－
E13
－
7. WELDING PREPERATION (continued)
7.2 Mounting of the Feed Roll
Confirmation of the wire size marked on the feed roll
Use the proper feed roll according to the wire size.
The feed roll of
φ
1.2mm wire size is mounted on the
CM-7471 wire feeder when it is shipping.
Replacement of the feed roll
1. Remove the hexagon socket cap screws fixing the feed roll.
2. Bring down the pressure handle, and then lift the pressure roll holder.
3. Pull up the feed roll from the wire feeder.
4. Mount the new feed roll, with the wire size marked on the wire feeder facing out.
Adjusting of pressure and straightner
･
Turn the pressure handle to set to the correct pressure force for your wire diameter.
･
Set both pressure handle gauge to same value.
･
Wire straightner is an optional part. (Refer to 9.3.)
Recommended wire pressure adjustment
Pressure handle Wire straightner
(
φ
mm)
(
φ
inch)
Gauge
Gauge
1.6
1/16
2-3
2-3
1.2
3/64
1-2
3-4
1.0
0.035
1-2
4-5
1.6
1/16
2-3
2-3
1.2
3/64
1-2
4-5
1.6
1/16
3-4
2-3
Mild steel
1.4
0.055
3-4
3-4
Stainless steel
1.2
0.045
2-3
3-4
Blazing
1.0
0.040
2-3
4-5
0.9
0.035
2-3
4-5
0.8
0.030
1-2
4-5
Wire diameter
AL/MG (HARD)
AL/PURE (SOFT)
*Applicable wire diameter of brazing wire is
φ
0.8, 0.9, 1.0 and 1.2.
*Refer to section 7.3 for wire feeding of other than aluminum.
Hexagon socket cap screws
Feed roll
Groove for
φ
1.2 wire size
Wire size mark
