Lubrication; Main Gear Removal; Main Gear Installation; 100-Hour Inspection - Raytheon BEECH BARON 58P Maintenance Manual

BEECHCRAR
BARON 589 AND BARON 58TC
MAINTENANCE MANUAL
d.
Unsnap the
canvas cover
and disconnect the
MAIN GEAR AND DOORS
MAINTENANCE
uplock and downlock assemblies from the strut.
PRACTICES
e.
Open
the brake cylinder bleed
ports
and pump all
fluid from the
system.
MAIN GEAR SHOCKABSORBERS
f. Disconnect the
hydraulic line where the flexible
hose couples
to
the
tubing
on
the landing
gear.
To check the fluid level in the landing
gear
shock absorbers,
g.
Disconnect
the safety
switch wire.
deflate the strut
by releasing the air through the valve and
h. Remove the bolt
attaching
the lift
leg
to
the
strut.
permit the strut to
fully compress, then
remove
the filler valve.
i. Remove the
access
door in the lower surface of
the wing leading edge for
access
to
the forward hinge bolt
retaining nut and
remove
the
nut.
The
rear
strut
brace
hinge
WARNING
bolt is accessible
by lowering the flap.
j. Remove
cotter pins and
nuts
(8), washers (5), bolts
Do
not
remove
the filler valve until all air
(2 and 3),
washers (4 and 7), and
bushings (6) from the front
pressure has been released
or
it may be blown
and
rear spars
(10 and
11).
off with considerable force, causing injury
to k. Lower
the main gear assembly away from
the
personnel
and
property damage, aircraft,
being careful
not to
bend the skin
at
the wheel well
edge.
I
If the fluid level is low, add Mll-H-5606
or
Mll-H-83282 MAIN GEAR INSTALLATION
hydraulic
fluid
(13,
Chart
207,
91-00-00) until the fluid (Figure 201)
overflows
slightly. Slowly cycle (compress and extend) the
strut to
expel
any
trapped
air. Add fluid,
as
necessary, and
a.
Carefully
position the main gear assembly
in place
install the filler valve.
against
the front and
rear spars
(10 and 11).
b. Align bolt holes and install
bushing (6), bolts (2 and
With the aircraft resting
on
the
ground and the fuel cells full,
3),
washers
(4, 5, and 7), and nuts (8). Torque
to 250 to 400
inflate the main
strut
until 3 inches of the piston is
exposed.
inch-pounds.
Install
new
cotter
pins.
Rock the aircraft gently to
prevent possible binding of the
piston in the barrel when inflating.
NOTE
CAUTION
Use
one
100951S016XF washer
between
main gear and spar
having
a
maximum total gap
Do not
inflate the struts while the aircraft
is
on
of .016
to
.031 inch. Use
one
100951X032XF
jacks,
since sudden extension
or
over-inflation of
washer if gap is .032
to
.047 inch.
the struts
may bend the
torque
knee.
c.
Install the
access
door in the lower wing leading
LUBRICATION
edge.
d.
Install the bolt attaching the lift leg
to
the
strut.
Lubricate the main wheel bearings and grease fittings
as
e.
Connect
landing
gear
safety switch wire.
detailed in the Lubrication
Chart, Chapter
12-20-00. f.
Connect the brake hydraulic
line.
g.
Connect
the uplock and downlock assemblies
to
the strut and snap the
canvas cover
in place.
MAIN GEAR REMOVAL
h. Connect the
inboard landing gear door
actuating
(Figure 201)
rod
to
the forward door
hinge.
i. Install the outboard
landing
gear door to the
When removing the landing
gear,
take
care
to
preserve the landing
gear
strut.
original adjustments
at
the rod end fittings
to
facilitate
j. Bleed the brake.
reassembly, k. Operate
the landing gear and check
for proper
rigging of the uplock and doors.
a.
With the aircraft
on a
jack, retract
the gear until the
inboard landing gear door is in the fully
open
position.
100-HOUR INSPECTION
b. Remove the outboard landing gear door from the
landing
gear
strut. ACTUATOR
AND MOTOR Check
the actuator and
c.
Disconnect the inboard landing gear door
motor
for
security, visible
damage and condition. Check
actuating rod at the forward door hinge.
motor wiring for breaks and chafed
or
deteriorated
32-10-00
Page
201
Nov 30/78