Wednesday, February 5, 2020

Installing and tightening tie rod of main engine on ship

Installing and tightening of tie rod after taking it out

1)clean the thread and try the nuts, ease up is required. Check landing area,square up is required.
2) Apply grease lubricants to the threads and landing
3)Insert tie rod.

4)Now tighten the tie rods bolts , tighten the lower nuts first and then the upper nuts, by hand using a spanner.
5)Now install hydraulic tool across a pair of tie bolts. Always a pair of tie bolts should be tightened at a time.
6)Tighten the tie bolts as per maker instruction as regards to tightening stages,, sequence, hydraulic pressure, checking of strech.

7)Check with thin feeler guage to ensure that there is no clearance at the nuts or landing tools.
8) Remove hydraulic tool, apply the thread protective cap.
9) Tighten the intermediate clamping or pinching screws.

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