TM 55-4920-428-13
If the HIGH PRESS SHUTOFF VALVE is opened too fast, excessive
fluid under pressure can flow from the check valve. Personnel injury
can result.
v. (See fig. 2-7. ) Press and hold the ILCA manifold check valve P2 plunger. At the same time, crack
the HIGH PRESS SHUTOFF VALVE to control the flow of bleed fluid from the check valve. Wipe up
excess fluid with a cloth. Continue bleeding until flow is air free.
w. (See fig. 2-3.) CLOSE the HIGH PRESS SHUTOFF VALVE.
x. Set the ILCA PRESS SYS 2 selector valve to OFF.
y. Set the SAS PRESS SYS 2 selector valve to PRESS.
If the HIGH PRESS SHUTOFF VALVE is opened too fast, excessive
fluid under pressure can flow from the check valve. Personnel injury
can result.
z. Press and hold ILCA manifold check valve S2 plunger. At the same time, crack the HIGH PRESS
SHUTOFF VALVE to control the flow of bleed fluid from the check valve. Wipe up excess fluid with a
cloth. Continue bleeding until flow is air free.
aa.
ab.
ac.
ad.
ae.
CLOSE the HIGH PRESS SHUTOFF VALVE.
Set the SAS PRESS SYS 2 selector valve to OFF.
Rotate the HIGH PRESS REGULATOR ccw to full DECREASE.
PUSH (open) the LOW PRESS RELIEF VALVE. Hold open for 1 minute.
Free the end of the CASE VENT hose and remove the plug. Place the end of hose in a container,
with the end submerged in clean hydraulic fluid.
af. Rotate the CASE VENT LINE PRESS valve toward OPEN to bleed air from the CASE VENT
system. Continue to bleed for 10 seconds after flow is air free.
ag. CLOSE the CASE VENT LINE PRESS valve.
ah. Install the plug in the CASE VENT hose. Secure the CASE VENT hose.
ai. Set the RETURN SYS 2 selector valve to PRESS.
aj. (See fig. 2-7. ) Press and hold the ILCA manifold check valve R2 plunger. At the same time, crack
the RETURN BACK PRESS valve toward OPEN to control bleed flow from the check valve. Wipe up
excess fluid with a cloth. Continue bleeding until flow is air free.
ak. (See fig. 2-3. ) CLOSE the RETURN BACK PRESS valve. Set RETURN SYS 2 selector valve to
OFF.
al. Set the RETURN SYS 1 selector valve to PRESS.
am. (See fig. 2-7. ) Press and hold ILCA manifold check valve R1 plunger. At the same time, crack
the RETURN BACK PRESS valve toward OPEN to control fluid flow from the check valve. Wipe up
excess fluid with a cloth. Continue bleeding until flow is air free.
an. (See fig. 2-3. ) CLOSE the RETURN BACK PRESS valve. Set RETURN SYS 1 selector valve to
OFF.
ao. Perform a high pressure self-test (para 2-9) before mounting a component for test. If a
component is not to be mounted, perform a normal shutdown (para 2-10).
2-1
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