TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Remove 1. Disconnect manifold heater fuel inlet tubes (A) from tee in manifold heater fuel solenoid valve. Remove both fuel inlet tubes. 2. Remove tube tee and elbow (B). 3. Remove two assembled washer bolts (C J attaching solenoid valve to mounting bracket and two assembled washer bolts (D) and flat washers attaching solenoid mounting bracket to filter mounting bracket. Remove solenoid mounting bracket. 4. Remove two screws (E), lock washers, and flat washers attaching manifold heater fuel filter to mounting bracket. Remove fuel solenoid valve and filter as a unit. 5. Separate filter and solenoid valve. Remove connecting nipple and inlet tube connector. Install 1. Install inlet tube connector in manifold heater fuel filter and install connecting ripple between fuel filter and manifold heater fuel solenoid valve. 2. Position fuel filter with solenoid valve on mounting bracket and install two screws (E), lock washers, and flat washers securing filter to bracket. 3. Position solenoid mounting bracket and install two assembled washer bolts (D) and flat washers securing solenoid bracket to filter mounting bracket. Install two assembled washer bolts (C) securing solenoid valve to mounting bracket. 4. Install elbow and tube tee (B) in solenoid valve. 5. Position both manifold heater fuel inlet tubes (A) and connect tubes to tee in fuel solenoid valve. Remove 1. Disconnect manifold heater fuel return tube (A) from elbow in heater fuel return solenoid valve and from elbow in tube cross. Remove fuel return tube ( B ) and grommet. 2. Remove elbows (C) and tube tee from solenoid valve. 3. Remove two assembled washer bolts (D) and remove valve from mounting bracket. 4. Remove three self-locking nuts (E) and bolts at- taching mounting bracket to left center shroud and remove bracket. Install 1. Position mounting bracket on left center shroud and install three self-locking nuts (E) and bolts securing bracket to shroud. 2. Position heater fuel return solenoid valve on mounting bracket and install two assembled washer bolts (D) securing valve to bracket. 3. Install elbows (C) and tube tee in solenoid valve. 4. Position manifold heater fuel return tube (B) with grommet and connect tube to elbow (A) in tube cross and elbow (A) in solenoid valve. Figure 5-27. Removing or installing manifold heater fuel return solenoid valve and bracket. Figure 5-26. Removing or installing manifold heater fuel inlet solenoid valve and fuel filter. 5-15