your vedios are very helpful in understanding the practical work of engine room . I request you to keep this extraordinary work and also request you to come up with more vedio soon...
It's a good video, nice. But i have one suggestion, you can tight the mechanical seal cover after installing the rotor to the casing, then tight the all coupling bolt. Then you can check the rotaion ( alignment is correct or not). If okk then u can see how much the tension on the mechanical seal. You can see directly if you not tight the seal cover, then you can tight the seal cover properly. If the seal tension is very less, there is a chance to leakages. And seal seal tension is very high, there is a chance to damage the mechanical seal.
Firstly highly appreciate ur comments......and u mentioned it right ...u can proceed with tightening the cover accordingly to prevent leak and over tightening...yes we can do that way...
and if tighten or slightly tighten seal cover. while moving assembly from workshop to bottom. if rotor hits stair or something seal might break over there only. we can tie seal cover to rotor coupling while moving from one place to other. specially for big pumps.
Hey good question..... We can't put the mechanical seal without taking out the shaft,as there is impeller at one end and a coupling flange on other end...Also to adjust the distance of mechanical seal the shaft has to be taken out...