Hi Frank,
I still haven't compensated my linear actuators, they are a work in
progress.
I'm intending to use silicone as although they work with WD40 I found the
WD40 destroys some plastics in time & some internal electrical
components
weren't able to be potted. When oil compensated the oil has to go
somewhere
when the piston retracts so I've mounted two pipes on top with bike inner
tube
between them for this purpose. I have a drain pipe on the bottom & are
sheathing
it all in fiber glass mainly to seal it & hold the extra pipes in
place.
The guy I bought them off said most linear actuators had a hole to exhaust
&
suck in air to compensate for the piston moving in & out. I don't know
what Minn kota
have done in that regard.
Re the LEDS indicating position; I'm guessing there are a series of
magnetic
switches or micro switches triggered by a cam or magnet at the base of the
piston.
A couple of months back we discussed the idea of proximity switches
activated by
the rudder or dive plane sweeping past them to indicate position, which I
thought had merit.
Regards Alan
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