Quantcast Emergency Power Lever - P-330_wch50170

 

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CHAPTER EIGHT
T-34C CONTACT CHG 2
808.
EMERGENCY POWER LEVER
1.
Description. N/A
2.
General. The manual fuel control system consists of a cockpit control, which provides
the pilot with direct mechanical linkage to the bellows and the fuel metering pin in the FCU.
The manual fuel system is a backup system only and is used in the event of a malfunction in
the pneumatic section of the FCU. When engaged, the system will bypass all pneumatic
failure modes that result in minimum fuel flow and/or lack of engine response to PCL
movement.  Movement of the EPL towards max mechanically depresses the bellows to
schedule more fuel to the engine. This system relies on torque tube pretension to reduce power
as the EPL is moved towards the idle range. When using the EPL, normal operation of the
landing gear warning system is provided. If loss of power occurs due to a malfunction of the
FCU, power may be restored using the EPL. No automatic fuel scheduling is incorporated, and
fuel metered to the engine is a direct function of the lever position. Idle RPM, when required,
should be maintained above 65% by the pilot to eliminate the lack of EPL response in the idle
range, and improve engine response. The manual fuel control system bypasses the protective
devices, relying on pneumatic bleed air as the operational parameter for the fuel topping
function of the primary governor. Failure of the FCU at high power cannot be corrected with
the EPL.
NOTE
With gear up, normal operation of the gear warning system occurs
when the PCL and the EPL are retarded below 75% N1.
Additionally, the warning system will activate (with gear up) when
both the PCL and EPL are forward of the 75% switch.
3.
Procedures
a.
EPL Activation
i.
Condition lever - full increase.
ii.
EPL - Out of detent; slowly advance to desired power setting.
iii.
PCL - Idle.
b.
EPL Normal Use.  Utilize smoothly in the same manner as the PCL with
considerations/limitations as set forth under GENERAL above. The use of the EPL
will only be practiced at altitude. It will NOT be used for training purposes in
either the normal or emergency landing patterns.
CAUTION
1. Compressor stall, vibrations and overtemp are probable with
rapid accelerations of the EPL, particularly at the low end of the
power spectrum.
8-20 EMERGENCY PROCEDURES


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