6.
Recheck wheel alignment. If the alignment is correct, safety the castellated nut with cotter pin.
7.
If a new link on the top left main gear had to be installed or it had to be reversed during the alignment check, it will be necessary to check the gear safety switch (squat switch) bracket for engagement and locking in place. If the large machine surface of the link is inboard, the bracket is mounted with the small rivet hole next to link. (Refer to Sketch A, Figure 32-4.) This hole should be aligned with centerline of the link and a .096 inch hole drilled .150 inch deep. Insert an MS20426AD3-3 rivet in the hole. This locking rivet is held in place by the flat washer, castellated nut and cotter pin. If link has to be reversed, then the bracket and bolt are also reversed. (Refer to Sketch B, Figure 32-4.)
8.
Check adjustment of landing gear safety switch (squat switch).
MAIN GEAR DOOR.
REMOVAL OF MAIN GEAR DOOR.
1.
With the landing gear extended, disconnect the door retraction rod from the door by removing nut, washers and bolt.
2.
Remove the door from the wing panel by bending the door hinge pin straight and from the other end pulling out the pin.
3.
The door retraction rod may be removed from the gear housing by cutting the safety wire and removing the attachment bolt and washer. Note the number of washers between rod end bearing and housing.
CLEANING, INSPECTION AND REPAIR OF MAIN GEAR DOOR.
1.
Clean the door and retraction rod with a suitable cleaning solvent.
2.
Inspect the door for cracks or damage, loose or damaged hinges and brackets.
3.
Inspect the door retraction rod and end bearing for damage and corrosion.
4.
Repairs to a door may be replacement of hinge, repair of fiberglass and painting.
INSTALLATION OF MAIN GEAR DOOR.
1.
Install the door by positioning the hinge halves of the door and wing, and inserting the hinge pin. It is recommended a new pin be used. Bend the end of the pin to secure in place.
2.
Install the door retraction rod by positioning the rod at its attachment points at the door and strut housing. At the door attachment, thin washers are inserted at each side of the rod end bearing and it is secured with bolt, washer and nut. At the strut housing, place washers between rod end bearing and housing not to exceed .12 of an inch to obtain proper clearance and secure with bolt. Safety bolt with MS20995C41 wire.
3.
Check that the all around clearance between the door and the wing skin is not more than .20 of an inch.
32-10-00
Page 32-32 Revised: December 6, 2002
2H8
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
THIS PAGE INTENTIONALLY BLANK
32-10-00 Page 32-33 Revised: December 6, 2002
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
THIS PAGE INTENTIONALLY BLANK
32-10-00 Page 32-34 Revised: December 6, 2002
2H10
THE NEW PIPER AIRCRAFT, INC.
PA-44-180
AIRPLANE MAINTENANCE MANUAL
NOSE GEAR AND DOOR.
NOSE GEAR OLEO.
DISASSEMBLY OF NOSE GEAR OLEO. (Refer to Figure 32-5.)
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 Chapter 7.)
2.
Place a drip pan under the nose gear to catch spillage.
3.
Remove air and fluid from the oleo strut. Depress the air valve core pin until 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 cylinder and fork assembly from the oleo housing, cut safety wire at the top of the unit and remove cap bolts that attach steering arm and aligner guide bracket to the top of the oleo cylinder.
5.
Disconnect the shimmy dampener by removing each cotter pin, nut, washer and bolt that connects the dampner to the oleo cylinder and housing.
6.
Release and remove the snap ring and washer(s), if installed, at the top of the housing, and pull the complete cylinder and fork assembly from the bottom of the housing. The upper and lower housing bushings should remain pressed in the housing.
7.
To remove the piston tube and fork from the cylinder, first separate the upper and lower torque links by removing the link connecting bolt assembly and then separate the two links. Note spacer washer between the two links.
8.
Compress the piston tube, reach up along the tube and release the snap ring from the annular slot at the bottom of the oleo housing.
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