Raytheon Beech Baron E55 - Page 616

RBYtheon
Aircraft
Company
BARON
55
AND
58
SHOP
MANUAL
I
CAUTION:
Monitor
the
cylinder
head
temperature
indicator
to
prevent
overheating
of the
engine
due
to
inadequateair
cooling.
c.
Bring
the
voltage
regulator
up
to
normal
operating
temperature
by
running
the
engine
for
at
least
20
minutes
at
minimum
cruise
rpm
with
approximately
15
to
20
percent
electrical
load
as
indicated
on
the
respective
loadmeter,
located
in
the
center
section
of the
instrument
panel.
d.
Using
a
portable
precision
voltmeter
(0-50
range,
1%
accuracy),
connect
the
POSITIVE
lead
to
the
common
bus
terminal
and
the
NEGATIVE
lead
to
structural
ground.
CAUTION:
Do
not
use
the
voltmeter
on
the
airplane
instrument
panel,
except
to
determine that the
alternator
is
operating.
I
e.
Check
the
voltage
reading
on
the
voltmeter.
If
the
reading
does
not
indicate
28.25 0.25
vdc,
remove
the
top
plug
(marked
VOLTAGE
ADJUSTMENT) covering
the
slotted
adjustment
screw
inside the
voltage
regulator
and
I
adjust
the
regulator
to
28.25
0.25
vdc.
NOTE:
To
raise the
voltage
setting,
turn
the
slotted
adjusting
screw
clockwise;
to
lower
the
voltage setting,
turn
the
slotted.
adjusting
screw
counterclockwise.
A
positive
stop
in
each
direction limits
the
setting
of
the
adjustment
screw
to
two
notches.
f.
Replace
the
plug
in
the
VOLTAGE
ADJUSTMENT
hole in
the
appropriate
voltage
regulator.
g.
Place
the
VOLT
REG
switch
in
the
No.
2
position.
h.
Bring
the
voltage
regulator
up
to
normal
operating temperature
by
running
the
engine
for
at
least
20
minutes
at
minimum
cruise
rpm
with
approximately
15
to
20
percent
electrical
load
as
indicated
on
the
respective
loadmeter,
located
in
the
center
section
of
the
instrument
panel.
I
i.
Again
check
the
voltage
reading
on
the
voltmeter.
If the
reading
does
not
indicate
28.25 0.25
vdc,
remove
the
top
plug
(marked
VOLTAGE
ADJUSTMENT)
covering
the
slotted
adjustment
screw
inside the
voltage regulator
and
adjust
the
regulator
to
28.25
0.25 vdc.
NOTE:
To raise
the
voltage
setting,
turn
the
slotted
adjusting
screw
clockwise;
to
lower
the
voltage
setting,
turn
the
slotted
adjusting
screw
counterclockwise.
A
positive stop
in each
direction limits
the
setting
of
the
adjustment
screw
to
two
notches.
j.
Replace
the
plug
in
the
VOLTAGE
ADJUSTMENT
hole
in the
appropriate
voltage
regulator.
WARNING:
For
any
adjustment,
the
right
engine
must
be
shut
down
to
provide
safe
access
to
the
voltage
regulators.
k.
Start
the
right
engine
according
to
the ENGINE
START
procedures
in the
applicable
Pilot’s
Operating
Handbook.
Place
the
right
alternator
switch
in the
ON
position
and
allow the alternator
to
properly
warm
up.
I.
Place
the
VOLT
REG
switch in
the
No. I
position
and
perform
the
following
Checks.
Then
place
the
VOLT
REG
switch
in
the
No.
2
position
and
perform
the
same
checks.
1.
With
both
engines
running
at
minimum
cruise
rpm
and
a
15
to
20
percent
load
indicated
on
the
loadmeters,
switch
from
one
alternator
to
the other
several
times,
then
switch
both alternators
on.
Monitor
the
voltage
reading
on
the
voltmeter.
Make
any
final
adjustment
necessary
on
the
appropriate voltage regulator
to
I
maintain
the
voltage
reading
at
28.25
0.25
vdc.
page
18SECTION
13
E21