Cabin Door Installation; Door Locking Mechanism Adjustment - Piper PA-24 Comanche Service Manual

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PIPER COMA!"CHE SER\'JCE :\1A't'AL
FIGl'RE
4·~.
DOOR I'STALLATlO'
k. Install interior trim panels.
I.
Rctcr
to Table
11-11
for proper torque, of attachment hardware.
4-:~9.
Installation of Cabin Door. The entrance door on the Comanche is made of formed aluminum
assemblies spot \\ elded together. This type of construction gives a ridged assembly. but still retains the
flexibility
needed for proper fitting of the door.
When m... talling a new door. follow the procedure given below:
a. Temporarily
mount the
new
door on the fuselage using two 10-32 bolts at the hinge
points.
As the
door
will
he
removed
from time to time during fitting. the bolts will make the door easy to
remove.
b. Swing the door closed and check for alignment of the main door latch and the auxiliary latch with
their respective latch striker plate. If the door fails to align. remove it and reposition the two serrated door
hinge bushings. (See I. Figure 4-5.) Repeat the above procedure until the door is properly aligned.
c. Once the door is properly aligned with the door frame. the procedure of trimming and fitting the
door can he started. Ising a small pair of metal shears and a file. trim the door edges until there is an
approximate clearance of I
l< inch between the fuselage skin edge and the door edge.
(See Figure 4-5.1
d.
After the door is fitted. use a short piece of I 4 inch diameter dowl and a hammer to contour the
edges of the
door
to
align
with
the fuselage skin.
e. With the door
removed
use sandpaper to smooth the rough edges. Replace the door using the
required hinge pins. staked with roll pins. Install the door holding assembly. Apply a light coat of oil to the
latch assernblie ....
4-40. Adjustment Of Door Locking Mechanism. (PA-24-::!50. Serial
'as.
24-2844 to ::!4-32R4) The
follow ing
j,
the procedure for adjusting the door latching mechanism on the Comanche. (Refer
to
Figure
4-tl.1
a. With only the door opening mechanism and handle installed. adjust rods (3)and (4) so that latches
(I)
and
(21
are fully extended when the door handle is in lock position (full forward):
(I)
retracted when
(2)
is in closed position (neutral handle position - no force applied): and finally
(I)
and (2) retracted when
door handle is in open position (handle in full rear position.)
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REVISED:
4/10/81
lE17
STRt'CTl'RE