Replacement Of Wheel Brake Disc - Piper PA-24 Comanche Service Manual

PIPER COMANCHE SERVICE MANUAL
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FIGURE 1-31. REPLACING BRAKE DISC
d.
Slide the brake disc
(-4)
on the wheel and poaUoft the cyliDder housing apinst the
disc.
e.
Se~
the
cylinder
housint
to
the torque plate
with
the 3 cap bola (15) ud safety.
£. Connect the brake litIe co the brake
cylinder
hOusiq.
,. Bleed the brake system as described in pananph
6-88.
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NOTE
The fint three or four brake applications. aner
brake reliJUnl.
should be
moderate to allow the resins in the
lininl
co bum out slowly. The
burninl out or
resins is also
the determine factor in the uscfullife of the
brake
Iininl
ud if hiJh
speed
stOps
are
avoided. whenever possible,
brake
linint
Life and brake pcrfol"D1&ftCe
will
be considerably improved.
6-87. Replacement Of Wheel Bake Dile. (C1evdInd)(Rcfcr to Fipre 6--31.)
Riveted Brake
Disc.
a. Remove eight rivees amchinJ brake discs
to
inner wheel half by
chiseling
off heads inside drum
and punchllll
them
out.
b. Place wheel half assembly
intO
boilinc
water for' minutes and remove disc from wheel casting by
usc of
pry
bats.
c. Clean cutin! thoroughly and apply heavy coat of zinc chromate paint in brake disc recess.
d. Place whecl castinl into boiling water for a few minutes. remove and insert ncw replacement brake
disc into the expanded wheel. Ascertain that brake disc
is
property seated in recess in wheel half.
e. Clamp wheel half ud bRke disc assembly in vile and locate ciCht 3/16
in~
drill. dnJl through disc
with
an
11l6~ inch drill. and then re-drill with a 3/16 inch drill.
£.
Rivet whccl half to brake disc with eiplt
AN~2'
AD6-7 rivets. Sec riveE from both ends EO be
cerum rivet has properly filled the hole and file rivet heads
flush
with tire scat and paint.
LANDING GEAR AND BRAKE SYSTEM
ISSUED: 8/18/72
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