TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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) NOTE Check position of electrical connectors on new solenoid valves. Hold the valve with Ute inlet port marked "IN" to the right and the outlet port marked "OUT" to the left side. The electrical connectors must be approximately 45 degrees from the inlet ports, and pointing toward you. If the conoectors must be repositioned, place the valves in a soft jawed vise. Loosen the aco nut on top of the valves. Rotate the connectors and torque tighten aco nuts to 50 pound inches. Remove and discard protective covers and felt filtering disks (if prescnt) from inlet and outlet ports. (2) Install nipple (9, fig. 2-148.8) in outlet port of one valve and inlet port of the other valve. TI1e bottom surfaces of the two valves must be parallel. (3) Place valves in a soft jawed vise. Install outlet elbow (8) in valve outlet port and tighten so outlet leg is at twelve o'clock position. Install fuel inlet elbow (7) in valve inlet port and tighten so I Tee 2 Enne oil inlet line 3 Transmission oil inlet line 4 Adapter 5 Assembled washer bolt and loop clamp TM 9·2815-220-34 inlet leg is al "the five o'clock position. (4) Install mounting bracket (6) and secure with two capscrews and locking wire. install the assembled valves on the mounting bracket (6) and secure with four assembled washer bolts and flat washers (4 ) . Secure ground lead to bracket with capscrew and lockwasher. Connect fuel inlet tube (I) and fuel outlet tube (2) and attach electrical connectors (3) to solenoid valves (5). 2-49.4. Oil Sampling System a. Removal (I) Disconnect coupling nut of engine oil line (2, fig. 2-148.10) from tee ( l), and coupling nul of transmission oil line (3) from adapter (4 ). Remove four assembled washer bolts and four loop clamps (5) from right front and rear upper covers. Remove two assembled washer bolts (6) and remove sampling valves mounting bracket (7). Remove oil sampling system as an assembly. (2) Place mounting bracket (7) in a vise and remove inlet lines (2 and 3) from the side fitting 6 Assembled washer bolt 7 Oil sampling valve bracket 8 Toggle valve 5 TA265667I 9 Oit " samphng 11.1e 10 Lccking nut Figure 2·148. J 0. Re11101•i11g or instaing o sa111p/111g system. Chan 3 2-94.3 (2-94.4 blank)