Hartzell HC-D2MV20-3 Series, Owner'S Manual And Logbook

Page: 93 / 204

Propeller Owner’s Manual
140
INSTALLATION AND REMOVAL
61-00-40
Page 3-29
Nov/02
(4) Reverse Pitch Hardware Adjustment
CAUTION: REVERSING CONTROL MUST PULL
THE SHORT END OF THE VALVE
LEVER TIGHT AGAINST THE BRACKET.
REFER TO FIGURE 3-3.
(a) Adjust the lever
1 Loosen the clamp that holds the push-pull reverse
control housing.
2 Install the housing away from the propeller until
the lever is hard against the bracket.
3 Tighten the clamp.
a With the cockpit reverse control line forward
(in the case of the reversible propeller)
and just off the locked position, attach this
control line at the propeller to the short end
of the lever on the valve. Make sure that the
clamping bolt is tight against the bracket on
the cylinder.
NOTE: When moving the cockpit reverse
control lever into the locked
position, there should be an
increase in tension due to the slack
being taken up in the lines.
(b) Secure the reverse control housing
CAUTION:
MAINTAIN A MINIMUM CLEARANCE
OF 0.12 INCH (3.2 MM) BETWEEN
THE JACK PLATE AND THE HUB
SHOULDER TO PREVENT EXCESSIVE
LOADING OF THE THRUST BEARINGS
IN THE PROPELLER AND ENGINE
(c) Make sure there is a minimum 0.12 inch (3.2 mm)
clearance between the jack plate and the hub
shoulder when in full reverse.
(d) If the clearance is not sufficient, place a shim(s)
between the rear cone and engine.
(5) Slowly turn the propeller on the engine shaft to identify if
there is clearance between the blade clamp assemblies
and the valve assembly.