Kemppi MIG 2530 - Manual (Page 9)

EN
2.12 Adjustment of tightness of reel brake
A
Brake force is adjusted through hole in locking device of reel hub by screwing the control
screw (A) with screwdriver.
Adjust brake force as so big that the wire is not allowed to become too loose on the reel so
that it would spill from the reel when the rotation of the reel stops. Need for brake force is
increased with increase of wire feed speed.
Since the brake loads for its part the motor, you shouldn’t keep it unnecessarily tight.
2.13 Shielding gas
The MIG shielding gas consists of carbon dioxide, mixed gases and argon. Shielding gas
flow rate is determined by the amount of welding current. The typical flow rate of gas in the
welding of steel is 8–15 l / min.
The following installation instructions are valid for most gas flow regulator types:
A C F
G
B
E
D
Parts of gas flow regulator
A. Gas bottle valve
B. Pressure regulation screw
C. Connecting nut
D. Hose spindle
E. Jacket nut
F. Gas bottle pressure meter
G. Gas hose pressure meter
1. Step aside and open the bottle valve (A) for a while to blow out possible impurities.
2. Turn the press regulation screw (B) of the regulator until no spring pressure can be felt.
3. Close the needle valve if there is one in the regulator.
4. Install the regulator on bottle valve and tighten the connecting nut (C) with a wrench.
5. Install the hose spindle (D) and jacket nut (E) into the gas hose and tighten with a hose
clamp
6. Connect the hose with the regulator and the other end with the wire feed unit.
Tighten jacket nut.
7. Open the bottle valve slowly. The gas bottle pressure meter (F) shows bottle pressure.
7
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