TM 9-6115-730-24
0094
ASSEMBLY - Continued
8. Align marks made on drive discs (Figure 1, Item 21) and spacer discs (Figure 1, Item 22) with marks on drive
hub (Figure 1, Item 23). Install five spacer discs (Figure 1, Item 22), five drive discs (Figure 1, Item 21), six
washers (Figure 1, Item 25) and screws (Figure 1, Item 24). Torque screws (Figure 1, Item 24) in an
alternating pattern to 192 lb-ft (260 Nm).
CAUTION
Rotor and attached parts must be installed carefully to avoid damaging rotor or stator windings.
9. Use suitable lifting device and carefully install rotor (Figure 1, Item 4) and attached parts into body assembly
(Figure 1, Item 3).
10. Install flywheel housing adapter (Figure 1, Item 20), 16 washers (Figure 1, Item 19), lockwashers (Figure 1,
Item 18), and screws (Figure 1, Item 17). Torque screws (Figure 1, Item 17) in an alternating pattern to
25 lb-ft (34 Nm).
11. Install exhaust screen (Figure 1, Item 16), two screws (Figure 1, Item 15), and nuts (Figure 1, Item 14).
12. Note orientation of Belleville washers (Figure 1, Item 12). Install exciter stator (Figure 1, Item 9) in bearing
bracket (Figure 1, Item 8) and install four Belleville washers (Figure 1, Item 12) and screws (Figure 1,
Item 13). Torque screws (Figure 1, Item 13) to 60 lb-ft (81 Nm).
13. Install rotating rectifier assembly (Figure 1, Item 11) on rotor (Figure 1, Item 4).
WARNING
Wear heat resistant gloves and avoid contacting hot metal surfaces with your hands after
generator bearing has been heated. Wear additional protective clothing as required. Failure to
comply can cause injury to personnel.
CAUTION
Do not strike bearing directly with hammer. Do not apply pressure to outer race. Use only light
taps from a soft mallet, or bearing will be damaged.
14. Heat new bearing (Figure 1, Item 10) in an oven to a maximum of 212 degrees F (100 degrees C). Apply a
thin coat of clean oil to the press fit area of the shaft on rotor (Figure 1, Item 4). Using heat resistant gloves,
install bearing (Figure 1, Item 10) over end of shaft until it seats against shaft shoulder. Bearing should slide
on shaft and be seated without excessive force. If bearing binds on shaft before fully seated, use a piece of
tubing slightly larger than the press fit area and a soft mallet to drive bearing into place. Use light taps and
apply pressure only to inner race of bearing. After installation, allow bearing to cool for one hour before
continuing assembly of generator.
15. After bearing (Figure 1, Item 10) has cooled, fill bearing grease cavity one third to one half full of grease.
0094-6
