I had a franken-seat set up with a late style captain back (with adjustable armrests) grafted onto the original seat - got a new set fairly cheap as one seat had missing arm rests so intended to move mine over for a complete set - hand't realised at first they were the earlier non-adjustable!
Anyway, there's a bolt on outer armrest, which I've removed but arm rest not budging. I've given it a fair whack but wanted to check it just that bolt before breaking something - I know the later arm rests are held in with a roll pin.
Do I just need to give this a bigger whack?

Cheers