MK Products CobraMAX - Manual (Page 10)

CobraMAX™ Owner's Manual - Page 2
A seven conductor control cable is used on the CobraMAX ™ gun. The gun
end of the control cable is secured to the gun with a boot clamp and soldered
to the pot assembly, tirgger and liquid leads. Slack is left in the electric cable
as it exits the back of the gun to prevent cable breakage. The cabinet end
has a seven pin “W” clocked amphenol connector.
Section B operation
General
The CobraMAX ™ gun 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 gun motor,
causes the wire to literally float friction-free through the wire conduit. The
24VDC gun motor is controlled by a three and three-quarter (3 3/4) turn
potentiometer in the gun 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.
Trigger Sensitivity
The amount of trigger lever travel can be shortened
for a “quicker” or “more responsive” action.
A more sensitive trigger lever is produced by
reducing the gap between the trigger lever and
the micro-switch lever. By turning-in the trigger
sensivity adjustment screw, it closes the gap
between the trigger lever and the micro-switch
lever. This will enable the operator to increase the
sensivity of the trigger lever.
Sensitivity Adjustment
With the wire feeder turned on (with or without
welding wire loaded), turn the screw in until the
micro-switch is activated. Once activated, the gun
and wire feeder motors will begin feeding wire.
Retract the screw accordingly until the system is
deactivated and adjusted to the operators’ liking.
Drive Roll and Idler Rolls
General
The CobraMAX ™ gun comes standard with a knurled drive roll and a grooved
idler roll, which will handle both steel and aluminum wire with diameters from
.030-1/16 inch. Optional insulated V-groove drive rolls are also available for
aluminum wire if desired (see optional kits).
Drive roll tension is accomplished with a unique spring-loaded pressure
screw. The CobraMAX
™ comes from the factory with the pressure
adjustment screw preset.
no ADJUSTMEnT IS rEQUIrED For ALL
SIzES AnD TyPES oF WIrES.
Drive Roll Installation/Removal
Note:
Neither of the handles needs to be removed to access the drive or idler rolls
1. Pull the cam lever away from the idler roll. This will relieve the pressure