THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
Effective: 05/05/04
4-21
F.
Secure the front clevis end to the propeller reversing lever with the attaching
spacer, bolt, washers, castellated nut and cotter pin.
G.
Secure the Nf governor-interconnecting rod to the Nf governor reset arm with the
attaching bolt, washer, castellated nut and cotter pin.
H.
Secure the governor speed select lever to the propeller speed control cable with
the attaching bolt, washer and nut.
I.
Ensure the governor's stop plate contacts both the high RPM stop screw and the
feathering stop screw, when the propeller control lever in the cockpit is operated.
Ensure that there is sufficient cushion at both positions on quadrant. If linkage will
not allow proper travel, adjust the control linkage at either rod end or move speed
select lever on the governor to obtain necessary travel.
J.
Connect coupling nut of the pneumatic (Py) front tube to propeller governor.
Tighten nut; torque to 90 to 100 lb. in., and lock wire.
K.
Check engine front linkage rigging.
L.
Accomplish propeller governor operational checks in accordance with the
appropriate Pratt & Whitney Maintenance Manual.
M.
Install the forward engines cowling.
PROPELLER CSU HIGH RPM ADJUSTMENT
If a high RPM adjustment is required, turn the high RPM stop screw on the governor
head clockwise to decrease or counter clockwise to increase RPM as required to obtain
1,700 RPM propeller speed (NP). After adjustment, ensure there is sufficient cushion at
both the feathered and high RPM positions at the propeller lever on the throttle
quadrant. Lock wire the high RPM stop screw after adjustment.
PROPELLER OVERSPEED GOVERNOR REMOVAL
A.
Remove the forward engines cowling.
B.
Remove the safety-wire and disconnect the electrical plug from the governor
solenoid valve.
C.
Remove the four self-locking nuts and plain washers securing the governor and
remove the governor from the left side of the reduction gear housing.
PROPELLER OVERSPEED GOVERNOR INSTALLATION
A.
Install a new gasket on the mounting pad.
B.
Apply clean engine oil to the governor splined drive.
C.
Position the governor on the mounting pad and install the four plain washers and
self-locking nuts. Apply a torque of 125 to 135 inch-pounds to the mounting nuts.
(Make sure you have the two ground wires under one of the nuts.)
D.
Connect the electrical plug to the governor solenoid valve.
E.
Reinstall the forward cowling.
F.
Perform over speed governor check (prop test).
Содержание S2RHG-T65 TURBO THRUSH
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