Shimmy Damper - Raytheon BEECH BARON 58P Maintenance Manual

BEECHCRAFT
BARON 58P AND 58TC
MAINTENANCE MANUAL
NOTE
c.
insert
a
6-3? threaded rod into
the floating piston and
remove
the piston,
It is recommended
that the
nose
using
extreme
care
when
moving
the O-ring
strut
inflation dimension and the seal of the
floating
pi
ston past
the
tire inflation
pressure
be
care-
drilled holes in the
piston
rod.
fully adhered
to.
Properly
inflated
tires
and
struts
reduce d. Push the piston rod
to
the clevis
the possibility
of
ground damage end and
fill the barrel with MIL-H-5606
occurring
to
the propellers, hydraulic fluid.
(13,
Chart 202,
Exe
re
i
se
caution when taxiing
12-20-00).
over
rough
surfaces.
e.
Slowly
actuate
the pi
ston
rod,
f.
The shock
strut
piston
must
be allowing the fluid
to
flow into the clevis
clean. Remove foreign
material by wiping and chamber, then
return
the piston
to
the
the
strut
with
a
cloth dampened
in
clevis end of the barrel.
hydraulic fluid.
f.
Refill
the
displaced fluid and
SHIMMY DAMPER
replace the end seal,
scraper
ring
and
internal
snap
ring.
To check the fluid
level
in
the shimmy
damper, insert
a
wire
of approximately
g.
Fill
the piston
rod with fluid.
1/16-inch diameter
through
the hole
in the
disc
at
the end
of the
piston
rod until h. Reinstall thr? floating piston,
it
touches the bottom
of the hole
in the spring
washer and
cotter
pin.
Spread the
floating piston. Mark the wire,
remove
and
cotter
pin
to
allow clearance for the
measure
the depth of insertion.
Inserting
measuring wire.
Reinstall the shimmy
the wire in the
hole of the floating pis- damper.
ton,
rather than letting it
rest
against
the face of the piston,
will
give
a more
PROPELLER BLADE BEARING LUBRI-
accurate
check. CATION
NOTE
NOTE
To determine if the wire is ´•Although McCauley
propellers
inserted in the
hole of the
requi
re no
lubrication between
floating piston, insert
the wire overhauls, Hartzell propellers
several ti mes, noting
each
require
periodic 1 ubri cati
on as
insertion
depth. When the wire follows:
is
correctly inserted, the length
will
be
approximately 1/4 inch
a.
Remove the propeller spinner.
greater.
b. Remove the safety
wire
and
covers
When
the
shimmy
damper is full, the from the grease zerks.
insertion depth is
2-3/16
inches. The
empty
reading is
3-1/16 inches. To add
c.
Remove
one
zerk from each blade.
MIL-H-5606 hydraulic
fluid (13, Chart 202,
12-20-00),
remove
the shimmy damper
and
d. Lubricate by
placing the
grease
proceed
as
follows:
gun
fitting
on one
zerk of each blade and
filling until the
grease
is
visible from
a.
Remove the
cotter
pin, washer,and the
zerk opening
on
the
opposite
side of
spring
from the piston
rod. the blade.
b. Remove
the internal
snap
ring,
e.
Clean the
excess grease
from the
scraper
ring
and the end seal from the aft
propeller,
install
the grease
zerks,
cov-
end of the barrel
(opposite clevis
end.)
ers
and safety wire
on
each blade.
f.
Reinstall the
spinner
12-20-00
Page 203
A22
May
22/87