Section
VIII
Handling, Serv -
Maint
OIL SYSTEM
BEECHCRAFT Baron
58
SerialTH
773
and
After
The engines are equipped
with
a
wet
sump, pressure type
oil system. Each engine sump has
a capacity of 12 quarts.
The oil system may be checked
through
access doors in
the
engine cowling. A calibrated dipstick attached to the
filler
cap indicates the oil level. Due to the canted position of the
engines, the dipsticks are calibrated for
either
right
or
left
engines and are not interchangeable.
The oil and oil filter should be changed every
100 hours
under normal operating conditions. The oil drain is accessible
through the cowl flap opening. The engines should be
warmed to operating temperature to assure complete drain-
ing of the oil.
1. Remove the cowling plug button
below
the aft inboard
corner of the oil sump.
2. Open the oil drain valve
3. Remove the oil filter and replace
with
a
new
unit. A
torque of
18 to 20 foot-pounds should be applied to the
nut of the oil filter.
4. Close oil drain valve and fill
with
oil.
Moisture
that may have condensed and settled in the oil
sump should be drained occasionally by opening the oil
drain plug and allowing a small
amount
of oil to escape. This
;s particularly important in
winter,
when
the
moisture
will
collect rapidly and may freeze.
The engine manufacturer specifies ashless dispersant oils
only. However, for the first 20 hours, MIL-C-6529 Type II
Multiviscosity
2QW-50
Corrosion-Preventive Oil is used. It is
recommended that this oil be removed and the oil filter
changed at 20 hours of engine operation (not to exceed 25
hours). If oil consumption has not stabilized at this point,
MIL-L-6082Mineral Oil maybe used. After the break-in period,
when oil consumption has stabilized, MIL-L-22851 Ashless
8-16 August, 1984
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