Ricon Mirage F9T, Service Manual

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E. HYDRAULIC POWER SYSTEM
Refer to Figure 4-22. The major components of hydraulic system are an electric motor, a gear pump, a hy-
draulic cylinder, control valves, and a manual back-up pump.
1. SYSTEM FLUID RENEWAL
a. Deploy platform using control pendant ( /OUT).
b. Slowly open manual release valve (located on back-up pump) to release hydraulic pressure, and
lower platform to ground.
c. Loosen clamp fastening fluid reservoir to pump.
d. Carefully pull reservoir from bottom of pump and empty into a proper waste fluid container.
e. Re-install reservoir on pump and tighten clamp.
f. Remove fill plug on the top of reservoir. Fill reservoir with Texaco 01554 Aircraft Hydraulic Oil or
equivalent U.S. mil spec H5606G fluid.
g. Close manual release valve.
h. Raise platform to floor level, and then lower to ground level. Repeat cycle three times.
i. Slowly open manual release valve to release hydraulic pressure.
j. Repeat steps c. through h. and then proceed to step k .
k. Close manual release valve.
l. Refer to HYDRAULIC BLEEDING section in Chapter II and bleed system.
CYLINDER
(removed)
ELECTRIC
MOTOR
BACK-UP
PUMP
GEAR
PUMP
FIGURE 4-22: HYDRAULIC SYSTEM COMPONENTS