Care & Maintenance - PRO-POINT PN105I Manuel D'utilisateur

8958696
CORRECT TRAVEL SPEED
The correct travel speed keeps the arc at the leading edge of
the weld pool allowing the base metal to melt sufficiently to
create good penetration, fusion and wetting out of the weld
pool, producing a weld deposit of good quality (Fig. 30).
WIRE TYPES AND SIZES
Use the correct wire type for the base
metal being welded. Use stainless steel
wire for stainless steel and steel wires for
steel.
Use a smaller diameter wire for thin base
metals. For thicker materials use a larger
wire diameter and larger machine, check
the recommended welding capability of
your machine.
As a guide refer to the Welding Wire
Thickness Chart in Table 3.
GAS SELECTION
The purpose of the gas in the MIG process is to protect/shield the wire, the arc and the
molten weld metal from the atmosphere. Most metals when heated to a molten state will react with
the air. Without the protection of the shielding gas, the weld produced would contain defects like
porosity, lack of fusion and slag inclusions. Some of the gas becomes ionized (electrically charged)
and helps the current flow smoothly.
The correct gas flow is also very important in protecting the welding zone from the atmosphere. Too
low of a flow will give inadequate coverage and result in weld defects and unstable arc conditions.
Too high of a flow can cause air to be drawn into the gas column and contaminate the weld zone.
USE THE CORRECT SHIELDING GAS
Co is good for steel and offers good penetration characteristics,
2
the weld profile is narrower and slightly raised than the weld profile
obtained from an Argon/Co2 mixed gas. Argon/Co2 mix gas offers
better weld ability for thin metals and has a wider range of setting
tolerance on the machine. Argon 75%/Co2 25% is a good all round
mix suitable for most applications (Fig. 31)
CARE & MAINTENANCE
1. Maintain the tool with care. A tool in good condition is efficient, easier to control and will
have fewer problems.
2. Inspect the tool fittings, alignment, hoses and power supply cord periodically. Have damaged
or worn components repaired or replaced by an authorized technician. Only use identical
replacement parts when servicing.
3. Exposure to extremely dusty, damp, or corrosive air is damaging to the welding unit. In
order to prevent possible failure or fault of this welding equipment, clean the dust at regular
intervals with clean and dry compressed air.
4. Follow instructions for lubricating and changing accessories.
5. Only use accessories intended for use with this tool.
6. Keep the tool handles clean, dry and free from oil/grease at all times.
7. Maintain the tool's labels and name plates. These carry important information. If unreadable
or missing, contact Princess Auto Ltd. for replacements.
WARNING! Only qualified service personnel should repair the tool. An improperly repaired
tool may present a hazard to the user and/or others.
16
GASLESS MIG WELDER PN105I
WELDING WIRE THICKNESS CHART
MATERIAL
THICKNESS
24 Gauge (.60 mm)
22 Gauge (.75 mm)
20 Gauge (.90 mm)
18 Gauge (1.0 mm)
16 Gauge (1.2 mm)
14 Gauge (1.9 mm)
0.118 in. / 3 mm
0.196 in. / 5 mm
RECOMMENDED WIRE DIAMETERS
MIG SOLID WIRE
0.023 in. 0.030 in. 0.035 in. 0.30 in.
For technical questions call 1-800-665-8685
V1.0
Fig. 30
GASLESS FLUX-
CORED WIRE
0.035 in.
Table 3
Fig. 31