Piper COMANCHE PA-24-180 Service Manual page 357

PIPER COMANCHE SERVICE MANUAL
7A-30. Removal Of Engine. (PA-24-260. Serial Nos. 244000 co 244782 ind. and 24-784 to 24-4803
ncl.) (Refer to Figure 7A8.)
a.
Turn off 1ll cockpit switches and disconnect the batery ground cable it the battery.
b. Move the fuel control lever located on the fuselae floor between the two front eats to the OFF
posiion.
c. Remove engine cowling. (Refer co paragraph 7A-5.)
d. Drain engine oil if desued.
e. Remove propeller. (Refer to paragraph 7A-18 )
NOTE
Where a quesuon may arise u where to reconnect hose. line or wire, the
item at the separation should be identified (taugged) to facilitate
reinsralltion. Open fuel, oil, vacuum lines and fimngs should be
covered to prevent conamunuion.
f.
Disconnect vacuum hose from vacuum pump.
g. Disconnect engine breather.
h. Disconnec oil temperature lead and tachometer drive cable from the engine accessory housing.
1. Disconnect mgnero "P" leads and retard lead (left magneto only) from magnetos.
J.
Disconnect cabin heat and defroster air ducts from left muffler shroud.
k. Disconnect fuel pump blas tube.
1. Disconnect the manifold pressure Line. No 6 cylinder.
m. Diconnect fuel pump dram hose from pump.
n. Disconnect fuel pump inlet and outlet lines.
o. Remove oil cooler lines.
p. Disconnect exhaust gas temperature probe from No. 6 cylinder exhaust suck.
q. Disconnect stater cable from staner.
r.
Disconnect throttle, mixture and governor control cables and remove cable clamps.
s.
Disconnect oil pressure and fuel pressure lines.
r.
Disconnect elec-tical leads from alternator. remove clamps securinng wires o engine and draw them
aft to the firewall.
u. Disconnect cylinder head temperature lead from No. 5 cylinder.
v. Disconnect bonding sraps from engine at sides of mount.
w. Disconnect cop spark plug leads and pull them aft through the rear engine baffles.
x. Disconnect exhaust stack hangers from nose gear support tubes.
y. To prevent damage to the tail when removing the weight of the engine from the airplane, attach a
stand to the tail skid.
z. Attach a one-half ton (minimum) hoist to the lifting strap and relieve the tension on the engine
mounts.
a. Check the engine for any attachments remaining to obstruct its removal.
bb. Remove the cotter pin. nut. washer, front rudder shock mount and sleeve from each mounting
bolt
cc. Slide bolts out of attaching points and swing engine free. placing it on a suitable support.
POWER PLANT
ISSUED: 8/18/72
2 C23