THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 2
Jun 1/03
4H20
61-20-00
C. Rigging and Adjustment (Refer to Figure 1.)
(1) Prior to adjusting the propeller governor high rpm setting, the control linkage should be
thoroughly checked for correct function.
NO
TE: A calibrated tachometer must be used to ascertain propeller high rpm setting. Final
high rpm adjustment must be checked in flight or during high speed taxi.
To check rigging, move propeller control full forward. The propeller governor high rpm stop
must contact the adjusting screw when the cockpit control is 0.010 to 0.030 inch from the
cockpit mechanical stop.
(2) If adjustment is required complete the following steps.
(a) Insure that the governor control arm is located approximately as shown on Figure 1.
(b) Adjust control cable end hardware to obtain cockpit control cushion. Insure there is
adequate thread engagement of clevis end and rod end bearing (witness holes) after
adjustment.
(c) Insure that the control cable assembly is not bottoming internally.
(3) Start engine, park 90° to wind direction and warm in normal manner.
(4) To check high rpm low pitch setting, move the propeller control all the way forward. At this
position the governor speed control arm should be against the high rpm fine adjusting screw.
With the throttle full forward, observe engine rpm which should be adjusted as follows:
(a) Shut down the engine and remove the upper engine cowl.
(b) Adjust the governor by means of the fine adjustment screw to:
1
2700 RPM for 6X; and,
2 2500 RPM for 6XT.
To do this, loosen the high RPM fine adjustment screw locknut and turn the screw in a
clockwise direction to decrease engine speed or in a counterclockwise direction to
increase engine speed.
NOTE: One revolution of the fine adjustment screw will increase or decrease the engine
speed approximately 20 rpm.
(c) Reinstall upper engine cowl and repeat step b to ascertain proper rpm setting.
(d) After setting the proper high rpm adjustment, run the self-locking nut on the fine
adjustment screw against the base projection to lock.
(e) Ascertain that the governor control arm is adjusted to the proper angle on the control
wheel as shown in Figure 1.
(5) With the high rpm adjustment complete, the control system should be adjusted so that the
governor control arm will contact the high rpm stop when the propeller lever is 0.010 to 0.030
of an inch from forward stop on the power quadrant. To adjust the control travel,
disconnect the control cable end from the control arm, loosen the cable end jam nut and rotate
the rod end to obtain the desired lever clearance. Reconnect the cable end and tighten jam
nut.
(6) It is usually only necessary to adjust the high rpm setting of the governor control system, as
the action automatically takes care of the positive high pitch setting.
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