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

Page: 795 / 1956

PAGE 3
Feb 28/07 4D13
32-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
2. Nose Gear Oleo
A. Disassembly
The nose gear oleo assembly may be removed and disassembled from the gear oleo housing with
the gear removed from or installed on the airplane.
(1) Place the airplane on jacks. (refer to Jacking, 7-10-00).
(2) Place a drip pan under the nose gear to catch spillage.
(3) Remove air and oil from the oleo strut. Depress the air valve core pin until the strut chamber
pressure has diminished, remove the filler plug and, with a small hose, siphon as much
hydraulic fluid from the strut as possible.
(4) To remove the complete strut and fork assembly from the oleo housing:
(a) Cut the safety wire on the three cap bolts that retain the steering arm to the strut. Remove
the bolts.
(b) Remove the snap ring, thrust washer, and washers (if any) at the top of the strut housing.
(c) Pull the complete strut and fork assembly from the bottom of the housing.
(5) To remove the piston tube and fork from the strut:
(a) Separate the upper and lower torque links by removing the link connecting bolt assembly.
Separate the two links. noting the amount of spacer washers between the two links.
(b) Compress the piston tube. Reach up along the tube and release the snap ring from the
annular slot at the bottom of the strut.
(c) Pull the piston tube with its component parts from the strut.
(d) The piston tube components may be removed from the piston tube by removing the
retainer from the annular slot at the top of the piston tube.
(e) Slide the bearing assembly (with inner O-ring and teflon retainer), wiper ring, washer and
snap ring off of the piston tube.
(6) To remove the orifice tube:
(a) Remove the orifice tube retaining nut from the top of the strut assembly.
(b) Pull the orifice tube down and out of the strut.
(c) The orifice plate is removed from the bottom of the orifice tube by releasing the snap ring
that holds the plate in position.
(7) To remove the piston tube plug with O-ring:
(a) Remove the bolt assembly.
(b) Insert a rod up through the hole in the body of the fork.
(c) Push the plug out through the top of the tube.
B. Assembly
(1) Ascertain that parts are cleaned and inspected.
(2) To install the piston tube plug, first lubricate the tube plug and O-ring with hydraulic fluid (MIL-
H-5606) and install the O-ring on the plug. Lubricate the inside wall of the tube, insert the plug
into the top of the tube and push it to the fork end. Align the bolt holes of the fork, tube and
plug and install the bolt assembly.
(3) If desired, cement a cork in the hole in the bottom of the fork body to prevent dirt from entering
between the fork and tube.