MK Products Python Rev.D - Manual (Page 9)

Python Owner's Manual - Page 2
Torch Lead Connections
Power Cable - Air Cooled
A #2 AWG power cable is used on the Python
® air cooled torch. The torch
end is threaded into the torch body. The power cable fitting connects to the
power block in the Cobramatic ® wire feed cabinet.
Power Cable - Water Cooled
Python
® water cooled torch utilizes a power/water cable with a #4 AWG cable
inside a 5/8” (16MM) diameter hose. When water is used with this cable and
the #10 water cooled gas cup (P/N 621-0065), the system is rated at 400
amps @ 100% duty cycle.
Conduit
The Python
® torch comes standard with a poly-lined conduit, for feeding
aluminum wire. The longer fitting with a shallow groove is used on the torch
end. A set screw located on top of the torch handle secures the conduit in
place.
Gas Hose
The gas hose is secured over the barbed gas fitting with a tie wrap. The
cabinet end of the gas hose uses our standard gas fitting (1/8” - 27 nps).
Water Hose
If so equipped; one end of the water hose is secured over the barbed water
fitting with a tie wrap and the other end is connected to the center fitting
on the power block.
Electric Cable
A seven conductor control cable is used on the Python
® torch. The torch end
of the control cable is secured to the torch with a boot clamp and soldered
into the pot assembly and micro switch connectors. Slack is left in the
electric cable as it exits the back of the torch to prevent cable breakage. The
cabinet end has a seven pin “W” clocked amphenol connector.
Section B Operation
General
The Python ® torch maintains a constant, steady, uniform wire feed speed,
regardless of curved or looped wire conduit. The constant push exerted by
the slave motor in the cabinet, combined with the pull of the torch motor,
causes the wire to literally float friction-free through the wire conduit. The
24VDC torch motor is controlled by a three and three-quarter (3 3/4) turn
potentiometer in the torch handle.
Controls and Settings
Potentiometer
The laterally-positioned potentiometer is located in the lower end of the
handle, providing up to 800 ipm with 3 3/4 turns.
Micro Switch
The micro switch assembly consists of the micro switch, and leads.