Hi all... having spent an inordinate amount of time fitting the Arplast prop
( which I am still convinced is a neat job) I do believe that the
instructions for mounting and fitting the potentiometer and associated locating
rod are
horribly inadequate.(only a matter of perhaps 1/8th inch each way),
Adjusting the length of the rod to the potentionmeter is almost impossible
as it has to be done with the unit fitted to the engine top casing. In this
position it is impossible to move the plastic arm on the potentiometer spindle,
- despite what the instructions say.
After many hours of trial and error,(mostly error), I arrived at the
obvious solution of making the mounting of the potentiometer have slotted holes
so
that the fixing bolts can be moved until the cockpit readout is correct.
Lord know how others have done this potentially simple but excrutiatingly hit
and miss task and wasted hours if not days (in my case) attempting to do the
virtually impossible.
Maybe my method will be a help to others or perhaps some one has found a
simpler method.
My pot etc is fitted aft of the vacuum pump and these is little or no room
to work in. Without the pump the method as VERY sketchily described in the
notes may be possible. I do not believe that this is the case with the vacuum
pump fitted.
Does anyone with a similar setup have any better ideas?
Patrick
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