Hawker 800 XP, Pilot Training Manual

Page: 256 / 504

AUTOMATIC THROTTLE
RETARD
The throttle retard installation uses hydraulic
pressure from the reverser system to force the
engine fuel control mechanism toward idle
when a stow signal is generated.
Should an inadvertent stow of the reverser
occur while the reverser piggyback lever is in
a reverser thrust range, the throttle retard
mechanism automatically retards the reverser
lever toward the reverse idle deploy position.
ELECTRICAL POWER
Electrical power to operate and control the
thrust reverser is taken from the PE busbar.
NORMAL CONDITION
MANAGEMENT
General
Deployment of the thrust reversers on unpaved
surfaces is restricted to reverse idle thrust.
Reverser Door Pins
The reverser doors may be pinned in the open
or closed positions. It is not permissible to pin
only one door. The airplane may be operated
with the doors secured in the closed position.
External Check
Before performing the external check, ensure
that the OFF annunciators on the thrust re-
verser panel are illuminated. At each engine
aft nacelle cowl, check that all access panels
are securely fastened and that the thrust re-
verser clamshell doors are fully stowed. Ensure
that safety pins are removed from the reverser
doors. From the rear of the engine, check that
fan flaps are retracted.
Reverser doors can be deployed with-
out the engines operating. If the re-
verser doors are deployed, they must
be stowed before engine start. One
crewmember must observe outside
while another operates the system.
Before Starting Engines
Press the FLT ANNUN TEST button, and en-
sure that the thrust reverser control panel an-
n u n c i a t o r s i l l u m i n a t e . E n s u r e t h a t t h e
THRUST REVERSER POWER switch OFF
annunciators are illuminated.
After Starting Engines
With the engines at idle, press the THRUST
REVERSER POWER switch. Ensure that the
ARM annunciators are illuminated and that the
OFF annunciator is extinguished.
On each engine in turn, check reverse thrust
operation as follows:
1. Ensure that the engine throttle levers
are at idle. Ensure ARM annunciators
are illuminated.
2. Advance right throttle lever until rud-
der bias is felt. Ensure that R/H ARM
annunciator is extinguished.
3. Move the left thrust reverser lever to the
deploy position, and check that the rud-
der bias pressure is removed from the
pedals. Ensure that the L/H UNLCK
and REVRS annunciators illuminate,
and that the MWS REVERSER an-
nunciator does not illuminate.
4. The left thrust reverser must be stowed
and all appropriate indications valid
before proceeding to test the right
thrust reverser.
CAUTION
7-32
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP PILOT TRAINING MANUAL
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