TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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(23) Position front cooling fan and hub assem- bly (2, fig. 2-33) on vertical drive shaft. Install nat washer and slotted n ut (I). Torque tighlen slotted nut to GOO lb in. and secure wilh new cotter pin. Install rear cooling fan and hub assembly (3) in the same manner. (24) With cooling fan shroud and fan housing installed, check clearance between end o f each cooling n blade and rim of cooling fan housing with feeler gage (fig. 2-61). Clearance musl be 0.062 inch minimum. When clearance is not within limits, loosen screws (fig. 2-61) and shift housing as necessary until clearance is obtained. I (25) Position cooling fan vane (6, fig. 2-30) on rear fan housing (7) and instaJJ two capscrews and lockwashers (5), and install two bolts and Jock- washers (4). Position cooling vane (6) on front fan housing (3) and install two capscrews and lock- washers (2), and two bolts and lock washers (I). TM 9-2815-220-34 Figure -61. Checking cooling fan blade cleamnce. Section V. REPLACEMENT OF ENGINE COMPONENTS 2-22. General a. This section covers the instructions for the replacement of individual engine components. Removal procedures for components are provided. However, i f a procedure is the same as provided for in the replacement of another component, ref- erence is made to that paragraph rather th an re- peated. b. Certain components, e.g. oil filters and fuel filters, are serviced at peri o d ic intervals. Refer to the pertinent vehicle maintenance manuals. Most other components are serviced as a res ult of mal- functions determined while troubleshooting the engine. c. All parts that are removed must be cleaned and inspected before being in stal led. Change 3 2·62.1 (2·62.2 blank)