Main Gear Door Removal; Main Gear Door Cleaning, Inspection And Repair; Main Gear Door Installation - Piper PA-44-180 SEMINOLE Maintenance Manual

5. Should a condition exist that all spacer washers have been removed and it is still necessary to move the
wheel further in or out, then it will be necessary to turn the torque link assembly over. This will put the link
connecting point on the opposite side allowing the use of spacers to go in the same direction.
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.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
2G12
3 2 - 1 3 - 0 3
Page 32-20
Revised: May 15, 1989