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SECTIONS
HANDLING, SERV & MAINT
PA-32R-301, SARATOGA II HP
8.15 LANDING GEAR SERVICE
The main lahding gear uses Cleveland Aircraft Products 6.00 x 6 wheels
with 6.00 x 6, eight-ply rating tires and tubes. The nose wheel uses a
Cleveland Aircraft Products 5.00 x 5 wheel with a 5.00 x 5 six-ply rating, type
ill tire and tube. (Refer to paragraph 8.23.)
Wheels are removed by taking off the hub cap, cotter pin, axle nut, and
the two bolts holding the brake segment in place. Mark tire and wheel for
reinstallation; then dismount by deflating the tire, removing the three
through-bolts from the wheel and separating the wheel halves.
Landing gear oleos should be serviced according to the instructions on
the units. The main oleos should be extended under normal static load until
14.00 ± .25 inches of oleo piston tube is exposed, and the nose gear should
show 3.25
±
.25 inches. To add air to the oleo struts, attach a strut pump to
the valve assembly near the top of the oleo strut housing and pump the oleo
to the desired position. To add oil, jack the aircraft, release the air pressure in
the strut, remove the valve core and add oil through this opening with the
strut extended. After the strut is full, compress it slowly and fully to allow
excess air and oil to escape. With the strut still compressed reinsert the valve
core and pump up the strut as above.
In jacking the aircraft for landing gear or other service, two hydraulic
jacks and a tail stand should be used. At least 250 pounds of ballast should be
placed on the base of the tail stand before the airplane is jacked up. The
hydraulic jacks should be placed under the jack points on the bottom of the
wing and the airplane jacked up until the tail skid is at the right height to
attach the tail stand. After the tail stand is attached and the ballast added,
jacking may be continued until the airplane is at the height desired.
The steering arms from the rudder pedals to the nose wheel are adjusted
at the rudder pedals or at the nose wheel by turning the threaded rod end
bearings in or out. Adjustment is normally accomplished at the forward end
of the rods and should be done in such a way that the nose wheel is in line
with the fore and aft axis of the plane when the rudder pedals and rudder are
centered. Alignment of the nose wheel can be checked by pushing the
airplane back and forth with the rudder centered to determine that the plane
follows a perfectly straight line. The turning arc of the nose wheel is 22.5°
+1- 2° in either direction and is limited by stops at the rudder pedals.
REPORT: VB-1669
8-10
ISSUED:
JUNE
30, 1997
REVISED:
JUNE
12, 2000
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