Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 684 / 1956

PAGE 10
Feb 28/07 30-10-00
3I20
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(4) From the centerline of the leading edge to the lower trailing edge of the deicer, use the
pressure handle squirt can to soften the bond between the deicer and the wing skin.
(5) Use Toluene or Peerco #321 to clean the dry cement off the exposed wing area, and clean the
area thoroughly with MEK (methylethylketone).
B. Installation.
See Chart 2, for required materials.
(1) Leading Edge Preparation.
(a) Dry fit deicer on leading edge. Make sure deicer air connection fits in air connection hole
in leading edge and cut-outs are properly aligned. Use deicer as template to mask
installation area with one (1) inch masking tape. For non-recessed deicers, add at least
one-half (1/2) inch extra around perimeter of deicer. Mark deicer centerline on masking
tape at each end.
NOTE: Masking accurately will eliminate the need for cleaning off excess cement later.
(b) Remove paint and primer in masked area with stripper or sand painted/primed area to
roughen. Use clean pressurized air or dry cloth to remove sanding particles before
proceeding with deicer installation.
NOTE: Deicers can be installed on alodined or anodized surfaces, and over zinc
chromate primer that cannot be removed by scrubbing with solvent.
(c) Clean the metal surfaces thoroughly, at least twice, with MEK or Toluene. For final
cleaning, wipe the solvent film off quickly with a clean dry cloth before it has time to dry.
(d) Fill gaps of skin splices that lead under deicers with any epoxy compound meeting PMS-
C1004.
(e) On wings only, apply fuel barrier cement over fuel tank rivets and edges of fuel tanks
which will lie under the installed deicer. Proceed as follows:
1 Stir cement thoroughly to blend solids.
2 Apply one even brush coat and let dry one (1) hour.
3 Apply a second coat and let dry two (2) hours.
(f) Remove the sump plugs from the air connection grommets. In some cases, it will be
necessary to remove sections of doped fabric used to cover the air connection holes.
Draw out the ends of the non-kink hose section so that they protrude through the
connection holes in the leading edge. If hose is cracked or deteriorated, replace with new
hose.
(2) Deicer Preparation.
CAUTION: DO NOT USE MEK TO CLEAN SMARTBOOTS TM OR ESTANE® AS MEK WILL
ATTACK ESTANE® MATERIAL.
Moisten a clean cloth with Toluene and carefully clean the rough, back surface of the boot at
least twice. Change cloths often to avoid recontaminating the cleaned area.