Cessna 177 SERIES Service Manual

a. Remove filter by releasing the quick-release 2-24. BATTERY servicing involves adding distilled
fasteners. water to maintain the electrolyte even with the hori-
b. Clean filter by blowing with compressed
air zontal baffle plate or split ring
at the bottom of the
(not over 100 psi) from direction opposite of normal filler holes, checking cable connections, and neu-
air flow. Arrows on filter
case indicate direction tralizing
and cleaning off any spilled electrolyte or
of normal air flow. corrosion. Use bicarbonate of soda (baking soda)
and clean water to neutralize electrolyte or corro-
NOTE
sion. Follow with a thorough
flushing with clean
water. Do not allow bicarbonate of soda to enter
Use
care to prevent damage to filter element
battery. Brighten cable and terminal
connections
when cleaning
filter with compressed air. with
a wire brush, then coat with petroleum
jelly
before connecting. Check the battery every 50 hours
c. After cleaning as outlined in step "b" filter may (or at least every 30 days), oftener in hot weather.
be washed, if necessary,
in a solution of warm water Add only distilled
water, not acid or "rejuvenators",
and a mild household detergent. A cold water solu- to maintain electrolyte level in the battery. Inspect
tion may be used. the battery box and area adjacent to battery box.
Clean and
remove any
corrosion.
CAUTION
2-25. TIRES should be maintained at the air pres-
Do not use solvent or cleaning
fluids to wash sure specified in figure
1-1. When checking tire
filter. Use only a water
and household deter- pressure, examine
tire for wear, cuts, bruises, and
gent solution when washing the
filter, slippage. Remove
oil and grease from tires with
soap and water.
NOTE
NOTE
The filter assembly may be cleaned with
compressed air a maximum of 30 times
Recommended tire pressure
should be main-
or it may be
washed a maximum
of 20
tained. Especially
in cold weather, remem-
times. A new
filter should be installed
ber that any drop in temperature of the
air
after 500 hours of engine
operating time
inside
a tire causes a corresponding
drop in
or
one year, whichever should occur
first, pressure.
However, at any time a filter is damaged,
a
new filter
shall be installed.
A dam-
2-26.
NOSE
GEAR SHOCK
STRUT.
The nose
gear
aged filter may have sharp or broken
shock strut requires periodic
checking to ensure that
edges in the filtering panels which would the strut is filled with hydraulic fluid and is inflated
allow unfiltered air to enter the induction to the correct air pressure. To service shock
system. Any filter that appears doubtful strut, proceed as follows:
should have a new filter installed, a. Remove valve core from air filler valve at
lower end
of strut and allow
strut to fully compress
d. After washing, rinse filter with
clear water un- (fork and outer
barrel in contact).
til
rinse water draining from
filter is clear. Allow
b. With strut
compressed, remove
fluid filler plug
water to drain
from filter and dry with compressed
at top of strut.
air (not
over 100 psi).
c. Extend strut one inch, and fill to
overflow with
hydraulic
fluid. Replace fluid
filler plug while strut
NOTE
is extended.
d. Compress strut.
The filtering panels
of the filter may become
e. If strut
compresses fully, repeat
steps "b" thru
distorted
when wet, but they
will return to
'd" until strut
will not compress fully.
This is done
their original
shape when dry.
to ascertain that the
floating piston is fully
bottomed
and that
the strut is
full of fluid.
e. Be sure induction air box and air inlet ducts to f. After strut can not be fully compressed. re-
the engine are clean, inspect and replace
filter if it move fluid filler plug and
compress strut fully
is damaged.
allowing fluid to overflow
from filler.
f. Install filter.
Be sure gasket on aft face of fil- g.
With strut fully compressed, install and tighten
ter is in good condition.
fluid filler plug.
h. Install valve core
in air filler valve,
and inflate
2-23. VACUUM SYSTEM FILTER. The vacuum
sys- strut with nose wheel off ground
to the air pressure
tem central air filter keeps
dust and dirt from enter-
specified in figure 1-1.
ing the vacuum operated instruments. Change
central i. Clean spilled fluid from
strut and surrounding
air filter element
every 500 hours of operating
time area.
and whenever suction gage reading drops below 4.6
inches of mercury.
Also, do not operate the vacuum
NOTE
system with the
filter removed, or
a vacuum line
disconnected as particles of dust
or other foreign The nose landing
gear shock strut will nor-
matter may enter the system
and damage the gyros.
mally require
only minimum amount of
service. Maintain the strut extension pres-
sure, as shown in figure 1-1. Lubricate
2-8

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)