FLYWHEEL BALANCE WEIGHTS TESTING AND ADJUSTING Chart A D348 Flywheel Balance Weight (For Use Only With Piloted Rotor Shaft) Range of Weight Weight Bolt Supported by Flywheel Part No. Part No. Pounds Kilograms 582-   652 265-296 5Z1180 S1571 652-   714 296-325 3N9558 S1571 714-   783 325-356 5N3140 S1571 783-   864 356-393 2N7214 S1571 864-   930 393-423 5Z905 S1571 930-   995 423-452 5Z938 S1571 1,027-1,109 467-504 5Z1098 S1590 1,109-1,183 504-538 5Z1146 S1571 1,183-1,254 538-570 5R2751 S1571 384506 lock washer is used on all bolts. Weight to be mounted at 3/8-16 tapped hole in flywheel.  (See Figure 2A.) Chart B D349 Flywheel Balance Weight (For Use Only With Piloted Rotor Shaft) Range of Weight Weight Bolt Supported by Flywheel Part No. Part No. Pounds Kilograms 663-   740 301-336 5Z2252 S1587 740-   818 336-372 3N9556 S1587 818-   890 372-405 5Z562 S1587 890-   962 405-437 3N6598 S1587 962-1,033 437-470 2N7215 S1587 1,066-1,138 485-517 5N2521 1A1460 1,227-1,299 558-590 5R3408 9S1366 1,321-1,393 600-633 5R2868 9S1366 1,409-1,482 640-674 3N7001 2B947 1,482-1,555 674-707 3N8655 2B947 1,623-1,630* 738-741* 5R2995 9S1366 3B4508 lock washer is used on all bolts. Weight to be mounted at 1/2-13 tapped hole in flywheel.  (See Figure 2B.) *Maximum permissible weight. 112