Circuit Breaker Repairs > Bushings
Another common leak on OCB’s is bushing leaks. If the base mount connecting flange is leaking, it will be drilled and injected, provided the gasket lies in a groove. Another leak found on OCB bushings is porcelain to base mounting flange leak as seen in Figure 1.
![Figure 1](https://www.tdsleakseal.com/wp-content/uploads/2016/07/bushing-leak-repair-fig1-300x200.jpg)
Figure 1
Figures 2 through 5 show this type of leak being repaired.
![Figure 2](https://www.tdsleakseal.com/wp-content/uploads/2016/07/bushing-leak-repair-fig2-300x92.jpg)
Figure 2
![Figure 3](https://www.tdsleakseal.com/wp-content/uploads/2016/07/bushing-leak-repair-fig3-300x200.jpg)
Figure 3
![Figure 4](https://www.tdsleakseal.com/wp-content/uploads/2016/07/bushing-leak-repair-fig4-300x200.jpg)
Figure 4
![Figure 5](https://www.tdsleakseal.com/wp-content/uploads/2016/07/bushing-leak-repair-fig5-sm.jpg)
Figure 5