BUG-O Systems CW-18 - Manual (Page 39)

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PREVENTATIVE MAINTENANCE / CW-18 CIRCLE WELDER, CONT’D.
Refer to CW-18 Electrical Component Chart. (Pg. 15)
Wire Feeder Assembly Item #1:
Check brushes for wear. Brushes should be replaced when their length is less than 1/4 inch. Replace
strain relief on wire if pulled out of motor housing.
Brush Holder & Support Item #4:
Inspect brush holder. Make sure constant tension is being applied on the brushes. Brushes should
move freely within the brush holder. Check brushes for arc build-up. If brushes are pitted they will need
replaced. Remove the brushes and sand them to ensure a smooth contact surface. Make sure all
fasteners are tight.
Wire Feed Control Item #6:
Open control box, use an air hose to blow out dust and dirt. Check all wires for breaks and replace if
necessary. Check all electrical connectors and plugs. If an electrical component fails refer to NA-3 Wire
Feeder Control electrical component chart for replacement parts or return for service.
Small Brush Retainer Assembly Item #7:
Inspect black brush holders for cracks and replace if needed. Check and make sure all wires are
soldered properly to the holders. Replace the brushes when their length is less than 1/2 inch long.
Remove the brushes and sand them to ensure a smooth contact surface. Make sure all fasteners are
tight.
Terminal Block Item #8:
Inspect the plastic terminal strip and make sure it is not cracked, replace if necessary. Make sure all
terminal connections are tight. Make sure all ground wires are connected to the mounting screws of the
terminal strip.
Rotation Control Item #12:
Open control box use an air hose to blow out dust and dirt. Check all wires for breaks and replace if
necessary. Check all electrical connectors and plugs. If an electrical component fails refer to CWO-
6210-CW18 Rotation Control electrical component chart for replacement parts or return for service.
EVERY TWELVE MONTHS:
Refer to CW-18 Exploded View & Parts List. (Pg. 12-13)
Transmission 5:1 Assembly Item #18:
Inspect for excessive wear and tear. Keep the transmission assembly clean and lubricate with
Lubriplate #630-AA.
P.M. Motor Assembly Item #21:
Bodine gear motor lubrication. Fill gear motor to oil level indicator with worm gear oil conforming to
AGMA#5EP compounded (SAE#90) oil or Bodine lubricant (#L-23). Do not overfill.
2" Bearing With Fasteners Item #22:
Do not grease the bearing, it is greased for life by the manufacturer. If the grease fitting has not been
removed and plugged we suggest that you do so now. Earlier models may not have been plugged at
time of assembly.
Wire Feeder Assembly Item #36:
Apply graphite grease to the gear teeth. Inspect the drive roll portion of the assembly, clean as
necessary. Do not use solvents on the idle roll because it may wash the lubricant out of the bearings.
Do not apply grease to the drive rolls.