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Q. Why is there is groove in my knurled drive roll?
PIB 0008-A Insulated Drive Rolls.
Q. Can I use the Python on ANY Cobramatic wire feeder?
Yes. Provided the feeder has the ability to control the purge gas with a solenoid. The Python gun does not have a mechanical valve which controls the flow of the shielding gas, it relies on a gas solenoid for control.
The list below shows the MK manufactured kit required, in order to operate the Python:
| Model Number |
|
Kit P/N |
| Cobramatic, Models 150-003* & 005 |
|
P/N 005-0674 Gas Control/Trigger Latch Kit |
| Cobramatic, Models 150-203* & 205 |
|
Same as above. |
| Lincoln Electric Cobramatic |
|
Same as above. |
| CobraMig 260 (S/N 01060001 & Later) |
|
Same as above. |
| Cobramatic II, Model 150-104* |
|
P/N 005-0196 Timer Kit |
| * Metal door models only. Does not apply to plastic door models. |
Q. The barrels for the Python and the Prince XL look alike, are they interchangeable?
No. Gun barrel lengths are designed specifically for each and they cannot be swapped. Forcing the wrong barrel into the wrong gun will only result in damage to the o-rings or the gun body.Available Python barrels and their maximum Duty Cycle ratings are as follows:
| Python Barrel P/N |
|
Gas Cup P/N |
Air Cooled, P/N 003-2128
Replaced by 003-2147 when stock is depleted. |
|
Standard -
200Amps @ 100%
#8 Heavy Duty Brass Cup, P/N 621-0401 |
| |
Optional -
200Amps @ 100%
#10 Heavy Duty Brass Cup, P/N 621-0402
#12 Heavy Duty Brass Cup, P/N 621-0403 |
| |
|
|
| Water Cooled, P/N 003-2104 |
|
Standard -
300Amps @ 100%
Water Cooled Cup Adapter, P/N 621-0101
#8 Air Cooled Cup, P/N 621-0159 |
| |
Optional -
400Amps @ 100%
#10 Water Cooled Cup, P/N 621-0065 |
| |
|
|
Air/Water Cooled, P/N 003-2147
Can be used in AIR or WATER cooled Python guns.
Duty Cycle* rating can be increased just by changing gas cup size. |
|
Standard -
#10 Finned Copper Cup, P/N 621-0250 - 225Amps @ 100% |
| |
Optional -
#8 Finned Copper Cup, P/N 621-0249 - 225Amps @ 100%
#10 HD Finned Copper Cup, P/N 621-0251 - 250Amps @ 100%
#12 HD Finned Copper Cup, P/N 621-0252 - 250Amps @ 100% |
| * Duty Cycle rating for Python Air/Water Cooled Barrel is given for use with Water Cooled guns. |
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MK Products will continue to supply all air-cooled Python guns with the standard AIR-COOLED BARRELS and the Heavy Duty Brass Cups until stock is depleted. Once depleted, the Air/Water barrel with the #10 Finned Copper Cup will become a standard item on the air-cooled Python guns ONLY.
Q. What is the proper idler roll tension for the Python?
As received and adjusted from the factory.
The Python uses a cam-lever design, pre-set at the factory, to deliver the proper amount of pressure between the idler and drive rolls. Changing this factory setting will result in erratic wire control.
Q. How do I replace the potentiometer?
The replacement and calibration of the Python potentiometer must be performed in accordance with proper MK Products Assembly Techniques.
Contact MK Products Technical Support for proper instruction on replacing and calibrating the Python potentiometer.
Q. How do I replace the micro-switch?
The replacement of the Python trigger micro-switch must be performed in accordance with proper MK Products Assembly Techniques.
Contact MK Products Technical Support for proper instruction on replacing the Python trigger micro-switch.
Q. What is the difference between the Finned Copper and the Heavy Duty brass gas cups?
Because of their finned design and specific material thermal coefficients, the Finned Copper cups provide greater variability in duty cycle performance over the Heavy Duty brass cups.
The Heavy Duty brass cups were all designed using one wall thickness, the Finned Copper cups utilize two different wall thickness options for better performance.
| Finned Copper Gas Cup |
|
Wall Thickness |
#8, P/N 621-0249
#10, P/N 621-0250 |
|
0.080" |
| Heavy Duty Finned Copper Gas Cup |
|
|
#10, P/N 621-0251
#12, P/N 621-0252 |
|
0.125 |
MK Products will continue to supply all air-cooled Python guns with the standard AIR-COOLED BARRELS and the Heavy Duty Brass Cups until stock is depleted. Once depleted, the Air/Water barrel with the #10 Finned Copper Cup will become a standard item on the air-cooled Python guns ONLY.
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