MK Products MK Cobramatic Pro Series - Manual (Page 21)

Cobramatic ® Pro Series Owner’s Manual - Page 14
JP5: Int/Ext
JP5 is for the internal or external demand signal for a potentiometer controlled outside the wirefeeder.
Mainly for use during wheel welding, or automatic track welding.
JP6: Torch Select
This is the torch selector jumper, which is factory set for the Python gun.
Because of variations in the torch motor gear boxes, type of drive rolls used, and other factors, the
wire feed may be slightly off. To compensate for these variations, the wire feed may be calibrated as
follows:
1. Install jumper horizontally across the bottom 2 pins 9 and 10 on JP6.
2. Set the display to 300 IPM using gun potentiometer.
3. Set the Pre-Purge control to off (JP3 jumper at No Pre-Purge)
4. Feed out ten seconds of wire and measure the length. With a 300 IPM, the length should be 50
inches in ten seconds.
5. If the wire is less than or more than 50 inches, increase (clockwise) or decrease (counter clock-
wise) by adjusting P3.
6. Repeat steps 4 and 5 until 50 inches of wire is measuered.
7. Remember put JP3 jumper to its default factory position (horizontal top right).
Location 1-2:
Python/CobraMAX/
Cobra MX
Location 3-4:
Prince XL
Location 5-6:
Cobra SX
Location 7-8:
For future use
Location 9-10:
For Calibration
(See below)