Cessna 177 SERIES Service Manual

16-102.
TROUBLE
SHOOTING
(Cont.)
TROUBLE
PROBABLE
CAUSE
REMEDY
*POWER
LOW
Low battery
voltage.
1. Set toggle switch
to off.
2. Disconnect the battery-pack from the
transmitter
and connect
a Simpson 260
model voltmeter
and measure
voltage.
If the battery pack transmitters is 7.5
volts or less, the battery pack is below
specification.
Faulty
transmitter.
3. If
the battery-pack
voltage meets
the
specifications
in step 2, the battery-pack
is O.K. If the battery
is O.K., check
the
transmitter as follows:
a. Reconnect battery pack to the trans-
mitter.
b. By
means of E. F.
Johnson 105-0303-
001 jackplugs
and 3 inch
maximum long
leads, connect a Simpson Model 1223
ammeter to the jack.
c. Set the toggle switch to AUTO and
observe the ammeter current drain. If
the current-drain
is
in the 15-25 ma
range, the transmitter or the co-axial
cable is faulty.
Faulty co-axial
4. Check co-axial antenna
cable for high
antenna cable. resistance joints. If this is found to be
the case, the cable should be replaced.
*This test should be carried
out with the co-axial cable provided
with your unit.
16-40 Change 7

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)