Is very old method,and i used 50 year ago,in marine we use to,inflat,propellor,propellor shaft,fo removel this typee gear,we use hydraulic hand pump,and to flitted back this gear,is to be heated in oven ti increase the inner dia
basically its a hydraulic hand pump with a pipe or hydraulic hose, nice job . I've worked with small hydraulic pumps and cylinders if you have any questions about how to repair them ,please ask me .
Mashallah. Ye jho machines hain hum lok sabhi bana sakte. Deko Japan ko, dunya main sabhi se ache machines banate hain. Humain engineering pricipals ko apply kerna hain. Hawaye jaz ke jet engines ke principals bhoti ahsan hain, kyun hum lok na banaye. Experiment karo choti se banana - mark 1. Phir barha.