MAX PROP Easy, Instruction Manual

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PRACTICAL EXAMPLE CONCERNING
THE FORWARD MOTION PITCH
In the housing for the forward motion pitch it has been screwed, up to
abutment, a screw/rod stamped 22, therefore the propeller has now
a forward motion pitch of 22 degrees. By unscrewing this screw/rod
by one complete turn, the propeller will take a new forward motion
pitch of 18 degrees (22-4=18). It is therefore possible to set a forward
motion pitch of 18 degrees without having the screw/rod with the
number 18 stamped on it.
PRACTICAL EXAMPLE CONCERNING
THE BACKWARDS MOTION PITCH
In the housing for the backwards motion pitch it has been screwed, up
to abutment, the screw/rod stamped number 1, therefore the propeller
has a backwards motion pitch of 16 °. By unscrewing this screw/rod
by one complete turn, the propeller will take a new backwards motion
pitch of 20 ° (16 + 4 = 20). It is therefore possible to set a backwards
motion pitch of 20 ° without having the screw/rod with the number 2
stamped on it.
b. Eight equidistant grooves are carved in the head of each screw/rod. These
grooves have dual capacity: the first is the one described in the previous
practical examples, that is locking the screw/rod up to abutment by fastening
it with a threaded grub screw. The second function is to precisely define an
intermediate rotation (not in the stop/end position) and lock the screw/rod in
the said intermediate position. It is in fact possible to unscrew each screw/
rod even by a single interval between one groove and the next, or one eighth
of a turn (since the grooves are eight), and lock the screw/rod in said position.
c. As the unscrewing of a complete turn of each forward pitch adjustment screw/
rod decreases the forward motion pitch by four degrees, the unscrewing of
a single interval between one groove and the following one will decrease
the forward motion pitch of half a degree (4 : 8 = 0.5). Unscrewing a single
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