RA PD 310262
Figure 59—Removing Generator Strap Nut
(4) Lift strap high enough to permit raising generator so that oil slinger (on end of generator gear) will clear adjacent gear, and allow generator to be removed from engine. Be sure to observe and count number of paper shims between generator and cradle. Lay these shims aside to be used again when generator is reinstalled. Also, note location of hole in shims for oil drain. These shims were required in original assembly to adjust driving gears for proper mesh and, if left out, gears may mesh too deeply and “howl,” even though considerably worn. Unless a new generator gasket is available, to be used when generator is reinstalled, be careful not to damage the old one.
94. INSTALL GENERATOR.
a. When installing generator, the important point to consider is correct shimming of generator in its cradle to provide correct mesh of driving gear with intermediate timing gear. Make sure same number of paper shims are used in reassembling as were found underneath generator when it was removed. After an engine has been run a considerable length of time and gears have worn to some extent, they have possibly developed sufficient lash or play to safely remove one or more of the original shims, and thus affect closer meshing and quieter operation. However, this should not be done unless timing gear case cover is removed so that gear mesh and lash can be carefully checked.
(1) Pass generator drive gear end through gear case hole, lifting generator so that oil slinger clears intermediate timing gear. Turn generator in its cradle so that end holes line up with long mounting screws which pass through gear case cover. Tighten mounting screws securely.
(2) Install curved washer, lock washer, and nut on end of clamp strap; tighten nut securely.
(3) Connect red‐black wire to generator terminal marked RELAY, and green wire to generator terminal marked SWITCH. Refer to wiring diagram ([fig. 55]).
(4) Operate engine and check generator for current output, as well as check for gear noise. If shimming under generator is proper, generator and timing gears will run quietly. If necessary, readjust shimming until gears operate quietly.