 full cycles per second
(a) 1 cycle = 1 high wire speed phase and 1 low wire speed phase
–Factory Preset at 1.5Hz
Pulse Step
*Set the Change in Wire Speed from the average wire speed
–Example: 50i Pulse Step (±50 inches per minute) with system wire speed set at 250ipm
(a) 300ipm at high speed and 200ipm at low speed
–Factory Preset at 39i
Duty Cycle
*Set the Percentage of Time for High Wire Speed during a cycle
–Example: 60% duty cycle
(a) 60% high speed and 40% low speed
–Factory Preset at 50%
Arc Correct
*Fine adjustment for Voltage during High Wire Speed phase
–Example: +2.5 Arc Correct will increase the Voltage by 2.5V
(a) Only effects the Voltage during high wire speed
–Factory Preset at 0.0V
Please read the Owner’s Manual for more detailed instructions and advanced welding options.
Double Pulse/ Level