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warming, test the standby instrument battery by selecting BATT TEST, verify a successful test as
indicated by the green test lamp, then power up the standby instruments by moving the switch to
STBY INST. Standby instruments will power on and should be verified to be operating correctly. If
engine starts were made with PFDs in reversionary mode, MFD power-up must be successful and
PFDs must be in normal operating mode for dispatch. Dispatch is not permitted with PFDs operating
in reversionary mode.
NOTE
Dispatch is prohibited until all required avionics systems are verified to be functioning
properly.
All flight controls, manual & electric trims, flaps, and speed brakes should be cycled through full
travel several times to verify that all controls reach full travel and operate normally. Autopilot should
be engaged and disengaged to verify operation especially if RVSM flight is planned.
HYDRAULIC SYSTEM
The closed center hydraulic system supplies pressure from an electrically powered pump and
accumulator to operate the landing gear and brakes.
Selecting landing gear extend or retract energizes the respective solenoid on the control manifold to
actuate the gear control valve which in turn allows up to 1500 psi system pressure to reach the gear
actuators. Two pressure switches in the manifold control pump operation to make sure that the
accumulator maintains appropriate system pressure. An additional switch in the manifold activates
an amber HYD PRESS LO CAS message when hydraulic pressure is commanded, but system
pressure is too low. An amber HYD PUMP ON CAS message illuminates when power has been
applied to the pump for more than 60 seconds.
3-158 AA 510FM-07
MODEL 510 SECTION III - OPERATING PROCEDURES
NORMAL PROCEDURES
FAA APPROVED
Configuration U.S.
COLD WEATHER OPERATIONS (Continued)
Apply preheat to engines, tailcone, nose compartment, cabin, and cockpit. Engine preheating is best
accomplished by installing the engine covers and directing hot air through the oil filler access door. A
warm battery provides significant benefit and the heater hose can be placed in the tailcone with the
door propped as far closed as possible to minimize heat loss. Similarly, warm air can be used to heat
the nose compartment hydraulics and pneumatics.
ENGINE START PREPARATION
Select aircraft Battery switch to BATT. The Cockpit Lighting DISPLAYS rotary knob should be
adjusted clockwise to the full bright position. Garmin PFD and MFD LCD displays will initially appear
very pale with colors deepening and become more legible as displays begin to warm. Warming may
take as long as 10 minutes depending on cold soak temperature and duration. The MFD is warmed
and operational when individual display elements such as letters or cursors change without blurring
or streaking. Engines may be started when engine instrument numerical values are legible on the
MFD or the PFDs in reversionary mode. Preheating the cabin will reduce this delay.
The battery supplying the standby instruments is heated by an internal heater that is not powered
until after engine start. If the battery does not successfully pass the preflight test (GREEN light),
repeat that portion of the test once the engines have been running for 10 minutes. See AFTER
ENGINE START. The AMBER light check should successfully complete even with a cold battery but
should also have been observed during shutdown prior to the coldsoak.
Consider using a ground power unit after extended cold soak. Do not attempt a battery start if the
battery voltage is less than the minimum required. If a start is attempted using a ground power unit
and/or preheated battery and the starter will not motor to 8.0 percent N2 minimum, terminate the
starting sequence. Battery voltage below 14 volts after the start button is pressed indicates a
potential for an unsuccessful start.
Fuel tank temperature limits for the type of fuel being used must be observed. Refer to Operating
Limitations, FUEL LIMITATIONS.
Engine starts using ground power or battery should be normal except that some smoke and/or flame
may be present from the tail pipe on initial start and engine oil pressure will be high. Engine oil
pressure over 170 psi is normal during cold starts and is permitted between 170 and 250 psi for 500
seconds (8 minutes, 20 seconds). Oil pressure digits and pointer will be displayed in green for the
first 440 seconds (7 minutes, 20 seconds). If oil pressure is over 170 psi for longer than 440 seconds,
the green will turn amber for 60 seconds and then turn red at 500 seconds (8 minutes, 20 seconds).
NOTE
Engine oil pressure should decrease as oil temperature warms.
(Continued Next Page)
510FM-07 AK 3-157.1
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Citation Mustang airplane flight manual 1(108)
