Anyone know more about these OLD BNO main isolators ?

[LukeD]

Ive mentioned it in another thread but thought I would make a specific post !! From a quick look its a "piston type " affair .The leaver lifts up and pulls out the rod in the middle .A bar has to be inserted to the rod that then allows the lever to roll upwards pulling etc .


I'm old ...but never seen such a beast and if possible DONT want to touch it as i hear they can be hard to to turn back on due to the connections moving sometimes ...

 

[LewisM]

Ive mentioned it in another thread but thought I would make a specific post !! From a quick look its a "piston type " affair .The leaver lifts up and pulls out the rod in the middle .A bar has to be inserted to the rod that then allows the lever to roll upwards pulling etc .


I'm old ...but never seen such a beast and if possible DONT want to touch it as i hear they can be hard to to turn back on due to the connections moving sometimes ...

Not much help to you but Luton town hall built 30s has lots of similar looking equipment that has long been decommissioned, same font and colour so yeah if that hasn’t been switched off for 30+ years then I wouldn’t touch it as you know it won’t turn back on!

 

[UKMeterman]

If it is that old, is there a risk it will go bang when you turn it on or off?

 

[pc1966]

I would be very reluctant to operate something like that unless I know it had been regularly used (e.g. one per year factory maintenance). Even if no BANG! FLASH! risk as metal enclosed, I would suspect internal contacts, fulcrums, etc, to be seized up and risk that permanent mechanical damage occurs.