Cessna 177 SERIES Service Manual

NOTE
Air bulb with check valves may be obtained
locally from
a surgical supply
company. This
is the type used
in measuring blood pressure.
THICK-WALLED
PRESSURE
SURGICAL HOSE--,
PRESSURE BLEED-OFF
SCREW (CLOSED)- <
AIR BULB
WITH
CHECK----
VALVES
CLAMP
CLAMP
THICK-WALLED
SURGICAL
HOSE
\CHECK VALVE
SUCTION
- CHECK VALVE
TO APPLY SUCTION:
1. Squeeze air bulb
to expel as much air as
possible.
2. Hold suction hose firmly against static pressure source opening.
3. Slowly release air bulb to
obtain desired suction, then pinch hose shut
tightly to trap suction in
system.
4. After leak test, release suction
slowly by intermittently allowing a
small amount of air to enter
static system. To do
this, tilt end of suction hose away from
opening, then immediately tilt it
back against opening. Wait
until vertical speed indicator approaches
zero, then repeat. Con-
tinue to admit this small amount of air
intermittently until all suction is released,
then remove
test equipment.
TO APPLY PRESSURE:
jCAUTION
Do not apply
positive pressure with airspeed
indicator or vertical speed
indicator connected into static system.
1. Hold pressure hose firmly against static pressure source opening.
2. Slowly squeeze
air bulb to apply desired pressure
to static system. Desired pressure may
be
maintained by repeatedly
squeezing bulb to replace any
air escaping through leaks.
3. Release pressure by slowly opening
pressure bleed-off screw, then remove
test equipment.
Figure 15-3. Static System Test Equipment
15-8

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)