Cessna 177RG0073, Owner'S Manual

Page: 78 / 85

EMERGENCY PROCEDURES
If a malfunction should occur, the system is easily
overpowered with pressure on the control wheel. The system
should then be turned off. In the event of partial or complete
vacuum failure, the wing leveler will automatically become
inoperative. However, the Turn Coordinator used with the wing
leveler system will not be affected by loss of vacuum since it is
designed with a "back-up" system enabling it to operate from either
vacuum or electrical power in the event of failure of one of these
sources.
OPERATING NOTES
(1) The wing leveler system may be overpowered at any time
without damage or wear. However, for extended periods
of maneuvering it may be desirable to turn the system off.
(2) It is recommended that the system not be engaged during
take-off and landing. Although the system can be easily
overpowered, servo forces could significantly alter the
manual "feel" of the aileron control, especially should a
malfunction occur.
CESSNA ECONOMY MIXTURE INDICATOR
The Cessna Economy Mixture Indicator is an exhaust gas
temperature (EGT) sensing device which visually aids the pilot in
obtaining either an efficient maximum power mixture or a desired
cruise mixture. Exhaust gas temperature varies with cylinder
fuel-to-air ratio, power, and RPM.
OPERATING INSTRUCTIONS.
The following chart should be used to establish mixture
settings in take-off, climb and cruise.
The climb reference EGT must be known before the EGT
indicator can be used for take-off and climb. Determine the
reference EGT periodically as follows:
7-6