Try talking to James Nilssons 1st, they are a very knowledgeable bunch who have worked wonders at times. The winch
knowledge in that building is probably 2nd to none worldwide. You want to see their test rig, enough to get a grown man looking for a cold shower
... but I digress.
If no joy PM me and I'll suss deeper, I deal with both almost daily so I will be able to get deeper in than you can.
I think you'll find that due to the winches age you have a motor that just isn't made anymore, a lot have gone by the wayside in the last 8-12 years, in favour of purpose built windlass motors, which are better really. Back in the day most motors were adapted from other industries so often had next to no moisture protection, used a lot more battery
for less pull and were often huge. These days the good winch
makers have some pretty tricked up motor options if you want them.
FYI - the 'Nilsson Maxwell' company became 2, James Nilsson
and Maxwell, a long while back so if you have one of those it's best to speak to James Nilsson
Ltd rather than Maxwell. And as a interesting snippet of info, until a mass move to manufacturing in a eastern country a few years back many Simpson Lawrence
winches (now all Lewmar
branded) were actually made by James Nilsson in NZ. And for another snippet, a stupid one, after JN made the winches they were shipped to the UK and the NZ dealers had to import
them back. They weren't allowed to buy 'pre-shipping', how silly it that?
Woww, 6 posts after someone used that dreaded 'A' word and no scrapping, that makes a pleasant change