Piper Comanche PA-24 Service Manual page 535

PIPER COMANCHE SERVICE MANUAL
c. Connect the conttol cable end to the governor control arm.
f. Adjust governor per p .... graph 78-15.
g. Fasten the cowling on both sides.
78-15. Adjustment Of PropeU .. Governor. (Ref .. to Figure 78-3.)
a. Stan the engine in accordance with the dircc[jons given in the Owner's Flight
~anua1
and a!1ow to
wumup.
b. Push the "PROPELLER" cockpit control as far forward as it
will
go. At this position the governor
speed adjusting control lever will be against the hi-<pm fine adjusting screw.
c. Observe enginc speed. Adjust the governor by means of the fine adjustment screw for 2650 rpm.
To do this. release the fasteners and lift the side cngine cowling. Loosen the finc adjustment screw locknut
and turn the hi-f'pm fine adjustment screw in a clockwise direction to decrease engine speed and a
counterclockwise rotation to increase cngine speed. One revolution of the fine adjustment screw increases
or decr .... s the propener speed approximately IS RPM.
d. After setting the engine
rr
at
2650, run the self-locking nut on the fine adjustment screw against
the base projection to lock.
e. Pull the "PROPELLER" cockpit control aft to the low RPM position.
f. Observe engine speed. Set to 1550 rpm either by threading the fitting at the governor control arm
onto the cable, or by turning it in the direction tending to remove the fitting from the cable, depending on
whether it is required to decrease or increase engine speed, respectively. It will be necessary, of course, prior
to adjusting, to remove the self-locking nut and disconnect it from the governor control arm and to release
the fitting locknut.
g. Reconnect cable to governor control arm, tighten fitting locknut, and recheck engine by moving
cockpit control in and out of the appropriate settings.
h. Fasten the cowling on both sides
78-16. Removal Of Engine.
78-17. Installation of Engine.
NOTE
Refer to latest Lycoming Service Instruction No. 1241.
78-18 Engine Shock Mounts. Replacement of engine shock mounts. Refer to Figure 78-4 for the proper
arrangement of engine shock mount assemblies The top shocks arc assembled
50
the silver colored 'shock is
aft and the gold colored shock is forward. The lower shock mounts arc installed opposite of the tOP shock
mounts Torque shock mount bolts to 450 to 50010. Ibs and safety.
REVISED: 4/10/81
POWER PLANT
2F5