21
MAINTENANCE
Flux belt must be properly adjusted, during operation, the latex flux belt should be snug and both roll centerlines
are parallel. Overly tight belt tension would cause the rollers to skew bending both rollers and cause the belt to roll
off.
The flux belt is considered a consumable and should be replaced when it is worn or seriously burnt.
Both SEW motors and reducers of the BGW drive system should be regularly lubricated, please refer to SEW
operating instruction manuals for detail maintenance instructions.
The serrated flanged drive wheel would need to be replaced if it is worn and loose the necessary grip to keep the
girth welder travel steadily on the tank shells.
belt
horizontal
expansion
mechanism
Belt Replacement Procedure
1.
Hold expansion top wheel against steel plate, loosening screw
bolt and screw nut as diagram indicates.
2.
Back out horizontal expansion mechanism from steel plate,
taking down belt and replacing with a new belt.
3.
Tighten screw bolt and screw nut and extend horizontal
expansion mechanism to make belt against steel plate.
4.
Flex expansion top wheel backward to make it break away
from the steel plate.
expansion
top wheel
screw nut
screw bolt
