Replace the mechanical seal if there is excessive leakage through it. The following precautions are to be taken while replacing a mechanical seal failure.

Keep all the seal parts clean during handling. Any dirt or foreign particles on the seal surface could cause premature seal failure.

Vibration of pump set may cause seal failure. Hence try to prevent vibrations in the pump set.

Cleaning of the housing is necessary before fixing counter face (stationary ring – ceramic or metal ring in rubber L ring) to eliminate all the dirt in that area.

The outer diameter of the stationary L rubber ring and housing should be slightly moistened with 10% of liquid soap and 90% of clean water. Using a brush, moisten the shaft and interior of seal with soap solution. Do not immerse seal in the solvent.

Always use fitting tube for fixing the counter face. Ensure that the counter face is perpendicular to the shaft. Do not hammer the fitting sleeve.