BEEC~~CRI.FT
Baron
58
Serial TH
773
and
After
Section
VIII
Handling,
Serv
~
Maint
OXYGEN
CYLINDER
RETESTING
Oxygen cylinders used in the airplane are
of
two
types.
Light
weight cylinders, stamped
"3HT"
on the plate on the
side, must be hydrostatically tested every three years and
the test date stamped on the cylinder. This
bottle
has a
service
life
of
4,380
pressurizations or
twenty-four
years,
whichever occurs first, and then must be discarded. Regular
weight cylinders, stamped
"3A",
or
"3AA",
must be hydro-
statically tested every five years and stamped
with
the
retest date. Service
life
on these cylinders is
not
limited.
MINOR MAINTENANCE
RUBBER
SEALS
To prevent sticking of
the
rubber
seals
around
the
windows,
doors, and engine
cowling,
the
seals
should
be coated
with
Oakite 6 compound. The
compound
is
noninjurious
to
paint
and can be removed by
employing
normal
cleaning
methods.
HEATING AND VENTILATING SYSTEM
The heaterfuel
pump
filter
in
the
nose
wheel
well
should be
removed and cleaned
after
each
100
hours
of airplane
operation. Remove the
filter
by
turning
the base of the
pump
counterclockwise.
Wash
the
filter
in fresh cleaning solvent I
(see Consumable Materials) and dry
with
compressed air.
The iris valve at the
heater
blower
inlet
should
be
lubri-
cated occasionally
with
molybdenum
disulfide
(see Con-
sumable Materials). The valve
should
never
be
lubricated
with
oil or any liquid
lubricant
which
would
collect
dust.
Do not reset the overheat
circuit
breaker
until
a
thorough
in-
spection of the system has
determined
the
cause and
the
malfunction
has been corrected.
Revised:
March
1983
8-23
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