Cessna 177 SERIES Service Manual

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1.
TERU
17701370
SERIALS
17701371
Bv B
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THRU
17702313
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5
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Detail
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Detail B
BEGINNING
WITH
17702314
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B
THRU SERIAL 17702123 BEGINNING WITH
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~~~SERIAL 17702124
1. Hourmeter
£.
Transducer
2. Bracket
(Oil
Pressure)
3. Oil Pressure Line 7. Ground Wire
4.
Adapter
8. Wire from
5. Pressure
Switch
Pressure Switch
Figure
15-7.
Hourmeter
Installation
15-56.
HOURMETER.
15-58.
MAGNETIC
COMPASS.
15-57.
DESCRIPTION.
The hourmeter
is
electri-
15-59.
DESCRIPTION.
The
magnetic
compass
is
cally
operated
and is
actuated
by
a pressure
switch
liquid-filled,
with
expansion
provisions
to
compen-
in the
oil pressure
system.
Electrical
power
is sup-
sate
for temperature
changes.
It is
equipped
with
plied
through
a one-amp
fuse
from
the
electrical
compensating
magnets
adjustable
from
front
of
case.
clock
circuit
and
therefore,
will
operate
independent
The
compass
is internally
lighted,
controlled
by
the
of
the master
switch.
If
no clock
is
installed,
a
line
panel
lights
rheostat.
No maintenance
is
required
direct
from
the
battery
contactor
provides
power
on
compass
except
an
occasional
check
on a
compass
independent
of the
master
switch
through
a one-amp
rose
for adjustment
of compensation
and replacement
fuse
located
adjacent
to the
battery
box.
An
indicator
of lamp.
on
the
dial
face
rotates
when
the
meter
is
actuated,
the
meter
or its
wiring
is faulty
and
must
be
replaced.
15-59A.
OUTSIDE
AIR
TEMPERATURE
GAGE.
~~~~~NOTE
~(See
figure
15-6).
NOTE
Hourmeters
installed
in some
later aircraft
15-60.
ELECTRIC
CLOCK.
and
later
spares
incorporate
a diode.
These
are
identified
only
by a white
+ above
the
15-61.
DESCRIPTION.
The electric
clock
is con-
positive
terminal.
When
installing
this
type
nected to
the battery
through
a one-ampere
fuse
hourmeter,
the positive
wire
(red
on factory
mounted
adjacent
to
the battery
box.
The
clock
equipped
aircraft)
must be
connected
to the
electrical
circuit
is separate
from
the aircraft
elec-
white
+ terminal.
Connecting
wires
incor-
trical system
and
will
operate
when master
switch
is
rectly
will
damage
the
meter.
OFF.
Change
7
15-23

Cessna 177 SERIES Specifications

General

Manufacturer	Cessna
Engine Type	Piston
Wingspan	35 ft 6 in (10.82 m)
Seating Capacity	4
Number Built	4, 295
Engine	Lycoming O-360
Horsepower	180 hp
Maximum Takeoff Weight	2, 500 lb (1, 134 kg)