. ,
PIPER
COMANCHE
SERVICE
MANUAL
7-3 TroubiOlbooanl_ Troubl
..
peculiar
to
the powet pla.at
1ft
lilted in Table VII-Ill in the
bad<
of
this
section.
aio"l
with their probable cau
...
."d
.......
ted remedies. When
troublcshooans
e"lin",
IfOUlld the
magneto prunllY circuit before pcrformiDfl any checks
on
the ignition sysrcm.
74.
EDline Cowlinc.
7-5. Removal
Of
Eap
Cowliag.
L AKertaia
that
the
muter
switch UId IftaIDcto switch
..
1ft
in the
off
position.
b.
Rdcuc
the
thrft
cowl fastenen
on
ncb
side the eriline
of
the
""line
compartmeat.
c.
Retnove
atachiag
screws from the
tOP
cowl
at
the
fuewallllld
nose cowl.
d.
Discoanect cowl
.ttachment
straps from rap cowl.
e.
Retno.e
the
two
....
ching nutS.
wwen
Illd
s=w
securing the
top
cowl channel
to
fuewall.
f.
Lift
the
tOP
cowl from
the
e"line
:wcmbly.
g.
Disconnect the air bellows from air mcor by
looscniDtl
the quartet rum fureners.
h.
DiscoMcc:t all
dnins
and hoses artached to
the
bottom
cowl.
•.
Disconncc:t the
twO
suppOrt
rubes
from the
boRom
cowl.
J.
Disconnect the nose gear door retraction rod
at
the nose
geu
strUt~
k. Retnoving attaching screws from bORom cowl and
remo.e
by pulling down and forward.
H.
CI
....
inI. Inspection And
Repair
Of EDJiac Cowl.
•.
CI
..... cowling
with.
ruiable
cl
...
Ding
solvent
."d
wipe dry
with.
clean cloth.
b. Inspect. cowling for dentS.
cncks.
loose ri.crs elo
...
te bol
..
and
dam
..
ed or missing fasteners.
c.
Repair all defectS to prevent further
dam
....
;-7. Installation
Of
Easine
CowliDg.
~.
Position
the
lower
cowling
ana
sec:ure with screws
to
the
firewall bulkhead .
b.
Attach the
twO
suppOrt rubes to the aft section
of
the lower cowling.
c.
Attach the nose gear door rettacuon rod to the gear
saur.
d.
Connect
air hoses and drain lines to the
bottom
cowUnS.
c.
Attach
the carburetor air bellows to the alr
mter
With
quaner
tum
fasteners.
Position
the
tOP
cowl
on
tile nose section
and
secure
the
twO
cowl channels to
the
firewall
WIth
screws, washers
ad
nuts.
g.
Secure
the
top
cowling
to
the
firewall
bulkhead
and
nose
scctlon
with
screws.
b.
Attach the
tOP
cowl hold down .traps to
e.ch
cowl
Npport
channel.
7·8 Propeller.
CAUTION
Before performing any service
functions on the propeller.
ucertam
that
the
muter
switch
is
"OFF",
the magneto sw1tches are
"OFF"
(grounded) and the mixture conrrol
is
.n the "IDLE CUT-QFF"
position.
2Al3
POWER
PLANT
ISSUED:
8/18/72
To Next Page