Propeller Owner's Manual
140
TESTING AND TROUBLESHOOTING
61-00-40
Page 4-9
Rev. 1 May/11
H. Insufficient High-Low Pitch Control (Non-governing Reversing
Propeller)
(1) Adjust the reversing control if it is not tight
NOTE: If the reversing control does not pull the short
end of the valve lever (pivot point) up tight
against the bracket, it will be impossible to
satisfactorily adjust the high-low pitch control. It
may also be impossible to obtain full high pitch.
(a) Loosen the clamp that holds the push-pull control
housing.
(b) Slide the housing away from the propeller.
(c) Pull the lever pivot back against the bracket.
(d) Tighten the clamp.
(e) Position the cockpit reverse control line forward, just
off the locked position.
(f) Attach the control line at the propeller to the short
end of the lever on the valve.
1 Make sure the clamping bolt is tight against the
bracket on the cylinder.
(g) Move the cockpit reverse control lever into the locked
position.
NOTE: There should be increased tension in the
line due to the slack being taken up.
I. Cruise RPM Too High (Non-governing Reversing Propeller)
(1) Improper piston travel
(a) Bottom the piston in the cylinder.
NOTE: Make sure the piston is actually bottoming
in the cylinder. The piston should extend
from the cylinder about 1/32 inch
(0.794 mm). If the piston does not bottom,
remove the piston and eliminate the cause.
(b) Check the travel of the piston by measuring between
the jack plate and the shoulder of the hub. Travel
should be 1.062 to 1.094 inches (26.98 to
27.78 mm).
(c) Shim behind the rear cone, if necessary, to provide
correct travel.
Summary of Contents for HC-D2MV20-3 Series
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