12
__
R 13
__ R
14
__
R 15
__ R
16
__
17
__
18
__
19
__
F EEFF : ALL E E ECES Disconnect the HJ8 electrical harness from the receptacle connector identified "CHANNEL B" on the HMU. Use soft nose pliers, if necessary.
Connect the FADEC-ENGINE PRESERVATION/FALSE METERING VALVESIGNAL (856A1480G01) to the HMU receptacle identified "CHANNEL B" in order to open the Fuel Metering Valve (FMV) in the HMU and permit the preservation oil to flow to the fuel nozzles.
Pump filtered (10 micron) oil through the PHP port until it flows out of the PCR temporary line. Continue to pump oil through the PHP port until the oil that flows out does not have fuel mixed with it.
Remove TOOL FADEC-ENGINE PRESERVATION/FALSE METERING VALVESIGNAL (856A1480) from the HMU receptacle connector, CHANNEL
B.
Remove the temporary drain line from the PCR port of the HMU.
Tighten coupling nut:
CAUTION : USE 2 WRENCHES TO REMOVE OR INSTALL THE TUBE
_______ COUPLING NUTS. ONE WRENCH TO HOLD THE UNION AND ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT. THIS WILL PREVENT DAMAGE TO THE HARDWARE.
a_ Re-connect the PCR line to the HMU PCR port. TORQUE
coupling nut to between 180 and 200 lbf.in (2.03 and 2.26
m.daN).
Re-connect the HJ8 electrical harness to the HMU receptacle connector identified "CHANNEL B".
Disconnect:
CAUTION : USE 2 WRENCHES TO REMOVE OR INSTALL THE TUBE
_______ COUPLING NUTS. ONE WRENCH TO HOLD THE UNION AND ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT. THIS WILL PREVENT DAMAGE TO THE HARDWARE.
a Disconnect the LPTCC fuel supply hose from the HMU.
_『
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E May 01/05EE F 『 E C F M E E E E 56-5B E E E 20 Install a temporary line to the LPTCC port of the HMU and let
__ it drain in the container. Pump filtered (10 micron) oil through the PHP port until it flows out of the LPTCC temporary line. Continue to pump oil through the PHP port until the oil that flows out does not have fuel mixed with it.
21 Disconnect the cart from the PHP port.
__
22 Re-install the PHP port plug on the fuel pump. TORQUE plug to
__ between 45 and 55 lbf.in (0.50 and 0.62 m.daN).
23 Tighten coupling nut:
__ CAUTION : USE 2 WRENCHES TO REMOVE OR INSTALL THE TUBE
_______ COUPLING NUTS. ONE WRENCH TO HOLD THE UNION AND ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT. THIS WILL PREVENT DAMAGE TO THE HARDWARE.
a Remove the temporary line. Re-connect the LPTCC fuel supply
_ hose to the HMU. TORQUE the coupling nut to between 180 and 200 lbf.in (2.03 and 2.26 m.daN).
24 Install caps on all fuel system ports. Make sure that all
__ lines have been connected and do not leak.
(c) Close the VBV doors, (Ref. TASK 75-31-20-820-001).
(d) Install vapor barrier film (Material No. CP2160) over the VBV bleed grills.
(e) Drain the engine oil from the areas that follow:
1 Oil tank (Ref. TASK 12-13-79-610-003).
_
2 Accessory gearbox (AGB) (Ref. TASK 12-13-79-610-004).
_
3 Transfer gearbox (TGB) (Ref. TASK 12-13-79-610-004)
_
4 Supply filter on lubrication unit.
_ 5 The oil supply lines between the lubrication unit and the
_
sumps and gearboxes.
6 The scavenge oil lines between the sumps and gearboxes and the
_
lubrication unit.
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7 Drain the oil from the oil supply or scavenge lines that have
_ caps installed and that do not connect back to the lubrication unit. Install the caps after the oil has been drained.
(f) Preserve the lubrication system as follows:
1 Pump a mixture of approved engine oil (Material No. CP2442)
_ and 7 percent (by volume) corrosion preventive additive (Material No. CP5075) or with a mixture of approved engine oil
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