Operation; Performance Data Plate & Duty Cycle - Forney Easy Weld 140 MP Manual De Instrucciones

12.
Cut off the excess wire that extends past the end of the nozzle.
13.
Fine tune the wire drive pressure with the pressure arm adjustment knob (G).
a. Turn the wire drive pressure adjustment knob clockwise, increasing the drive pressure until the wire seems to
feed smoothly without slipping. NOTE: If TOO MUCH pressure is applied you can crush the wire and create
wire feeding problems. If TOO LITTLE pressure is applied, the wire will slip on the drive rolls and wire will not
feed.
b. When the drive pressure is set correctly, there should be no slippage between the wire and the drive roller.
But if an obstruction occurs along the wire feed path, the wire should then slip on the drive roller. This can
be checked by squeezing the wire between two fingers with moderate force as it comes out of the gun. If this
stops the wire from feeding, increase pressure until the wire feeds through your fingers without issue.
14.
Double check your spool tension: After feeding the wire and releasing the trigger, the wire coming off the spool
should not remain under tension (in a straight line from the spool to the WIRE FEEDER (14)). It should relax a
little bit and take on some of the curvature the coiled wire naturally reverts to. It should also not relax so much
that the wire begins to loosen on the spool.
CORRECT
KEEP THE GUN STRAIGHT. WHEN FEEDING A NEW WIRE THROUGH THE LINER,
MAKE SURE THE WIRE IS CUT CLEANLY (NO BURRS OR ANGLES) AND THAT
AT LEAST 1" FROM THE END IS STRAIGHT (NO CURVES). FAILURE TO FOLLOW
THESE INSTRUCTIONS COULD CAUSE DAMAGE TO THE LINER.
WHEN CHECKING THE CORRECT EXIT OF THE WIRE FROM THE GUN DO NOT
BRING YOUR FACE NEAR THE GUN. YOU MAY RUN THE RISK OF BEING
WOUNDED BY THE OUTGOING WIRE. DO NOT BRING YOUR FINGERS CLOSE
TO THE FEEDING MECHANISM WHEN WORKING! THE ROLLS, WHEN MOVING,
MAY CRUSH FINGERS. PERIODICALLY CHECK THE ROLLS. REPLACE THEM WHEN
THEY ARE WORN AND COMPROMISE THE REGULAR FEEDING OF THE WIRE.

Operation

Performance Data Plate and Duty Cycle
On the machine, there is a plate that includes all the operating specifications for your new unit. The serial number
of the product is also found on this plate.
The duty cycle rating of a welder defines how long the operator can weld and how long the welder must rest and
be cooled. Duty cycle is expressed as a percentage of 10 minutes and represents the maximum welding time
allowed. The balance of the 10-minute cycle is required for cooling.
For example, a welder has a duty cycle rating of 30% at the rated output of 90A. This means with that machine,
you can weld at 90 A output for three (3) minutes out of 10 with the remaining seven (7) minutes required for
cooling. The duty cycle of your new welder can be found on the data plate affixed to the machine. It looks like the
diagram below. Referring to the sample below, the "X" row lists duty cycle percentages while the "I2" row lists the
amp draw corresponding to the duty cycle. Various duty cycles at other amperages are listed on your data plate.
16
INCORRECT
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