BUG-O Systems CW-7 - Manual (Page 5)

5
INTRODUCTION
The CW-7 Circle Welder is designed for welding of nozzles into vessels or domed heads utilizing SUB-
ARC, MIG or FLUX CORED PROCESS, with gas shielding. The CW-7 mounts on a 3-Jaw Chuck welding
diameter 6" to 50" O.D.
Features
• Amperage & wire speed control
• Wire feeder with one set of drive rolls
• 1/12 HP P.M. motor and rotational speed control
• 500 AMP gun & cable assembly
• Gas shielding kit with 120 VAC solenoid valve
• 5/8" (16 mm) gas cup
• Burn back control
• 50 ft. (15 m) power cable
• 50 ft. (15 m) gas shielding hose
• 50 ft. (15 m) weld cable
• Quick disconnects for all cables
• Weld contact switch
• Cold wire inch switch
• Wire direction switch
• Pre and post flow controls
• Wire reel adaptor for 60 lb. (27 kg) spools
• Adjustable vertical and horizontal torch positioning system
• Rise and fall cam assembly with 7" (178 mm) of travel
• Brushes and collector rings for welding current, rated at 500 AMPS 100% duty cycle
• Brushes and collector rings for all controls, eliminates cable and hose wrap
SETUP AND OPERATION
POWER SOURCE
Use only constant voltage type power sources with this circle welder machine. If using a multiple process
power source, be sure that it is set for constant voltage output as per the instructions in the manual for
the power source. Set the power source polarity switch or properly connect the electrodes and work leads
for the correct electrode polarity.
GUNS AND CABLES
All circle welders come equipped with a gun and cable assembly. It is our recommendation that at least
once a week the liner be taken out of the cable and soaked overnight in a solvent solution. To keep the
wire moving it is also recommended that a felt clip be saturated with a product like Ferro Slick and fed
through the incoming tube of the wire feeder at least once a day.