Quantcast FIGURE 3-90.  Installing Rollers and Shoes (Typical)

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ARMY TM 9-2815-256-24 AIR FORCE TO 38G1-96-2 MARINE CORPS TM 2815-24/5 FIGURE 3-90.  Installing Rollers and Shoes (Typical) NOTE If replacing hydraulic head and rotor, or if replacing leaf springs, do steps n thru s. n. Install two leaf springs (26, FIGURE 3-73) on rotor.  Secure with two screws (25). o. Carefully handle rotor, holding rollers, and shoes in their slots, and install rotor assembly in fixture (19969) on air inlet side. Warning Compressed air can be hazardous when not used properly. p. Install fixture (19969) in vise (clamping on flat area) so that air inlet hole is not covered by vise.  Install a ¼ 18 NPT  fitting  in  air  inlet  of  fixture.    Connect  fitting  to  a  supply  of  clean  filtered,  compressed  air,  regulated  to  a pressure of 40 to 100 psi (275 to 689 kPa). NOTE To  set  roller-to-roller  dimension  to  specification,  turn  leaf  spring  screw  (25)  inward  (clockwise)  to increase, and outward (counterclockwise) to reduce roller-to-roller dimension. NOTE The roller-to-roller setting provides a completely accurate maximum fuel adjustment and it should not differ from value of 95.5 to 96.5 cu.mm/stroke. q. Using a micrometer, measure roller-to-roller dimension (distance between outer surfaces of opposed cam rollers). Dimension should be 1.972 0.0015 inch (50.08 0.038 mm), refer to FIGURE 3-91. 3-109


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