Install belleville washers (54) with indented sides facing away from the hexagon
screw. (53) heads. See detail inset, Figure 5-1.
(b) Mount the hub (23) in accordance with step (3), below. Mount the fan (55) to the hub with hexagon
head screws (53) and belleville washers (54). Torque hexagon head screws (53) to 60 pound-feet (81
Install hub (23, Figure 5-1).
(a) Mark the new hub (23) in the same place as the old hub relative to the keyway. Install key (57) on key
slot on shaft shoulder.
(b) Heat the new hub (23) in an oven to 500 to 600*F (260 to 3600C).
(c) Be sure the fan (55) is installed on the shaft. Using heat resistant gloves, slide the hub (23) over the
key in the shaft until it seats against the shaft shoulder.
(d) Allow the hub (23) to cool for 1 hour.
(e) Tighten the setscrew (56) in the hub to 50 pound-feet (68 newton-meters).
Install belleville washers (54) with indented side facing away from the capscrew
head. See detail inset, Figure 5-1.
(f) Match the alignment marks on the fan (55) and hub (23) and mount the fan to the hub with hexagon
head screws (53) and belleville washers (54). Tighten the screws (53) to 60 pound-feet (81 newton-
5-9. GENERATOR G1 ASSEMBLY. Assemble generator Gi as follows:
Bracket. See Figure 5-1 and proceed as follows:
Fill the grease cavity of the bracket (19) with new multipurpose lithium grease MILT-18709, and install a
new oil seal (7). Assemble all grease pipes (1 and 2, Figure 5-3) and plugs (3) on the bracket.
Install two guide pins in the main stator coil assembly (33, Figure 5-1).
Use a lifting device with a minimum capacity of 2000 pounds (907 kg). Do not
allow generator to swing while It Is suspended Failure to observe this warning
may result In serious injury or death to personnel.
See Figure 5-6 and attach a hoist with a minimum capacity of 2,000 pounds (907 kg) to the bracket (19,
Align the bracket mounting holes to the guide pins on the main stator coil assembly (33) and slide the
bracket over the pins.
Install the hexagon head screw (34) and mounting washer (29). Remove the lifting gear from the bracket
Rotor Assembly. See Figure 5-1 and proceed as follows:
Do not apply any force to the generator fan for lifting or rotating the generator
rotor. Disregarding these Instructions may cause Injury to personnel or
Special care should be used In the rotor assembly Installation, or winding damage