１４
Install the CO
2
pressure flow regulator on the gas cylinder, fasten the nuts;
Connect the plug of CO
2
pressure flow regulator heater to the socket in the back panel;
Connect the φ8 gas line to the output air cock of CO
2
pressure flow regulator, and connect the other end of
gas line to input air cock, clamp it with hoop. Please use standard shield gas, or there will be welding defect.
七、
Operation
1.
Operating instructions
A.
Installation of electrode wire (see figure 9 as reference)
Open up the left upper panel of welding machine, stand the panel on it;
Adjust the catch of electrode wire reel, the stretch out direction of catch should be same as the axis direction
of wire reel shaft, put wire reel on the shaft. Adjust the catch of electrode wire reel, the stretch out direction
of catch should be vertical with axis direction of wire reel shaft, fast it to prevent rolling out.
Make sure the wire slot diameter of wire feeding wheel is same as the electrode wire diameter;
Loosen the clamp handle of wire feeder, put up the wire wheel, pull out the wire tip, cut off the deformation
part, insert the wire tip into the wire guide pipe, it reach torch connector through guide tube, press the wire
wheel and fasten it with suitable strength;
B.
Make sure the diameter of contact tip is same as the used electrode wire;
C.
Put three phase switch on, press the button of "Manual wire feed", adjust welding current to get suitable wire
feeding speed, loosen the button till 15---20mm electrode wire is sticked out.
D.
Put the switch of "welding/gas checking" on "gas checking" position, unscrew the switch of gas cylinder with a
suitable speed till get the wanted gas flow value, and then put the switch on "welding" position;
E.
Adjust the button of "welding current" by actual needed current;
F.
If welding current is confirmed, the welding voltage can be figured out by the formula of U
（
welding voltage
）
=14
＋
0.05×I(welding current), adjust the button of "welding voltage" and make it displayed on digital meter;
G.
Change-over switch of self-lock & non-lock: when it is put on"self-lock", press the torch button and then the
arc can be stroke, loosen the button, welding will keep on normally, press the button again, welding finishes.
When it is put on "non-lock", press the button, welding begins, loosen the button, welding finishes;
H.
After finishing the above adjustment, wear required safety equipments, then normal welding process can be
operated;
