[Shipbuilding Technology] P1 - Keyless ship propeller install and remove - Keyless method 

Good job ❤

When Take out the coupling or propeller , why do you make gap 5 mm for mechanical stopper. It will be chance to impact and damage the piston of hyd nut, just extend hyd nut piston more than 5 mm with no any gap hold pressure on the low pressure pump and start high pressure pump till oil drop then then slowly release of low pressure pump. the coupling/ propeller will dismount more gentle.

Good teknik

Is a good technic,only if shaft and propeller are just new...but after months of work...i don't know...perhaps needs a hammer...the wrong via for this job,but the only one...

这么复杂