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pressure to greater than 1,000 psig, a circuit
opens to extinguish the message and the
MASTER CAUTION lights.
NOTE
On the ground, MASTER CAUTION
lights will not reset as long as the
HYD PRESS LO message remains
valid. This is to caution against taxiing
in this condition and to advise that
normal brakes may not be available.
HYD PUMP ON MESSAGE
The amber HYD PUMP ON message indicates
that the hydraulic pump has been operating
continuously for over 60 seconds. Refer
to the checklist.
HYDRAULIC RESERVOIR
SIGHT GAUGE
The hydraulic reservoir sight gauge indicates
current hydraulic fluid quantity. The gauge is
integral to the hydraulic reservoir, and is visible
through the aft wall of the nose baggage
compartment (see Figure 13-3).
HYDRAULIC ACCUMULATOR
PRESSURE GAUGE
A pressure gauge on the accumulator (Figure 13-
4) indicates current pressure in the accumulator.
The gauge is on the aft wall of the nose baggage
compartment, and indicates 0–2,000 psig.
MANUAL ACCUMULATOR
BLEED VALVE
The manually actuated accumulator bleed
valve is in the left forward baggage compartment
next to the accumulator pressure
gauge. It is accessed through a hinged access
panel (Figure 13-5). On the ground, it enables
the crew to release pressurized fluid from the
accumulator to the reservoir. This is done
during preflight inspection if the hydraulic
system was previously energized to ensure
accurate reservoir fluid level and accumulator
precharge readings.
OPERATION
PREFLIGHT
Bleed the accumulator prior to checking the
accumulator precharge and fluid level in the
reservoir. Verify that the accumulator is
precharged per the placard and that the hydraulic
fluid level is adequate (no air visible
in lower sight gauge).
IN FLIGHT
Hydraulic System
The hydraulic system operates automatically
to maintain pressure and sends cautionary CAS
messages to the crew if there is a fault.
Hydraulic Subsystems
Hydraulically powered subsystems include
landing gear and brakes. Application of hydraulic
power to the two subsystems is presented
in Chapter 14, “Landing Gear and
Brakes.”
EMERGENCY/
ABNORMAL
For specific information on emergency/abnormal
procedures, refer to the appropriate abbreviated
checklists or the FAA-approved
Airplane Flight Manual (AFM).
CITATION MUSTANG OPERATING MANUAL
13-6 510OM-00
Figure 13-5. Manual Accumulator
Bleed Valve
Figure 13-4. Hydraulic Accumulator
Pressure Gauge
510OM-00 14-i
CHAPTER 14
LANDING GEAR AND BRAKES
CONTENTS
Page
INTRODUCTION................................................................................................................. 14-1
GENERAL ............................................................................................................................ 14-1
LANDING GEAR................................................................................................................. 14-2
Description.................................................................................................................... 14-2
Components................................................................................................................... 14-6
Controls and Indications................................................................................................ 14-9
Operation ..................................................................................................................... 14-11
Emergency/Abnormal.................................................................................................. 14-13
NOSEWHEEL STEERING................................................................................................ 14-13
Description and Operation .......................................................................................... 14-13
BRAKES............................................................................................................................ 14-14
Description .................................................................................................................. 14-14
Components................................................................................................................. 14-16
Controls and Indications ............................................................................................. 14-18
Operation ..................................................................................................................... 14-19
Emergency/Abnormal.................................................................................................. 14-21
　
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