BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 364

When pushed, the ENG FIRE PUSH switch-
lights will activate a motor-driven firewall
shutoff valve that isolates fluid from the en-
gine-driven pump.
The indicator lights are shown in color in the
three hydraulic system schematics (Figure 13-
2, 13-4, and 13-6) and in the "Annunciator
Panel" section of this manual.
HYDRAULIC SYSTEM
NO. 1
As the left engine starts, fluid is drawn from
the reservoir through the open firewall shut-
off valve (Figure 13-2). As the engine-driven
pump increases pressure to 2,300 psi, the
amber L. ENG PUMP caution light goes out.
Pressure will stabilize at 3,000 psi, as shown
on the NO. 1 PRESS indicator.
In the event pump malfunction causes exces-
sive pressure, a relief valve opens at 3,500 psi.
OVERFLOW
BOTTLE
ENGINE DRIVEN
LEGEND
ENGINE DRIVEN
PUMP PRESSURE
ELECTRICAL
PUMP PRESSURE
SUCTION
RETURN
NITROGEN
HI
TEMP
PRESSURE RELIEF/
BLEED VALVE
HEAT EXCHANGER/
FAN
LH ENG
CASE
FIRE
DRAIN
PUSH
FILTER
FIREWALL
SHUTOFF VALVE
(MOTOR DRIVEN)
LEFT
PUMP
P
L ENG
PUMP
PRESSURE
SWITCH
FILTER
NO. 1
Figure 13-2. No. 1 Hydraulic System Schematic
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
CL-600-2B16 PILOT TRAINING MANUAL
Pressurized fluid is filtered by a nonbypass-
type filter incorporating an indicator that ex-
tends if the element is becoming blocked.
Return fluid is filtered by a bypass-type filter,
also featuring an indicator. There is no cock-
pit indication that bypassing has occurred.
If system pressure drops to 1,800 psi, the
amber L. ENG PUMP caution light comes on
to warn of low pressure.
If system fluid overheats, the amber HI TEMP
light illuminates. This occurs at 205˚F fluid
temperature.
The electric hydraulic 1B pump can be oper-
ated by placing the NO. 1 ELECT PUMP
switch to ON, providing a supplementary pres-
sure source for the system. Power is supplied
by AC bus 2. System components, located on
the left side of the aft equipment bay, are
shown in Figure 13-3.
RESERVOIR
CASE
DRAIN
FILTER
AC
PUMP
1B
P
ELECT
PUMP
PRESSURE
SWITCH
PRESSURE
RELIEF VALVE
TO SYSTEMS
AC BUS 2
ELECTRIC RETURN
OFF
PUMP FILTER
ON
SWITCH
ACCUMULATOR
CL 601-3A/R 13-3
L t é e
L t d.