Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (29)
Page 29 of 50
CHAPTER 29 – HYDRAULIC SYSTEM (29-00-00)
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COPYRIGHT

2007 BY DART AEROSPACE LTD.

THIS DOCUMENT IS PRIVATE AND CONFIDENTIAL AND IS SUPPLIED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED FOR ANY PURPOSE OR COPIED OR COMMUNICATED TO ANY
OTHER PERSON WITHOUT WRITTEN PERMISSION FROM DART AEROSPACE LTD.
Revision:
6
Date: 13.08.26
29.3.3.7.5 Install filter element (12) into filter bowl
(11).
29.3.3.7.6 Fill filter bowl (11) half full with clean
hydraulic fluid (C-002) or hydraulic fluid (C-072).
29.3.3.7.7 Lubricate threads of filter bowl (11)
with clean hydraulic fluid (C-002) or hydraulic fluid
(C-072).
29.3.3.7.8 Install filter bowl (11) in valve body (8).
29.3.3.7.9 Make sure the ratchet lever (10) is
well engaged in the ratchet teeth of filter bowl.
(11).
29.3.3.7.10 Install the forward pylon fairing
(Chapter 52).
29.3.3.7.11 During initial run-up, check for leaks.
29.3.4 Hydraulic System Accumulators
Hydraulic systems 1 and 2 each contain one
accumulator connected in pressure line of upper
or lower cylinders, depending on system. Each
unit consists of a spring-loaded piston enclosed in
a cylindrical body. The maintain pressure on fluid
for irreversible operation and to make up any
leakage past seals. The units are horizontally
mounted to aft side of lift beam. System 1
accumulator is located above system 2
accumulator.
29.3.4.1 Hydraulic System Accumulators -
Removal
MATERIALS REQUIRED
NUMBER NOMENCLATURE
C-428 Caps and/or Plugs
29.3.4.1.1 Place suitable container to catch a
small amount of fluid.
29.3.4.1.2 To release pressure with minimum
spraying of fluid, slowly open pressure line
connections from tee fitting at lower end of
accumulator.
29.3.4.1.3 Cover open lines with caps and/or
plugs (C-428).
29.3.4.1.4 Remove screw from clamp at lower
end, and two bolts from upper end to detach
accumulator from support brackets. Remove
clamp.
29.3.4.2 Hydraulic System Accumulators -
Installation
29.3.4.2.1 Place clamp on accumulator. Install
fittings using new packings.
29.3.4.2.2 Position accumulator to support
brackets. Install tow bolts at upper end and
clamp attaching screw at lower end.
29.3.4.2.3 Connect tubes to tee fitting.
29.3.5 Hydraulic Pump (System 1)
System 1 hydraulic pump is installed on
transmission sump case (Chapter 63). The
pump is an axial type rated at 6.0 gal. per
minute at 1000 ±25 PSI (6890 ±172 kPa) at
operating speed.
29.3.5.1 Removal
29.3.5.1.1 Remove forward pylon fairing and
access panel on right side of pylon support
structure inside cabin area.
29.3.5.1.2 Loosen connection of hoses on
pump to break torque but not to point of leaking.
29.3.5.1.3 Disconnect
hoses at ends opposite
hydraulic pump.
29.3.5.1.4 Remove nuts and washers from four
studs at pump flange. Pull pump and gasket
outward off studs. Place pump, with hoses
attached, in container large enough to hold fluid
contents of reservoir and hoses.